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Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2017	Feb. 28, 2018	Jun. 30, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	KVH INDUSTRIES INC \DE\
Entity Central Index Key	0001007587
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		17,525,394
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Public Float			$ 147,662,889

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 34,596	$ 26,422
Marketable securities	8,319	25,712
Accounts receivable, net of allowance for doubtful accounts of $2,852 and $3,477 as of December 31, 2017 & December 31, 2016, respectively	28,316	31,152
Inventories	22,732	20,745
Prepaid expenses and other current assets	3,816	4,801
Total current assets	97,779	108,832
Property and equipment, less accumulated depreciation of $51,099 and $45,766 as of December 31, 2017 & December 31, 2016, respectively	43,521	36,586
Intangible assets, less accumulated amortization of $20,656 and $16,344 as of December 31, 2017 & December 31, 2016, respectively	15,120	17,838
Goodwill	33,872	31,343
Other non-current assets	5,927	5,134
Non-current deferred income tax asset	20	24
Total assets	196,239	199,757
Current liabilities:
Accounts payable	15,736	8,436
Accrued compensation and employee-related expenses	5,358	4,766
Accrued other	9,210	8,317
Accrued product warranty costs	2,074	2,280
Deferred revenue	6,919	6,661
Current portion of long-term debt	2,482	7,900
Liability for Uncertain Tax Positions, Current	1,570	1,283
Total current liabilities	43,349	39,643
Non-current deferred income tax liability	2,634	3,133
Other long-term liabilities	19	326
Long-term debt, excluding current portion	44,572	50,153
Total liabilities	90,574	93,255
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.01 par value. Authorized 1,000,000 shares; none issued	0	0
Common stock, $0.01 par value. Authorized 30,000,000 shares, 18,787,816 and 18,420,914 shares issued at December 31, 2017 and December 31, 2016, respectively; and 17,128,825 and 16,761,923 shares outstanding at December 31, 2017 and December 31, 2016, respectively	188	184
Additional paid-in capital	134,361	129,660
(Accumulated deficit) retained earnings	(4,417)	6,617
Accumulated other comprehensive loss	(11,317)	(16,809)
Total Stockholders equity before treasury stock adjustment	118,815	119,652
Less: treasury stock at cost, common stock, 1,658,991 shares as of December 31, 2017 and December 31, 2016, respectively	(13,150)	(13,150)
Total stockholders’ equity	105,665	106,502
Total liabilities and stockholders’ equity	$ 196,239	$ 199,757

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 2,852	$ 3,477	$ 3,534
Property and equipment, accumulated depreciation	(51,099)	(45,766)	(43,202)
Intangible assets, accumulated amortization	$ 20,656	$ 16,344	$ 11,390
Preferred stock, par value	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,000,000	1,000,000	1,000,000
Preferred stock, shares issued	0	0	0
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	30,000,000	30,000,000	30,000,000
Common stock, shares issued	18,787,816	18,420,914	17,336,314
Common stock, shares outstanding	17,128,825	16,761,923	15,677,323
Treasury stock, shares outstanding	1,658,991	1,658,991	1,658,991

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Sales:
Product	$ 56,968	$ 73,075	$ 76,213
Service	103,120	103,047	108,421
Net sales	160,088	176,122	184,634
Costs and expenses:
Costs of product sales	37,474	46,334	47,404
Costs of service sales	52,692	52,966	54,816
Research and development	15,858	16,030	14,039
Sales, marketing and support	33,896	33,942	35,714
General and administrative	28,932	28,172	29,453
Total costs and expenses	168,852	177,444	181,426
(Loss) income from operations	(8,764)	(1,322)	3,208
Interest income	659	513	546
Interest expense	1,467	1,436	1,460
Other (expense) income, net	(366)	275	372
(Loss) income before income tax expense	(9,938)	(1,970)	2,666
Income tax expense	1,096	5,547	413
Net (loss) income	$ (11,034)	$ (7,517)	$ 2,253
Per share information:
Net income per share, basic (in dollars per share)	$ (0.67)	$ (0.47)	$ 0.14
Net income per share, diluted (in dollars per share)	$ (0.67)	$ (0.47)	$ 0.14
Number of shares used in per share calculation:
Basic (in shares)	16,419	15,834	15,625
Diluted (in shares)	16,419	15,834	15,834

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net (loss) income	$ (11,034)	$ (7,517)	$ 2,253
Unrealized loss on marketable securities	(1)	(1)	(3)
Foreign currency translation adjustment	5,404	(9,288)	(4,207)
Unrealized gain on derivative instruments, net	89	80	57
Other comprehensive income (loss), net of tax (1)	5,492	(9,209)	(4,153)
Total comprehensive loss	$ (5,542)	$ (16,726)	$ (1,900)

Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Earnings	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Treasury Stock, Shares	(1,659,000)
Beginning Balance at Dec. 31, 2014	$ 116,540	$ 172	$ 121,084	$ 11,881	$ (3,447)	$ (13,150)
Beginning Balance, Shares at Dec. 31, 2014		17,153,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	2,253			2,253
Other comprehensive (loss) income	(4,153)				(4,153)
Stock-based compensation	3,734		3,734
Payment of Stock Registration Fee	0
Issuance of common stock under employee stock purchase plan	291		291
Common stock issued under benefit plan, shares		28,000
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements	(578)		(578)
Payment of restricted stock withholdings, shares		(27,000)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 89	$ 1	88
Exercise of stock options, vesting of restricted stock awards		182,000
Ending Balance, Shares at Dec. 31, 2015	15,677,323	17,336,000
Ending Balance at Dec. 31, 2015	$ 118,176	$ 173	124,619	14,134	(7,600)	(13,150)
Treasury Stock, Shares	(1,658,991)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (7,517)			(7,517)
Other comprehensive (loss) income	(9,209)				(9,209)
Stock-based compensation	3,651		3,651
Payment of Stock Registration Fee	(4)
Issuance of common stock under employee stock purchase plan	146		146
Common stock issued under benefit plan, shares		18,000
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements	(313)		(313)
Deferred Tax Expense from Stock Options Exercised			(869)
Payment of restricted stock withholdings, shares		(32,000)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 2,437	$ 11	2,426
Exercise of stock options, vesting of restricted stock awards		1,099,000
Ending Balance, Shares at Dec. 31, 2016	16,761,923	18,421,000
Ending Balance at Dec. 31, 2016	$ 106,502	$ 184	129,660	6,617	(16,809)	(13,150)
Treasury Stock, Shares	(1,658,991)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	$ (11,034)			(11,034)
Other comprehensive (loss) income	5,492				5,492
Stock-based compensation	3,518		3,518
Payment of Stock Registration Fee	0
Issuance of common stock under employee stock purchase plan	358		358
Common stock issued under benefit plan, shares		47,000
Shares withheld, repurchased and retired related to minimum statutory tax withholding requirements	(392)		(392)
Payment of restricted stock withholdings, shares		(43,000)
Exercise of stock options and issuance of restricted stock awards, net of forfeitures	$ 1,221	$ 4	1,217
Exercise of stock options, vesting of restricted stock awards		363,000
Ending Balance, Shares at Dec. 31, 2017	17,128,825	18,788,000
Ending Balance at Dec. 31, 2017	$ 105,665	$ 188	$ 134,361	$ (4,417)	$ (11,317)	$ (13,150)
Treasury Stock, Shares	(1,658,991)

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net (loss) income	$ (11,034)	$ (7,517)	$ 2,253
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Provision for doubtful accounts	674	872	1,337
Depreciation and amortization	11,037	12,564	12,719
Deferred income taxes	(756)	2,406	(411)
Loss (gain) on disposals of fixed assets	27	907	(4)
Unrealized gain (loss) on derivative instruments	0	0	57
Compensation expense related to stock-based awards and employee stock purchase plan	3,518	3,651	3,734
Foreign Currency Transaction Gain (Loss), Unrealized	(86)	881	391
Changes in operating assets and liabilities:
Accounts receivable	2,701	10,709	(5,803)
Inventories	(1,978)	806	(3,755)
Prepaid expenses and other current assets	1,045	(332)	(1,576)
Other non-current assets	(712)	(2,378)	1,539
Accounts payable	6,711	(790)	(3,390)
Deferred revenue	(138)	1,474	(1,643)
Accrued expenses	834	(3,687)	3,023
Other long-term liabilities	(316)	(867)	(74)
Net cash provided by operating activities	11,527	18,699	8,397
Cash flows from investing activities:
Capital expenditures	(12,788)	(5,631)	(5,694)
Payments to Acquire Intangible Assets	(83)	0	0
Purchases of marketable securities	(11,115)	(13,173)	(11,323)
Maturities and sales of marketable securities	28,508	10,080	13,217
Net cash provided by (used in) investing activities	4,522	(8,724)	(3,800)
Cash flows from financing activities:
Repayments of long-term debt	(1,649)	(1,358)	(1,307)
Repayments of Long-term loan	(9,350)	(5,281)	(4,876)
Proceeds from stock options exercised and employee stock purchase plan	1,644	2,583	432
Payment of employee restricted stock withholdings	(392)	(313)	(578)
Other	0	(4)	0
Net cash used in financing activities	(9,747)	(4,373)	(6,329)
Effect of exchange rate changes on cash and cash equivalents	1,872	(1,899)	(838)
Net increase (decrease) in cash and cash equivalents	8,174	3,703	(2,570)
Cash and cash equivalents at beginning of period	26,422	22,719	25,289
Cash and cash equivalents at end of period	34,596	26,422	22,719
Supplemental disclosure of cash flow information:
Cash paid for interest	1,449	1,433	1,467
Cash paid for income taxes, net of refunds	972	3,647	2,182
Changes in Accrued Liabilities Related to Fixed Asset Additions	501	345	0
Deferred purchase price consideration related to asset acquisition included in accrued expenses	$ 50	$ 0	$ 0

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies


(a)	Description of Business

KVH Industries, Inc. (together with its subsidiaries, the Company or KVH) designs, develops, manufactures and markets mobile connectivity products and services for the marine and land markets, and inertial navigation products for both the commercial and defense markets. KVH's reporting segments are as follows:


•	the mobile connectivity segment and


•	the inertial navigation segment

KVH’s mobile connectivity products enable customers to receive voice and Internet services, and live digital television via satellite services in marine vessels, recreational vehicles, buses and automobiles. KVH’s CommBox offers a range of tools designed to increase communication efficiency, reduce costs, and manage network operations. KVH sells and leases its mobile connectivity products through an extensive international network of dealers and distributors. KVH also sells and leases products directly to end users. In the second quarter of 2017, the Company launched a new mini-VSAT Broadband service offering, AgilePlans, which is a monthly subscription model providing global connectivity to commercial maritime customers, including hardware, installation, broadband Internet, Voice over Internet Protocol (VoIP), entertainment and training content and global support for a monthly fee with no minimum commitment. KVH offers AgilePlans customers a variety of airtime data plans with varying data speeds and fixed data usage levels with overage charges per megabyte, which is similar to the plans that the Company offers to its other customers. The Company recognizes the monthly subscription fee as service revenue over the service delivery period. The Company retains ownership of the hardware that it provides to AgilePlans customers, who must return the hardware to KVH if they decide to terminate the service. Because KVH does not sell the hardware under AgilePlans, the Company does not recognize any product revenue when the hardware is deployed to an AgilePlans customer. KVH records the cost of the hardware used by AgilePlans customers as revenue-generating assets and depreciates the cost over an estimated useful life of five years. Since the Company is retaining ownership of the hardware, it does not accrue any warranty costs for AgilePlans hardware; however, any maintenance costs on the hardware is expensed in the period these costs are incurred.

KVH’s mobile connectivity service sales represent primarily sales earned from satellite voice and Internet airtime services. KVH provides, for monthly fixed and usage fees, satellite connectivity services, including broadband Internet, data and VoIP services, to its TracPhone V-series customers. Mobile connectivity service sales also include the distribution of commercially licensed entertainment, including news, sports, music, and movies to commercial and leisure customers in the maritime, hotel, and retail markets through KVH Media Group, and the distribution of training films and eLearning computer-based training courses to commercial customers in the maritime market through Super Dragon Limited and Videotel Marine Asia Limited (together referred to as Videotel). KVH also earns monthly usage fees from third-party satellite connectivity services, including voice, data and Internet services, provided to its Inmarsat and Iridium customers who choose to activate their subscriptions with KVH. Mobile connectivity service sales also include engineering services provided under development contracts, sales from product repairs, and extended warranty sales.

KVH's inertial navigation products offer precision fiber optic gyro (FOG)-based systems that enable platform and optical stabilization, navigation, pointing and guidance. KVH’s inertial navigation products also include tactical navigation systems that provide uninterrupted access to navigation and pointing information in a variety of military vehicles, including tactical trucks and light armored vehicles. KVH’s inertial navigation products are sold directly to U.S. and foreign governments and government contractors, as well as through an international network of authorized independent sales representatives. In addition, KVH's inertial navigation technology is used in numerous commercial products, such as navigation and positioning systems for various applications including precision mapping, dynamic surveying, autonomous vehicles, train location control and track geometry measurement systems, industrial robotics and optical stabilization.

KVH’s inertial navigation service sales include product repairs, engineering services provided under development contracts and extended warranty sales.


(b)	Principles of Consolidation

The accompanying consolidated financial statements of KVH Industries, Inc. and its wholly owned subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America. All of the operating expenses of the subsidiaries that serve as the Company’s European, Singaporean, Japanese, and Brazilian international distributors are reflected within sales, marketing, and support within the accompanying consolidated statements of operations. All significant intercompany accounts and transactions have been eliminated in consolidation. The Company's adoption of Accounting Standards Codification (ASC) Update No. 2015-02, Consolidation (Topic 810) - Amendments to the Consolidation Analysis, on January 1, 2016 did not have an impact on the entities that the Company consolidates, which represent its wholly-owned subsidiaries, and had no impact on the Company’s consolidated results of operations or financial position.


(c)	Significant Estimates and Assumptions and Other Significant Non-Recurring Transactions

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of sales and expenses during the reporting periods. On an on-going basis, the Company evaluates its significant estimates, including those related to revenue recognition, valuation of accounts receivable, value of inventory, expected future cash flows including growth rates, discount rates, terminal values and other assumptions and estimates used to evaluate the recoverability of long-lived assets and goodwill, estimated fair values of long-lived assets, including goodwill, amortization methods and periods, certain accrued expenses and other related charges, stock-based compensation, contingent liabilities, forfeitures and key valuation assumptions for its share-based awards, estimated fulfillment costs for warranty obligations, tax reserves and recoverability of the Company’s net deferred tax assets and related valuation allowance. There have been no material changes to the Company's significant accounting policies, except for ASC Update No. 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which the Company adopted as required on January 1, 2017 and which resulted primarily in a change in the Company’s accounting prospectively for share-based payment forfeitures and accounting for excess tax benefits or deficiencies related to share-based payments as a component of earnings (see Note 7 for further discussion) and ASC Update No. 2015-11, Simplifying the Measurement of Inventory, which the Company adopted as of January 1, 2017 and which simplified the subsequent measurement of inventory by replacing the lower of cost a market test with a lower of cost and net realizable value test (see Note 3 for further discussion).

During the fourth quarter of 2016, the Company entered into arrangements with certain third parties who had previously co-produced certain content that the Company distributes where the Company had certain ongoing royalty payments to these third parties. The agreements entered into during the fourth quarter of 2016 settled all outstanding liabilities owed by the Company to these third parties and resulted in the Company obtaining sole ownership and rights to the applicable content. Based on the final amounts paid under these agreements, the Company recognized a gain in the fourth quarter of 2016 of approximately $855. This amount was recorded as a reduction to sales, marketing and support expense in the Company's consolidated statement of operations for the year ended December 31, 2016.


(d)	Concentration of Credit Risk and Single Source Suppliers

Cash, cash equivalents and marketable securities. The Company is potentially subject to financial instrument concentration of credit risk through its cash, cash equivalent and marketable securities investments. To mitigate these risks the Company maintains cash, cash equivalents and marketable securities with reputable and nationally recognized financial institutions. As of December 31, 2017, $8,319 classified as marketable securities was held by Wells Fargo and substantially all of the cash and cash equivalents were held by Bank of America, N.A. See Note 2 for a description of marketable securities.

Trade accounts receivable. Concentrations of risk (see Note 11) with respect to trade accounts receivable are generally limited due to the large number of customers and their dispersion across several geographic areas. Although the Company does not foresee that credit risk associated with these receivables will deviate from historical experience, repayment is dependent upon the financial stability of those individual customers. The Company establishes allowances for potential bad debts and evaluates, on a monthly basis, the adequacy of those reserves based upon historical experience and its expectations for future collectability concerns. The Company performs ongoing credit evaluations of the financial condition of its customers and generally does not require collateral. Activity within the Company’s allowance for doubtful accounts for the periods presented is as follows:



	2017			2016			2015
Beginning balance	$	3,477		$	3,534		$	2,723
Additions	674			872			1,342
Deductions (write-offs/recoveries) from reserve	(1,299		)	(929		)	(531		)
Ending balance	$	2,852		$	3,477		$	3,534

Revenue and operations. Certain components from third parties used in the Company’s products are procured from single sources of supply. The failure of a supplier, including a subcontractor, to deliver on schedule could delay or interrupt the Company’s delivery of products and thereby materially adversely affect the Company’s revenues and operating results.


(e)	Revenue Recognition

Product sales. Product sales are recognized when persuasive evidence of an arrangement exists, goods are shipped, title has passed and collectability is reasonably assured. The Company’s standard sales terms require that:


•	All sales are final;


•	Terms are generally Net 30;


•	Shipments are tendered and shipped FOB (or as may be applicable, FCA, or EXW) the Company’s plant or warehouse; and


•	Title and risk of loss or damage passes to the dealer or distributor at the point of shipment when delivery is made to the possession of the carrier.

For certain inertial navigation product sales, customer acceptance or inspection may be required before title and risk of loss transfers. For those sales, revenue is recognized after transfer of title and risk of loss and after notification of customer acceptance. In certain circumstances customers may request a bill and hold arrangement. Under these bill and hold arrangements, revenue is recognized when the Company has fulfilled all of its performance obligations, the units are segregated and available for shipment in accordance with the defined contract delivery schedule, and the Company has received notification of customer acceptance which transfers title and risk of loss to the customer.

Under certain limited conditions, the Company, at its sole discretion, provides for the return of goods. No product is accepted for return and no credit is allowed on any returned product unless the Company has granted and confirmed prior written permission by means of appropriate authorization. The Company establishes reserves for potential sales returns, credits, and allowances, and evaluates, on a monthly basis, the adequacy of those reserves based upon historical experience and expectations for the future.

Multiple-element revenue arrangements. Some of our sales involve multiple-element arrangements that include both hardware-related products and contracted service, or satellite connectivity that are accounted under ASC 605-25, Multiple-Element Arrangements.

The consideration is allocated to each element based on the relative selling prices of all of the elements in the arrangement using the fair value hierarchy. ASC 605-25 requires that the Company establish vendor-specific objective evidence (VSOE) of fair value based upon the price charged when the same element is sold separately or established by management having the relevant pricing authority. When VSOE exists it is used to determine the selling price of a deliverable. When VSOE is not established, the Company attempts to establish the selling price of each element based on third-party evidence (TPE). When the Company is unable to establish selling price using VSOE or TPE, the Company uses best estimated selling price (BESP) in the allocation of arrangement consideration for the relevant deliverables. The objective of BESP is to determine the price at which the Company would transact a sale if a product or service was sold on a stand-alone basis. The Company determines BESP for our products and certain services by considering multiple factors including, but not limited to, overall market conditions, including geographic or regional-specific market factors and profit objectives for such deliverables.

Each deliverable within the Company's multiple-deliverable revenue arrangements is accounted for as a separate unit of accounting under the guidance of ASC 605-25 if both of the following criteria are met: the delivered item or items have value to the customer on a standalone basis; and for an arrangement that includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in the control of the Company. The Company considers a deliverable to have standalone value if the item is sold separately by the Company or another vendor or if the item could be resold by the customer. Further, the Company's revenue arrangements generally do not include a general right of return relative to delivered products.

Deliverables not meeting the criteria for being a separate unit of accounting are combined with a deliverable that does meet that criterion. The appropriate allocation of arrangement consideration and recognition of revenue is then determined for the combined unit of accounting.

Satellite connectivity and media content sales. Directly sold and re-sold satellite connectivity service for voice, data and Internet is recognized monthly based upon minutes or megabytes of traffic processed or contracted fixed fee schedules. Typically, all subscribers enter into a contracted one-year minimum service agreement. The Company has evaluated the factors within ASC 605 regarding gross versus net revenue reporting for its satellite connectivity service sales and its payments to the applicable service providers. Based on the evaluation of the factors within ASC 605, the Company has determined that the applicable indicators of gross revenue reporting were met. The applicable indicators of gross revenue reporting included, but were not limited to, the following:

•

The Company is the primary obligor in its arrangements with its subscribers. The Company manages all interactions with the subscribers, while satellite connectivity service providers do not interact with the subscribers. In addition, the Company assumes the entire performance risk under its arrangements with the subscribers and in the event of a performance issue, the Company may incur reduction in fees without regard for any recourse that the Company may have with the applicable satellite connective service providers.


•	The Company has latitude in establishing pricing, as the pricing under its arrangements with the subscribers is negotiated through a contracting process and has discretion on establishing pricing. The Company then separately negotiates the fees with the applicable satellite service providers.


•	The Company has complete discretion in determining which satellite service providers it will contract with.

As a result, the Company has determined that we earn revenue (as a principal) from the delivery of satellite connectivity services to its subscribers and records all satellite connectivity service sales to subscribers as gross sales. All associated regulatory service fees and costs are recorded net in the consolidated financial statements. Media content sales include the Company's distribution of commercially licensed news, sports, movies and music content for commercial and leisure customers in the maritime, hotel, and retail markets as well as training videos to the merchant marine market that are typically based on a contracted fixed fee schedule. The Company typically recognizes revenue from media content sales ratably over the period of the service contract. The accounting estimates related to the recognition of satellite connectivity and media content service sales in results of operations requires the Company to make assumptions about future billing adjustments for disputes with subscribers as well as unauthorized usage. The Company recognizes the monthly subscription fee as service revenue over the service delivery period. The Company retains ownership of the hardware that it provides to AgilePlans customers, who must return the hardware to KVH if they decide to terminate the service. Because KVH does not sell the hardware under AgilePlans, the Company does not recognize any product revenue when the hardware is deployed to an AgilePlans customer.

Lease financing. Lease financing consists of sales-type leases primarily of the TracPhone V-IP Series. The Company records the leases at a price typically equivalent to normal selling price and in excess of the cost or carrying amount. Upon delivery, the Company records the present value of all payments under these leases as revenues, and the related costs of the product are charged to cost of sales. Interest income is recognized throughout the lease term (typically three to five years) using an implicit interest rate. Through December 31, 2017, lease sales have not been a significant portion of the Company’s total sales.

Contracted service sales. The Company engages in contracts for development, production, and services activities related to standard product modification or enhancement, which it accounts for using the proportional performance method of revenue recognition. The Company considers the nature of these contracts and the types of products and services provided when determining the proper accounting for a particular contract. Customer and government-agency contracted engineering service and grant sales under development contracts are recognized primarily under the proportional performance method during the period in which the Company performs the service or development efforts in accordance with the agreement. Services performed under these types of contracts include engineering studies, surveys, building construction, prototype development, and program management. Performance is determined principally by comparing the accumulated costs incurred to date with management’s estimate of the total cost to complete the contracted work. The Company establishes billing terms at the time project deliverables and milestones are agreed. Unbilled revenue recognized in excess of the amounts invoiced to clients are classified within the accompanying consolidated balance sheets in the caption “prepaid expenses and other assets.”

The use of contract accounting requires significant judgment relative to estimating total contract revenues and costs, including assumptions relative to the length of time to complete the contract, the nature and complexity of the work to be performed, and prices for subcontractor services and materials. The risk to the Company on a fixed-price contract is that if estimates to complete the contract change from one period to the next, profit levels will vary from period to period. The Company's estimates are based upon the professional knowledge and experience of its engineers, program managers and other personnel, who review each long-term contract monthly to assess the contract's schedule, performance, technical matters and estimated cost at completion. Changes in estimates are applied when adjustments in estimated contract costs are identified, such revisions may result in current period adjustments to earnings applicable to performance in prior periods. Any advance payments arising from such extended-term development contracts are recorded as deposits. If, in any period, estimated total costs under a contract indicate an expected loss, then such loss is provided for in that period. Through December 31, 2017, contracted service revenue has not been a significant portion of the Company’s total sales.

Product service sales. Product service sales other than under development contracts are recognized when completed services are provided to the customer and collectability is reasonably assured. The Company establishes reserves for potential sales returns, credit and allowances, and evaluates, on a monthly basis, the adequacy of those reserves based upon historical experience and its expectations for the future. Through December 31, 2017, product service sales have not been a significant portion of the Company’s total sales.

Extended warranty sales. The Company sells extended warranty contracts on mobile connectivity and inertial navigation products. Sales under these contracts are recognized ratably over the contract term. Through December 31, 2017, warranty sales have not been a significant portion of the Company’s total sales.


(f)	Fair Value of Financial Instruments

The carrying amounts of the Company’s financial instruments, which include cash equivalents, investments, accounts receivable, accounts payable and accrued expenses approximate their fair values due to the short maturity of these instruments. The carrying amount of the Company’s mortgage loan approximates fair value based on currently available quoted rates of similarly structured mortgage facilities. See Note 2 for more information on the fair value of the Company’s marketable securities.


(g)	Cash, Cash Equivalents, and Marketable Securities

In accordance with the Company’s investment policy, cash in excess of operational needs is invested in money market mutual funds, government agency bonds, United States treasuries, municipal bonds, corporate notes, and certificates of deposit. All highly liquid investments with a maturity date of three months or less at the date of purchase are classified as cash equivalents. The Company determines the appropriate classification of marketable securities at each balance sheet date. As of December 31, 2017 and 2016, all of the Company’s marketable securities have been designated as available-for-sale and are carried at their fair value with unrealized gains and losses included in accumulated other comprehensive (loss) income in the accompanying consolidated balance sheets.

The Company reviews investments in debt securities for other than temporary impairment whenever the fair value of an investment is less than amortized cost and evidence indicates that an investment’s carrying amount is not recoverable within a reasonable period of time. To determine whether an impairment is other-than-temporary, the Company considers whether it intends to sell the security, whether it expects to recover the credit loss, and if it is more likely than not that the Company will be required to sell the security prior to recovery. Evidence considered in this assessment includes the reasons for the impairment, compliance with the Company’s investment policy, the severity and duration of the impairment, changes in value subsequent to year-end and forecasted performance of the investee. The Company has reviewed its securities with unrealized losses as of December 31, 2017 and 2016 and has concluded that no other-than-temporary impairments exist.


(h)	Inventories

Inventories are stated at the lower of cost and net realizable value using the first-in first-out costing method. The Company adjusts the carrying value of its inventory based on the consideration of excess and obsolete components based on future estimate demand. The Company records inventory charges to costs of product sales.


(i)	Property and Equipment

Property and equipment are stated at cost. Depreciation and amortization are computed on the straight-line method over the estimated useful lives of the respective assets. The principal lives used in determining the depreciation rates of various assets are: buildings and improvements, 5-40 years; leasehold improvements, shorter of original lease term or useful life; machinery, satellite hubs and equipment, and video-on-demand (VOD) units, 4-10 years; office and computer equipment, 3-7 years; and motor vehicles, 5 years.


(j)	Goodwill, Intangible Assets and other Long-Lived Assets

The Company’s goodwill and intangible assets are associated with the purchase of Virtek Communication (now known as KVH Industries Norway AS) in September 2010, Headland Media Limited (now known as the KVH Media Group) in May 2013, and Videotel in July 2014.

ASC Topic 350, Intangibles—Goodwill and Other (ASC 350) requires the completion of a goodwill impairment test at least annually. Historically, this goodwill impairment test was comprised of a two-step process. In January 2017, the FASB issued ASC Update No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test of Goodwill Impairment. This ASC simplified the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step of the goodwill impairment test under ASC 350. Under previous guidance, if the fair value of a reporting unit was lower than its carrying amount (Step 1), an entity would calculate any impairment charge by comparing the implied fair value of goodwill with its carrying amount (Step 2). The implied fair value of goodwill was calculated by deducting the fair value of all assets and liabilities of the reporting unit from the reporting unit’s fair value as determined in Step 1. To determine the implied fair value of goodwill, entities would estimate the fair value of any unrecognized intangible assets (including in-process research and development) and any corporate level assets or liabilities that were included in the determination of the carrying amount and fair value of the reporting unit in Step1. Under this new guidance, if a reporting unit's carrying value exceeds its fair value, an entity will record an impairment charge based on that difference, with such impairment charge limited to the amount of goodwill in the reporting unit. This ASC does not change the guidance on completing Step 1 of the goodwill impairment test. An entity will still be able to perform the existing optional qualitative goodwill impairment assessment before determining whether to proceed to Step 1. This ASC will be applied prospectively and is effective for annual and interim impairment test performed in periods beginning after December 15, 2019 for public business enterprises. Early adoption is permitted for annual and interim goodwill impairment testing dates after January 1, 2017. The Company has elected to early adopt this ASC as of January 1, 2017. The adoption of this ASC had no impact on the Company's consolidated statements of operations, financial condition or cash flows.

The Company has historically performed its annual goodwill impairment test as of August 31st. During the three months ended December 31, 2017, the Company changed its annual impairment assessment date from August 31st to October 1st to better align the timing of the test date with its annual budgeting cycle. The Company does not consider the change in the annual goodwill impairment testing date to be a material change to its method of applying an accounting principle. In connection with the change in the date of its annual goodwill impairment test, the Company performed a goodwill impairment test as of both August 31, 2017 and October 1, 2017, and concluded that the fair value of its reporting units exceeded their carrying value. To date, the Company has not had accumulated goodwill impairment losses. For the August 31, 2017 test, the Company utilized an income approach and market approaches to estimate the fair value of the Company’s reporting units. The Company believes that the assumptions it used to estimate the fair value of its reporting units were reasonable. As an additional corroborative test of the reasonableness of those assumptions, the Company completed a reconciliation of its market capitalization and overall enterprise value to the fair value of all of its reporting units as of August 31, 2017. The Company notes that, as of August 31, 2017, the fair value of all of the Company’s reporting units exceeded their carrying values by more than 10%. A negative trend of operating results or material changes to forecasted operating results could result in the requirement for additional interim goodwill impairment tests and the potential of a future goodwill impairment charge, which could be material. For the October 1, 2017 test, the Company performed a qualitative assessment over goodwill impairment concluding it was more-likely-than-not that its reporting units fair value exceeded their carrying value. Accordingly, it was not necessary for the Company to perform the full Step 1 quantitative analysis.

Intangible assets with estimated lives and other long-lived assets are reviewed for impairment when events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of intangible assets with estimated lives and other long-lived assets is measured by a comparison of the carrying amount of an asset or asset group to future net undiscounted cash flows expected to be generated by the asset or asset group. If these comparisons indicate that an asset is not recoverable, the Company will recognize an impairment loss for the amount by which the carrying value of the asset or asset group exceeds the related estimated fair value. Estimated fair value is based on either discounted future operating cash flows or appraised values, depending on the nature of the asset. During 2017, there were no events or changes in circumstances that indicated any of the carrying amounts of the Company’s intangible assets or other long-lived assets may not be recoverable. See Note 9 for further discussion of goodwill and intangible assets.


(k)	Other Non-Current Assets

Other non-current assets are primarily comprised of long-term lease receivables, prepaid expenses, and deposits.


(l)	Product Warranty

The Company’s products carry standard limited warranties that range from one to two years and vary by product. The warranty period begins on the date of retail purchase or lease by the original purchaser. The Company accrues estimated product warranty costs at the time of sale and any additional amounts are recorded when such costs are probable and can be reasonably estimated. Factors that affect the Company’s warranty liability include the number of units sold or leased, historical and anticipated rates of warranty repairs and the cost per repair. Warranty and related costs are reflected within sales, marketing and support in the accompanying statements of operations. As of December 31, 2017 and 2016, the Company had accrued product warranty costs of $2,074 and $2,280, respectively. The following table summarizes product warranty activity during 2017 and 2016:



	2017			2016
Beginning balance	$	2,280		$	1,880
Charges to expense	1,042			1,723
Costs incurred	(1,248		)	(1,323		)
Ending balance	$	2,074		$	2,280


(m)	Shipping and Handling Costs

Shipping and handling costs are expensed as incurred and included in cost of sales. Billings for shipping and handling are reflected within net sales in the accompanying statements of operations.


(n)	Research and Development

Expenditures for research and development, including customer-funded research and development, are expensed as incurred. Revenue and related development costs from customer-funded research and development are as follows:



	Year Ended December 31,
	2017		2016		2015
Customer-funded service sales	$	2,621	$	1,400	$	3,002
Customer-funded costs included in costs of service sales	1,510		498		1,546


(o)	Advertising Costs

Costs related to advertising are expensed as incurred. Advertising expense was $2,739, $2,761, and $2,712 for the years ended December 31, 2017, 2016, and 2015, respectively, and is included in sales, marketing, and support expense in the accompanying consolidated statements of operations.


(p)	Foreign Currency Translation

The financial statements of the Company’s foreign subsidiaries located in Denmark and Singapore are maintained using the United States dollar as the functional currency. Exchange rates in effect on the date of the transaction are used to record monetary assets and liabilities. Revenue and other expense elements are recorded at rates that approximate the rates in effect on the transaction dates. Foreign currency exchange gains and losses are recognized within “other (expense) income” in the accompanying consolidated statements of operations. For the years ended December 31, 2017, 2016, and 2015, the Company recorded a total of net foreign currency exchange losses (gains) in its accompanying consolidated statements of operations of $554, $(53), and $59, respectively, which is comprised of both realized and unrealized foreign currency exchange gains and losses.

The financial statements of the Company’s foreign subsidiaries located in the United Kingdom, Brazil, Norway, Cyprus, Belgium, the Netherlands and Japan use the foreign subsidiaries’ respective local currencies as the functional currency. The Company translates the assets and liabilities of these foreign subsidiaries at the exchange rates in effect at year-end. Net sales, costs and expenses are translated using average exchange rates in effect during the year. Gains and losses from foreign currency translation are credited or charged to accumulated other comprehensive loss included in stockholders' equity in the accompanying consolidated balance sheets.


(q)	Income Taxes

We are subject to income taxes in the U.S. and in numerous foreign jurisdictions. The Company accounts for income taxes following ASC Topic 740, Accounting for Income Taxes.

Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Deferred tax assets are reduced by a valuation allowance if it is more likely than not that some or all of a deferred tax asset will not be realized. The Company determines whether it is more likely than not that a tax position will be sustained upon examination. If it is not more likely than not that a position will be sustained, no amount of the benefit attributable to the position is recognized. The tax benefit to be recognized of any tax position that meets the more likely than not recognition threshold is calculated as the largest amount that is more than 50% likely of being realized upon resolution of the contingency.

The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company recognizes interest and penalties within the income tax expense line in the accompanying consolidated statements of operations. Accrued interest and penalties are included within the related tax liability line in the consolidated balance sheets. See Note 8 for further discussion of income taxes.


(r)	Net (Loss) Income per Common Share

Basic net (loss) income per share is calculated based on the weighted average number of common shares outstanding during the period. Diluted net income per share incorporates the dilutive effect of common stock equivalent options, warrants and other convertible securities, if any, as determined in accordance with the treasury stock accounting method. Common stock equivalents related to options and restricted stock awards for 766 shares of common stock for the year ended December 31, 2015 have been excluded from the fully diluted calculation of net income per share, as inclusion would be anti-dilutive. For the years ended December 31, 2017 and 2016 since there was a net loss, the Company excluded 228 and 162 shares, respectively, subject to outstanding stock options and non-vested restricted shares from its diluted loss per share calculation, as inclusion of these securities would have reduced the net loss per share.

A reconciliation of the basic and diluted weighted average common shares outstanding is as follows:



	2017	2016	2015
Weighted average common shares outstanding—basic	16,419	15,834	15,625
Dilutive common shares issuable in connection with stock plans	—	—	209
Weighted average common shares outstanding—diluted	16,419	15,834	15,834


(s)	Contingent Liabilities

The Company estimates the amount of potential exposure it may have with respect to claims, assessments and litigation in accordance with ASC 450, Contingencies. As of December 31, 2017 and 2016, the Company was not party to any lawsuit or proceeding that, in management's opinion, was likely to materially harm the Company's business, results of operations, financial condition or cash flows, as described in Note 16. It is not always possible to predict the outcome of litigation, as it is subject to many uncertainties. Additionally, it is not always possible for management to make meaningful estimate of the potential loss or range of loss associated with such litigation.


(t)	Operating Segments

The Company operates in two segments, the mobile connectivity and inertial navigation segments. Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker in making decisions regarding resource allocation and assessing performance. The Company’s chief operating decision maker is its President, Chief Executive Officer and Chairman of the Board.

The Company's reportable segments are: mobile connectivity and inertial navigation (see Note 12, "Segment Reporting"). The Company operates in a number of major geographic areas, including internationally. Revenues from international locations, primarily consisting of Canada, European countries, both inside and outside the European Union, as well as Africa, Asia/Pacific, the Middle East, and South America.

(u) Film Production Costs

The Company capitalizes direct costs incurred in the production of its training videos, such as writing, directing, narrating, casting, location rental, and editing. These film costs are classified as a non-current asset on its consolidated balance sheet and are placed into service upon the film title being released and available for customers' use. The Company’s sales model associated with training is subscription-based, in which fees from third parties are not directly attributable to the exhibition of a particular film but relate instead to access to the entire film library. Accordingly, management estimates that the straight line method is the most representative method for the amortization of film costs. Consistent with the period over which revenues are assessed (i.e. the subscription period), the film costs are amortized over four years. In the event that the film title is replaced or removed from the film library before the amortization period has expired, all unamortized costs are expensed immediately.

(v) Recently Issued Accounting Standards

From time to time, new accounting pronouncements are issued by the FASB or other standard setting bodies. Recently issued standards typically do not require adoption until a future effective date. Prior to their effective date, the Company evaluates the pronouncements to determine the potential effects of adoption on our consolidated financial statements.

Standards Implemented

ASC Update No. 2015-11

In April 2015, the FASB issued ASC Update No. 2015-11, Simplifying the Measurement of Inventory regarding ASC Topic 330 - Inventory. Update No. 2015-11 require entities that measure inventory using the first-in, first-out or average cost methods to measure inventory at the lower of cost and net realizable value. Net realizable value is defined as estimated selling price in the ordinary course of business less reasonably predictable costs of completion and disposal. Update No. 2015-11 is effective on a prospective basis for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2016, with earlier application permitted. The Company adopted Update No. 2015-11 on January 1, 2017 and the adoption did not have a material effect on the Company's consolidated financial position, results of operations or cash flows.

ASC Update No. 2016-09

In March 2016, the FASB issued ASC Update No. 2016-09, Compensation- Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This update is effective for annual reporting periods after December 15, 2016, including interim periods within those fiscal periods. Early adoption is permitted. The purpose of the update is to simplify several areas of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The Company adopted this ASC update on January 1, 2017. Although this ASC update does not impact the Company’s results of operations, financial position or cash flows for any periods prior to the adoption, the adoption of this ASC update had the following impact on the date of adoption:

•

The adoption of Update No. 2016-09 requires all income tax adjustments to be recorded in the consolidated statements of operations. The cumulative adjustment upon adoption to accumulated earnings was zero since the increase in net deferred tax assets was fully offset by a corresponding increase in the deferred tax asset valuation allowance. The amount of deferred tax assets that had not been previously recognized due to the recognition of excess tax benefits was

$1,571.


•	The Company has elected to account for forfeitures on share-based payments as these forfeitures occur, which represents a change from the accounting previously required under ASC Topic 718. As a result, the Company notes that future forfeitures could result in a significant reversal of stock-based compensation expense recognized in the period in which such forfeitures occur.

ASC Update No. 2017-04

In January 2017, the FASB issued ASC Update No. 2017-04, Intangibles--Goodwill and Other (Topic 350): Simplifying the Test of Goodwill Impairment. This ASC simplifies the accounting for goodwill impairment for all entities by requiring impairment charges to be based on the first step of the goodwill impairment test under ASC 350. Under previous guidance, if the fair value of a reporting unit is lower than its carrying amount (Step 1), an entity calculates any impairment charge by comparing the implied fair value of goodwill with its carrying amount (Step 2). The implied fair value of goodwill is calculated by deducting the fair value of all assets and liabilities of the reporting unit from the reporting unit’s fair value as determined in Step 1. To determine the implied fair value of goodwill, entities estimate the fair value of any unrecognized intangible assets (including in-process research and development) and any corporate-level assets or liabilities that were included in the determination of the carrying amount and fair value of the reporting unit in Step 1. Under this new guidance, if a reporting unit's carrying value exceeds its fair value, an entity will record an impairment charge based on that difference, with such impairment charge limited to the amount of goodwill in the reporting unit. This ASC does not change the guidance on completing Step 1 of the goodwill impairment test. An entity will still be able to perform the existing optional qualitative goodwill impairment assessment before determining whether to proceed to Step 1. This ASC will be applied prospectively and is effective for annual and interim impairment test performed in periods beginning after December 15, 2019 for public business enterprises. Early adoption is permitted for annual and interim goodwill impairment testing dates after January 1, 2017. The Company elected to early adopt this ASC as of January 1, 2017. The adoption of this ASC had no impact on the Company's consolidated statements of operations, financial condition or cash flows. The Company expects that adoption of this ASC will simplify the evaluation and recording of goodwill impairment charges, if any.

Standards to be Implemented

ASC Updates No. 2014-09, No. 2016-08, No. 2016-10, No. 2016-11, No. 2016-12 and No. 2016-20

In May 2014, the FASB issued ASC Update No. 2014-09, Revenue from Contracts with Customers (Topic 606). Update No. 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies using International Financial Reporting Standards and U.S. GAAP. The core principle requires entities to recognize revenue in a manner that depicts the transfer of goods or services to customers in amounts that reflect the consideration an entity expects to be entitled to in exchange for those goods or services. In July 2015, the FASB voted to approve a one-year deferral, making the standard effective for public entities for annual and interim periods beginning after December 15, 2017.

In March 2016, the FASB issued ASC Update No. 2016-08, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net). The purpose of Update No. 2016-08 is to clarify the guidance on principal versus agent considerations. It includes indicators that help to determine whether an entity controls the specified good or service before it is transferred to the customer and to assist in determining when the entity satisfied the performance obligation and as such, whether to recognize a gross or a net amount of consideration in their consolidated statement of operations.

In April 2016, the FASB issued ASC Update No. 2016-10, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing. Update No. 2016-10 clarifies that entities are not required to assess whether promised goods or services are performance obligations if they are immaterial in the context of the contract. Update No. 2016-10 also addresses how to determine whether promised goods or services are separately identifiable and permits entities to make a policy election to treat shipping and handling costs as fulfillment activities. In addition, it clarifies key provisions in Topic 606 related to licensing.

In May 2016, the FASB issued ASC Update No. 2016-11, Revenue Recognition (Topic 605) and Derivatives and Hedging (Topic 815). Update No. 2016-11 rescinds previous SEC comments that were codified in Topic 605, Topic 932 and Topic 815. Upon adoption of Topic 606, certain SEC comments including guidance on accounting for shipping and handling fees and costs and consideration given by a vendor to a customer should not be relied upon.

In May 2016, the FASB also issued ASC Update No. 2016-12, Revenue from Contracts with Customers (Topic 606): Narrow Scope Improvements and Practical Expedients. Update No. 2016-12 provides clarity around collectability, presentation of sales taxes, non-cash consideration, contract modifications at transition and completed contracts at transition. Update No. 2016-12 also includes a technical correction within Topic 606 related to required disclosures if the guidance is applied retrospectively upon adoption.

In December 2016, the FASB issued ASC Update No. 2016-20, Technical Corrections and Improvements to Topic 606, Revenue from Contracts with Customers. Update No. 2016-20 allows entities not to make quantitative disclosures about remaining performance obligations in certain cases and requires entities that use any of the optional exemptions to expand their qualitative disclosures. Update No. 2016-20 also clarifies other areas of the new revenue standard, including disclosure requirements for prior period performance obligations, impairment guidance for contract costs and the interaction of impairment guidance in ASC 340-40 with other guidance elsewhere in the Codification.

The Company adopted Topic 606 effective January 1, 2018. The Company adopted Topic 606 under the modified retrospective method and is only applying this method to contracts that were not completed as of the date of adoption. The modified retrospective method resulted in a cumulative effect of initially applying the standard as an adjustment to the opening balance of retained earnings at the date of initial application for any open contracts as of the adoption date. The Company established an implementation team to assist with its assessment of the impact of the new revenue guidance on its operations, consolidated financial statements and related disclosures. To date, this assessment has included (1) utilizing questionnaires to assist with the identification of revenue streams, (2) performing sample contract analyses for each revenue stream identified, (3) assessing the noted differences in recognition and measurement that may result from adopting this new standard, (4) performing detailed analyses of contracts with larger customers, and (5) developing plans to test transactions for consistency with contract provisions that affect revenue recognition. The adoption of Topic 606 will have a material effect on the Company's consolidated financial statements with the most significant impact related to our mobile connectivity segment. Based on the preliminary results of the evaluation, which is still in process, the Company currently believes that the most significant potential changes relate to promised services under certain contracts that were previously determined to be separate units of accounting under Topic 605 will not be separate performance obligations under Topic 606 due to the fact that they are not distinct in the context of the contract, which will impact the timing of revenue recognition. The Company anticipates that the most significant impact of the new standard will relate to the timing of revenue recognition for certain mini-VSAT Broadband hardware contracts. The Company also anticipates changes to the consolidated balance sheet related to accounts receivable, contract assets, and contract liabilities, as well as enhanced footnote disclosures related to customer contracts. The Company is still evaluating the impact that Topic 606 is expected to have on its accounting for costs to obtain and fulfill a contract. The Company anticipates that the adoption of Topic 606 associated with VSAT contracts as of January 1, 2018 will result in an increase to its accumulated deficit of $3.0 million to $4.0 million. This anticipated adjustment represents the gross margin on approximately $12 million to $14 million of previously recognized revenue under current guidance. Gross margin reflects revenue less cost of revenue. These ranges represent management’s best estimates of the effects of adopting Topic 606 at the time of the preparation of this Annual Report on Form 10-K. The actual impact of Topic 606 is subject to change from these estimates and such change may be significant, pending the completion of the Company’s assessment in the first quarter of 2018.

The Company is in the process of evaluating and designing the necessary changes to its business processes, systems and controls to support recognition and disclosure under the new standard. Further, the Company is continuing to assess what incremental disaggregated revenue disclosures will be required in its consolidated financial statements.

ASC Update No. 2016-01

In January 2016, the FASB issued ASC Update No. 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities. It is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early application of certain provisions is permitted. Update No. 2016-01 requires entities to measure equity investments that do not result in consolidation and are not accounted for under the equity method at fair value with changes recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. It also simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. Update No. 2016-01 also requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset and liability. The adoption of Update No. 2016-01 is not expected to have a material impact on the Company's financial position or results of operations.

ASC Update No. 2016-02

In February 2016, the FASB issued ASC Update No. 2016-02, Leases (Topic 842). It is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Earlier application is permitted. Update No. 2016-02 creates new accounting and reporting guidelines for leasing arrangements. The new guidance requires organizations that lease assets to recognize assets and liabilities on the balance sheet related to the rights and obligations created by those leases, regardless of whether they are classified as finance or operating leases. Consistent with current guidance, the recognition, measurement, and presentation of expenses and cash flows arising from a lease primarily will depend on its classification as a finance or operating lease. The guidance also requires new disclosures to help financial statement users better understand the amount, timing, and uncertainty of cash flows arising from leases. The new standard is to be applied using a modified retrospective approach. The Company is currently evaluating the impact of the new pronouncement on its financial statements. Based on its preliminary assessment, upon adoption the Company expects to recognize significant right-to-use assets and corresponding lease liabilities on its balance sheet related to leased facilities and equipment.

ASC Update No. 2016-13

In June 2016, the FASB issued ASC Update No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The update is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for fiscal years beginning after December 15, 2018. The purpose of Update No. 2016-13 is to replace the current incurred loss impairment methodology for financial assets measured at amortized cost with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information, including forecasted information, to develop credit loss estimates. The adoption of Update No. 2016-13 is not expected to have a material impact on the Company's financial position or results of operations.

ASC Update No. 2016-15

In August 2016, the FASB issued ASC Update No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. The update is effective for fiscal years beginning after December 15, 2017 and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The purpose of Update No. 2016-15 is to reduce the diversity in practice in presentation and classification of the following items within the statement of cash flows: debt prepayments, settlement of zero coupon debt instruments, contingent consideration payments, insurance proceeds, securitization transactions and distributions from equity method investees. The update also addresses classification of transactions that have characteristics of more than one class of cash flows. The adoption of Update No. 2016-15 is not expected to have a material impact on the Company's financial position or results of operations.

ASC Update No. 2016-16

In October 2016, the FASB issued ASU Update No. 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory. The update is effective for fiscal years beginning after December 15, 2017, including interim reporting periods within those fiscal years. Early adoption is permitted as of the beginning of an annual reporting period for which financial statements (interim or annual) have not been issued or made available for issuance. The purpose of Update No. 2016-16 is to allow an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs, as opposed to waiting until the asset is sold to an outside party. The adoption of Update No. 2016-16 is not expected to have a material impact on the Company's financial position or results of operations.

ASC Update No. 2017-09

In May 2017, the FASB issued ASC Update No. 2017-09, Compensation—Stock Compensation (Topic 718): Scope of Modification Accounting. The update is effective for annual periods beginning on or after December 15, 2017. Early adoption is permitted. The purpose of Update No. 2017-09 is to clarify when to account for a change to the terms or conditions of a share-based payment award as a modification under Topic 718, Compensation - Stock Compensation. Under this new guidance, modification accounting is only required if the fair value, the vesting conditions, or the equity or liability classification of the award changes as a result of the change in terms or conditions. The Company expects that the adoption of this standard will only affect, on a prospective basis, the manner in which the Company evaluates any changes to the terms or conditions of its share-based payment awards.

ASC Update No. 2017-12

In August 2017, the FASB issued ASC Update No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities. The update is effective for annual periods beginning after December 15, 2018. Early adoption is permitted. The purpose of Update No. 2017-12 is to improve the presentation and disclosure requirements for, and simplify the application and increase transparency of hedge accounting. The adoption of Update No. 2017-12 is not expected to have a material impact on the Company's financial position or results of operations.

There are no other recent accounting pronouncements issued by the FASB that the Company expects would have a material impact on the Company's financial statements.

Marketable Securities

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable securities consisted of the following as of December 31, 2017 and 2016:



December 31, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Money market mutual funds	$	7,318	$	—	$	—		$	7,318
United States treasuries	1,002		—		(1		)	1,001
Total marketable securities designated as available-for-sale	$	8,320	$	—	$	(1	)	$	8,319



December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Money market mutual funds	$	21,848	$	—	$	—	$	21,848
Certificates of deposit	3,864		—		—		3,864
Total marketable securities designated as available-for-sale	$	25,712	$	—	$	—	$	25,712

The amortized costs and fair value of debt securities as of December 31, 2017 and 2016 are shown below by effective maturity. Effective maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.



December 31, 2017	Amortized Cost		Fair Value
Due in less than one year	$	1,002	$	1,001
Due after one year and within two years	—		—
	$	1,002	$	1,001
December 31, 2016	Amortized Cost		Fair Value
Due in less than one year	$	3,864	$	3,864
Due after one year and within two years	—		—
	$	3,864	$	3,864

Interest income from cash equivalents and marketable securities was $107 and $94 for the years ended December 31, 2017 and 2016, respectively.

Inventories

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Inventories

The Company adopted ASC 2015-11, Simplifying the Measurement of Inventory as of January 1, 2017. ASC 2015-11 simplifies the subsequent measurement of inventory by replacing the lower of cost or market test with a lower of cost and net realizable value test. The adoption of this standard did not have a material impact on the Company’s consolidated financial position or results of operations. Inventories are stated at the lower of cost and net realizable value using the first-in first-out costing method. Inventories as of December 31, 2017 and 2016 include the costs of material, labor, and factory overhead. Components of inventories consist of the following:



	December 31,
	2017		2016
Raw materials	$	13,347	$	10,606
Work in process	2,137		2,185
Finished goods	7,248		7,954
	$	22,732	$	20,745

Property and Equipment

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, plant and equipment disclosure

Property and Equipment

Property and equipment, net, as of December 31, 2017 and 2016 consist of the following:



	December 31,
	2017			2016
Land	$	3,828		$	3,828
Building and improvements	24,038			21,717
Leasehold improvements	429			155
Machinery and equipment	53,217			41,777
Office and computer equipment	13,057			14,824
Motor vehicles	51			51
	94,620			82,352
Less accumulated depreciation	(51,099		)	(45,766		)
	$	43,521		$	36,586

Depreciation expense for the years ended December 31, 2017, 2016, and 2015 amounted to $6,725, $7,608, and $7,193, respectively.

Included within machinery and equipment are certain hardware revenue generating assets that had a net book value of $11,300 and $7,734 as of December 31, 2017 and 2016, respectively, that are utilized in the delivery of the Company's airtime services, media, and other content.

Debt and Line of Credit

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Debt and Line of Credit

Long-term debt consists of the following:



	December 31,
	2017		2016
Term notes	$	44,275	$	53,625
Mortgage loan	2,779		2,951
Equipment loans	—		1,477
Total	47,054		58,053
Less amounts classified as current	2,482		7,900
Long-term debt, excluding current portion	$	44,572	$	50,153

Term Note and Line of Credit

On July 1, 2014, the Company entered into (i) a five-year senior credit facility agreement (the Credit Agreement) with Bank of America, N.A., as Administrative Agent, and the lenders named from time to time as parties thereto (the Lenders), for an aggregate amount of up to $80,000, including a revolving credit facility (the Revolver) of up to $15,000 and a term loan (Term Loan) of $65,000 to be used for general corporate purposes, including both (A) the refinancing of the Company’s $30,000 then-outstanding indebtedness under its previous credit facility and (B) permitted acquisitions, (ii) revolving credit notes (together, the Revolving Credit Note) to evidence the Revolver, (iii) term notes (together, the Term Note, and together with the Revolving Credit Note, the Notes) to evidence the Term Loan, (iv) a Security Agreement (the Security Agreement) required by the Lenders with respect to the grant by the Company of a security interest in substantially all of the assets of the Company in order to secure the obligations of the Company under the Credit Agreement and the Notes, and (v) Pledge Agreements (the Pledge Agreements) required by the Lenders with respect to the grant by the Company of a security interest in 65% of the capital stock of each of KVH Industries A/S and KVH Industries U.K. Limited held by the Company in order to secure the obligations of the Company under the Credit Agreement and the Notes.

The Credit Agreement was most recently amended in March 2017 to modify the Maximum Consolidated Leverage Ratio, the Applicable Rate, the Consolidated Fixed Charge Coverage Ratio and the amortization schedule of the Term Loan, as well as to make certain other changes. The amendment was accounted for as a debt modification as it did not result in a significant modification to the Credit Agreement.

In connection with the March 2017 amendment, the Company made an additional principal repayment of $6,000 on the Term Note and amended the repayment terms. Under the amended terms, the Company must make principal repayments of $575 every three months starting on April 1, 2017 until the Term Note maturity on July 1, 2019. On the maturity date, the entire remaining principal balance of the loan, including any future loans under the Revolver, is due and payable, together with all accrued and unpaid interest, penalties, and any other amounts due and payable under the Credit Agreement. The Credit Agreement contains provisions requiring the mandatory prepayment of amounts outstanding under the Term Loan and the Revolver under specified circumstances, including (i) 100% of the net cash proceeds from certain dispositions to the extent not reinvested in the Company’s business within a stated period, (ii) 50% of the net cash proceeds from stated equity issuances and (iii) 100% of the net cash proceeds from certain receipts of more than $250 outside the ordinary course of business. The prepayments are first applied to the Term Loan, in inverse order of maturity, and then to the Revolver. In the discretion of the Administrative Agent, certain mandatory prepayments made on the Revolver can permanently reduce the amount of credit available under the Revolver.

Loans under the Credit Agreement bear interest at varying rates determined in accordance with the Credit Agreement. Each LIBOR Rate Loan, as defined in the Credit Agreement, bears interest on the outstanding principal amount thereof for each interest period from the applicable borrowing date at a rate per annum equal to the LIBOR Daily Floating Rate or LIBOR Monthly Floating Rate, each as defined in the Credit Agreement, as applicable, plus the Applicable Rate, as defined in the Credit Agreement, and each Base Rate Loan, as defined in the Credit Agreement, bears interest on the outstanding principal amount thereof from the applicable borrowing date at a rate per annum equal to the Base Rate, as defined in the Credit Agreement, plus the Applicable Rate. The Applicable Rate ranges from 1.75% to 2.25%, depending on the Company’s Consolidated Leverage Ratio, as defined in the Credit Agreement. The highest Applicable Rate applies when the Consolidated Leverage Ratio exceeds 1.50:1.00. Upon certain defaults, including failure to make payments when due, interest becomes payable at a higher default rate.

Borrowings under the Revolver are subject to the satisfaction of numerous conditions precedent at the time of each borrowing, including the continued accuracy of the Company’s representations and warranties and the absence of any default under the Credit Agreement. As of December 31, 2017, there were no borrowings outstanding under the Revolver and the full balance of $15,000 was available for borrowing.

The Credit Agreement contains two financial covenants, a Maximum Consolidated Leverage Ratio and a Minimum Consolidated Fixed Charge Coverage Ratio, each as defined in the Credit Agreement. The Maximum Consolidated Leverage Ratio may not be greater than 1.50:1.00. The Minimum Consolidated Fixed Charge Coverage Ratio may not be less than 1.25:1.00. In the March 2017 amendment, the definition of the Consolidated Fixed Charge Coverage Ratio was amended to include only maintenance capital expenditures, as defined. The Company was in compliance with these financial ratio debt covenants as of December 31, 2017.

The Credit Agreement imposes certain other affirmative and negative covenants, including without limitation covenants with respect to the payment of taxes and other obligations, compliance with laws, entry into material contracts, creation of liens, incurrence of indebtedness, investments, dispositions, fundamental changes, restricted payments, changes in the nature of the Company’s business, transactions with affiliates, corporate and accounting changes, and sale and leaseback arrangements.

The Company’s obligation to repay loans under the Credit Agreement could be accelerated upon a default or event of default under the terms of the Credit Agreement, including certain failures to pay principal or interest when due, certain breaches of representations and warranties, the failure to comply with the Company’s affirmative and negative covenants under the Credit Agreement, a change of control of the Company, certain defaults in payment relating to other indebtedness, the acceleration of payment of certain other indebtedness, certain events relating to the liquidation, dissolution, bankruptcy, insolvency or receivership of the Company, the entry of certain judgments against the Company, certain events relating to the impairment of collateral or the Lenders' security interest therein, and any other material adverse change with respect to the Company.

Mortgage Loan

The Company has a mortgage loan (as amended, the Mortgage Loan) in the amount of $4,000 related to its headquarters facility in Middletown, Rhode Island. The loan term is ten years, with a principal amortization of 20 years. The interest rate is based on the BBA LIBOR Rate plus 2.00 percentage points. The Mortgage Loan is secured by the underlying property and improvements. The monthly mortgage payment is approximately $14 plus interest and increases in increments of approximately $1 each year throughout the life of the mortgage. Due to the difference in the term of the loan and amortization of the principal, a balloon payment of $2,551 is due on April 1, 2019. The loan contains one financial covenant, a Fixed Charge Coverage Ratio, which applies in the event that the Company’s consolidated cash, cash equivalents, and marketable securities balance falls below $25,000 at any time. As the Company’s consolidated cash, cash equivalents, and marketable securities balance was above the minimum threshold throughout the year ended December 31, 2017, the Fixed Charge Coverage Ratio did not apply.

Under the Mortgage Loan, the Company may prepay its outstanding loan balance subject to certain early termination charges. If the Company were to default on the Mortgage Loan, the underlying property and improvements would be used as collateral. As discussed in Note 15 to the consolidated financial statements, the Company entered into two interest rate swap agreements that are intended to hedge its mortgage interest obligations over the term of the Mortgage Loan by fixing the interest rates specified in the mortgage loan to 5.91% for half of the principal amount outstanding as of April 1, 2010 and 6.07% for the remaining half.

Equipment Loan

On January 30, 2013, the Company borrowed $4,700 from a bank and pledged as collateral six satellite hubs and related equipment. This equipment loan had a term of five years and carried a fixed rate of interest of 2.76% per annum. In December 2013, the Company borrowed $1,200 from a bank and pledged as collateral one satellite hub and related equipment. This equipment loan had a term of five years and carried a fixed rate of interest of 3.08% per annum. In March 2017, the Company repaid in full the remaining outstanding balances of both loans before their 2018 maturity dates.

Commitment and Contingencies

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

The Company has certain operating leases for satellite capacity, various equipment, and facilities. The following reflects future minimum payments under operating leases that have initial or remaining non-cancelable lease terms at December 31, 2017:



Years ending December 31,	Operating Leases
2018	$	13,682
2019	7,109
2020	2,970
2021	1,326
2022	1,189
Thereafter	489
Total minimum lease payments	$	26,765

Total rent expense incurred under facility operating leases for the years ended December 31, 2017, 2016, and 2015 amounted to $905, $601, and $630, respectively. Total expense incurred under satellite capacity and equipment operating leases for the years ended December 31, 2017, 2016, and 2015 amounted to $31,774, $31,606, and $32,793, respectively, which also includes payments for usage charges in excess of the minimum contractual requirements.

In the normal course of business, the Company enters into unconditional purchase order obligations with its suppliers for inventory and other operational purchases. Outstanding and unconditional purchase order obligations were $13,583 as of December 31, 2017, which the Company expects to fulfill in 2018.

Other than the interest rate swaps (see Note 15), the Company did not have any off-balance sheet commitments, guarantees, or standby repurchase obligations as of December 31, 2017.

Legal Matters

From time to time, the Company is involved in litigation incidental to the conduct of its business. In the ordinary course of business, the Company is a party to inquiries, legal proceedings and claims including, from time to time, disagreements with vendors and customers. The Company is not a party to any lawsuit or proceeding that, in management's opinion, is likely to materially harm the Company's business, results of operations, financial condition or cash flows.

Advanced Media Networks, L.L.C., or AMN, filed suit in the United States District Court for the District of Rhode Island against us for allegedly infringing two of its patents, seeking unspecified monetary damages and other relief. The Company settled this claim in January 2016 with a payment of cash to AMN.

Stockholders' Equity

12 Months Ended

Dec. 31, 2017

Share-based Compensation [Abstract]

Stockholders' Equity

Stockholders’ Equity

The Company recognizes stock-based compensation in accordance with the provisions of ASC Topic 718, Compensation--Stock Compensation. The Company adopted ASC Update No. 2016-09, Compensation-Stock Compensation (ASC Topic 718): Improvements to Employee Share-Based Payment Accounting on January 1, 2017. Although this ASC update did not impact the Company’s results of operations, financial position or cash flows for any periods prior to the adoption, the adoption of this ASC update had the following impact on the date of adoption:

•

The adoption of ASC Update No. 2016-09 requires all income tax adjustments to be recorded in the consolidated statements of operations. The cumulative adjustment upon adoption to accumulated earnings was zero since the increase in net deferred tax assets was fully offset by a corresponding increase in the deferred tax asset valuation allowance. The amount of deferred tax assets that had not been previously recognized due to the recognition of excess tax benefits was $1,571.


•	The tax benefit or expense is required to be classified as a cash flow provided by (used in) operating activities. It was previously required to be presented as a cash flow provided by (used in) financing activities in the Consolidated Statements of Cash Flows, with a corresponding adjustment to operating cash flows.


•	In the diluted net earnings per share calculation, when applying the treasury stock method for shares that could be repurchased, the assumed proceeds no longer include the amount of excess tax benefit. This provision, which is only applicable on a prospective basis, did not have an impact on the Company's diluted net earnings per share calculation for the year ended December 31, 2017.

•

The Company has elected to account for forfeitures on share-based payments as these forfeitures occur instead of a 5% forfeiture rate, which represents a change from the accounting previously required under ASC Topic 718. As a result, future forfeitures could result in a significant reversal of stock-based compensation expense recognized in the period in which such forfeitures occur. During the year ended December 31, 2017, as a result of share-based award forfeitures, the Company recorded a reversal of previously recognized stock-based compensation expense of $215. In addition, had the Company continued to account for stock-based compensation expense related to forfeitures of share-based payments based on estimating the number of awards expected to be forfeited and recognizing only stock-based compensation expense on awards expected to vest, the Company would have recognized $3,449 of stock-based compensation expense, or $19 less than what was actually recorded, during the year ended December 31, 2017.

Stock-based compensation expense, excluding compensation charges related to our employee stock purchase plan, or the ESPP, was $3,468 and $3,640 for the year ended December 31, 2017 and 2016, respectively.


(a)	Employee Stock Options

The Company is authorized to grant stock options, restricted stock awards and other stock-based awards under its 2016 Equity and Incentive Plan (the 2016 Plan) with respect to up to 3,000 shares of common stock (plus up to an additional 1,690 shares in respect of certain awards under earlier equity compensation plans that may be forfeited, cancelled, reacquired by the Company or terminated after adoption of the 2016 Plan). Options are generally granted with an exercise price equal to the fair market value of the common stock on the date of grant and generally vest in equal annual amounts over four years beginning on the first anniversary of the date of the grant. No options are exercisable for periods of more than five years after date of grant. Under the 2016 Plan, each share issued under awards other than options and stock appreciation rights will reduce the number of shares reserved for issuance by two shares. Shares issued under options or stock appreciation rights will reduce the shares reserved for issuance on a share-for-share basis. The 2016 Plan and earlier equity compensation plans, pursuant to which an aggregate of 12,415 shares of the Company’s common stock were reserved for issuance, were all approved by the Company's shareholders. As of December 31, 2017, 1,715 shares were available for future grants. The Compensation Committee of the Board of Directors administers the equity compensation plans, approves the individuals to whom awards will be granted and determines the number of shares and other terms of each award. Outstanding options under the Company's equity compensation plans at December 31, 2017 expire from February 2018 through November 2022. None of the Company’s outstanding options includes performance-based or market-based vesting conditions as of December 31, 2017.

The Company has estimated the fair value of each option grant on the date of grant using the Black-Scholes option-pricing model. The expected volatility assumption is based on the historical daily price data of the Company’s common stock over a period equivalent to the weighted average expected life of the Company’s options. The expected term of options granted is derived using assumed exercise rates based on historical exercise patterns and represents the period of time the options granted are expected to be outstanding. The risk-free interest rate is based on the actual U.S. Treasury zero-coupon rates for bonds matching the expected term of the option as of the option grant date. The dividend yield of zero is based upon the fact that the Company has not historically declared or paid cash dividends, and does not expect to declare or pay dividends in the foreseeable future.

The per share weighted-average fair values of stock options granted during 2017, 2016, and 2015 were $2.74, $2.77, and $4.39, respectively. The weighted-average assumptions used to value options as of their grant date were as follows:



	Year Ended December 31,
	2017		2016		2015
Risk-free interest rate	1.98	%	1.43	%	1.55	%
Expected volatility	35.7	%	38.2	%	43.3	%
Expected life (in years)	4.22		4.18		4.17
Dividend yield	0	%	0	%	0	%

The changes in outstanding stock options for the year ended December 31, 2017, 2016, and 2015 are as follows:



	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2016	686		$	11.41
Granted	682		$	8.65
Exercised	(134	)	$	9.24
Expired, canceled or forfeited	(170	)	$	10.46
Outstanding at December 31, 2017	1,064		$	10.06	3.27	$	1,268
Exercisable at December 31, 2017	307		$	12.37	1.37	$	9
Options vested or expected to vest at December 31, 2017	1,064		$	10.06	3.27	$	1,268



	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2015	1,177		$	11.60
Granted	75		$	8.90
Exercised	(269	)	$	9.06
Expired, canceled or forfeited	(297	)	$	13.68
Outstanding at December 31, 2016	686		$	11.41	2.23	$	681
Exercisable at December 31, 2016	379		$	11.39	1.50	$	382
Options vested or expected to vest at December 31, 2016	674		$	11.42	2.04	$	662



	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2014	1,205		$	11.65
Granted	120		$	12.04
Exercised	(10	)	$	8.64
Expired, canceled or forfeited	(138	)	$	12.59
Outstanding at December 31, 2015	1,177		$	11.60	2.04	$	123
Exercisable at December 31, 2015	687		$	11.60	2.00	$	122
Options vested or expected to vest at December 31, 2015	1,154		$	11.58	1.25	$	111

The total aggregate intrinsic value of options exercised was $149, $484, and $50 in 2017, 2016, and 2015, respectively.

As of December 31, 2017, there was $1,789 of total unrecognized compensation expense related to stock options, which is expected to be recognized over a weighted-average period of 2.99 years. In 2017, 2016, and 2015, the Company recorded compensation charges of $707, $702, and $1,229, respectively, related to stock options. Compensation costs for options subject only to service conditions that vest ratably are recognized on a straight-line basis over the requisite service period for the entire award. During 2017, 2016, and 2015, cash received under stock option plans for exercises was $1,236, $2,438 and $90, respectively.


(b)	Restricted Stock

The Company granted 271, 424, and 203 restricted stock awards to employees under the terms of the 2016 Plan or the Amended and Restated 2006 Stock Incentive Plan (2006 Plan) for the years ended December 31, 2017, 2016, and 2015, respectively. The restricted stock awards generally vest annually over four years from the date of grant subject to the recipient remaining an employee through the applicable vesting dates. Compensation expense for restricted stock awards is measured at fair value on the date of grant based on the number of shares granted and the quoted market closing price of the Company’s common stock. Such value is recognized as expense over the vesting period of the award, net of forfeitures. The weighted-average grant-date fair value of restricted stock granted during 2017, 2016, and 2015 was $8.83, $8.68, and $12.43 per share, respectively.

As of December 31, 2017, there was $3,863 of total unrecognized compensation expense related to restricted stock awards, which is expected to be recognized over a weighted-average period of 2.15 years. Compensation costs for awards subject only to service conditions that vest ratably are recognized on a straight-line basis over the requisite service period for the entire award. Compensation cost for awards initially subject to certain performance conditions are recognized on a ratable basis over the requisite service period for the entire award. In 2017, 2016, and 2015, the Company recorded compensation charges of $2,760, $2,938, and $2,422, respectively, related to restricted stock awards.

Restricted stock activity under the 2006 Plan and the 2016 Plan for 2017 is as follows:



	Number of Shares		Weighted- average grant date fair value
Outstanding at December 31, 2016, unvested	644		$	10.58
Granted	271		8.83
Vested	(269	)	11.20
Forfeited	(42	)	9.57
Outstanding at December 31, 2017, unvested	604		$	9.59


(c)	Employee Stock Purchase Plan

Under the Company's Amended and Restated 1996 Employee Stock Purchase Plan (ESPP), an aggregate of 1,650 shares of common stock have been reserved for issuance, of which 954 shares remain available as of December 31, 2017.

The ESPP covers all of the Company’s employees. Under the terms of the ESPP, eligible employees can elect to have up to six percent of their pre-tax compensation withheld to purchase shares of the Company’s common stock on a semi-annual basis. Before the amendment to the plan, the ESPP allowed eligible employees the right to purchase the Company’s common stock on a semi-annual basis at 85% of the market price at the end of each purchase period. Under the amendment, the ESPP now allows eligible employees the right to purchase the Company's common stock on a semi-annual basis at 85% of the market price on the first or last day of each purchase period, whichever is lower. During 2017, 2016, and 2015, shares issued under this plan were 46, 18, and 28 shares, respectively. The Company utilizes the Black-Scholes option-pricing model to calculate the fair value of these discounted purchases. The fair value of the 15% discount is recognized as compensation expense over the purchase period. The Company applies a graded vesting approach because the ESPP provides for multiple purchase periods and is, in substance, a series of linked awards. In 2017, 2016, and 2015, the Company recorded compensation charges of $50, $11, and $58, respectively, related to the ESPP. During 2017, 2016, and 2015, cash received under the ESPP was $358, $146, and $291, respectively.


(d)	Stock- Based Compensation Expense

The following presents stock-based compensation expense, including expense for the ESPP, in the Company's consolidated statements of operations for the years ended December 31, 2017, 2016, and 2015.



	2017		2016		2015
Cost of product sales	$	298	$	321	$	317
Cost of service sales	18		1		—
Research and development	696		690		619
Sales, marketing and support	780		1,027		927
General and administrative	1,726		1,612		1,871
	$	3,518	$	3,651	$	3,734

Income Taxes

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Income tax expense (benefit) for the years ended December 31, 2017, 2016, and 2015 attributable to (loss) income from operations is presented below.



	Current			Deferred			Total
Year ended December 31, 2017
Federal	$	(41	)	$	6		$	(35	)
State	36			—			36
Foreign	1,857			(762		)	1,095
	$	1,852		$	(756	)	$	1,096
Year ended December 31, 2016
Federal	$	227		$	3,197		$	3,424
State	144			457			601
Foreign	2,770			(1,248		)	1,522
	$	3,141		$	2,406		$	5,547
Year ended December 31, 2015
Federal	$	(555	)	$	(94	)	$	(649	)
State	120			765			885
Foreign	295			(118		)	177
	$	(140	)	$	553		$	413

Actual income tax expense differs from the “expected” income tax (benefit) expense computed by applying the United States Federal statutory income tax rate of 34% to (loss) income before tax expense, as follows:



	Year Ended December 31,
	2017			2016			2015
Income tax (benefit) expense at Federal statutory income tax rate	$	(3,379	)	$	(670	)	$	906
Increase (decrease) in income taxes resulting from:
State income tax expense, net of federal benefit	56			(156		)	(37		)
State research and development, investment credits	(435		)	(363		)	(317		)
Non-deductible meals & entertainment	47			49			33
Non-deductible stock compensation expense	338			216			181
Non-deductible deferred compensation expense	—			116			260
Subpart F income, net of foreign tax credits	1,171			523			61
Foreign branch income	—			52			—
Manufacturing deduction	—			—			(102		)
Nontaxable interest income	—			(162		)	(106		)
Foreign tax rate differential	(902		)	(1,258		)	(792		)
Federal research and development credits	(427		)	(395		)	(348		)
Uncertain tax positions	189			283			(413		)
Provision to tax return adjustments	8			(95		)	80
Change in tax rates	926			14			(313		)
Change in valuation allowance	3,330			7,425			1,392
Foreign research and development incentives	(22		)	(45		)	(59		)
Other	196			13			(13		)
Income tax expense	$	1,096		$	5,547		$	413

(Loss) income before income tax expense determined by tax jurisdiction, are as follows:



	Year Ended December 31,
	2017			2016			2015
United States	$	(13,271	)	$	(7,775	)	$	(570	)
Foreign	3,333			5,805			3,236
Total	$	(9,938	)	$	(1,970	)	$	2,666

Deferred tax assets and liabilities for the periods presented consisted of the following:



	December 31,
	2017			2016
Deferred tax assets:
Accounts receivable, due to allowance for doubtful accounts	$	540		$	1,104
Inventories	581			792
Operating loss carry-forwards	4,725			3,078
Stock-based compensation expense	696			1,231
Property and equipment, due to difference in depreciation	190			148
Research and development, alternative minimum tax credit carry-forwards	4,338			3,031
Foreign tax credit carry-forwards	2,958			754
State tax credit carry-forwards	2,958			2,277
Warranty reserve	495			822
Accrued expenses	334			432
Gross deferred tax assets	17,815			13,669
Less valuation allowance	(16,014		)	(11,567		)
Total deferred tax assets	1,801			2,102
Deferred tax liabilities:
Purchased intangible assets	(2,705		)	(3,197		)
Property and equipment, due to differences in depreciation	(1,681		)	(2,003		)
Other	(29		)	(11		)
Total deferred tax liabilities	(4,415		)	(5,211		)
Net deferred tax liability	$	(2,614	)	$	(3,109	)
Net deferred tax asset- non-current	$	20		$	24
Net deferred tax liability- non-current	$	(2,634	)	$	(3,133	)

As of December 31, 2017, the Company had federal research and development tax credit carry-forwards in the amount of $4,329 and other general business credits of $9 that expire in years 2026 through 2037. As of December 31, 2017, the Company had foreign tax credit carry-forwards in the amount of $2,958 that expire in years 2026 through 2027. As of December 31, 2017, the Company had state research and development tax credit carry-forwards in the amount of $3,501 that expire in years 2018 through 2024. The Company also had other state tax credit carry-forwards of $243 available to reduce future state tax expense that expire in years 2018 through 2024.

The Company’s ability to utilize these net operating loss carry-forwards and tax credit carry-forwards may be limited in the future if the Company experiences an ownership change pursuant to Internal Revenue Code Section 382. An ownership change occurs when the ownership percentages of 5% or greater stockholders change by more than 50% over a three-year period.

As of January 1, 2017, the Company adopted Update No. 2016-09. In accordance with Update No. 2016-09, previously unrecognized excess tax benefits are recognized on a modified retrospective basis. On January 1, 2017, the Company recorded a $1,117 deferred tax asset related to unrecognized excess tax benefits with an offsetting adjustment to retained earnings. As the Company had previously recorded a full valuation allowance on its U.S. deferred tax assets, a corresponding increase to the valuation allowance was recorded with an offsetting adjustment to retained earnings.

In assessing the realizability of its net deferred tax assets, the Company considered whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. As of December 31, 2017, the Company concluded that a net increase of $4,447 of the valuation allowance was appropriate. As part of the Company’s analysis, the Company evaluated, among other factors, its recent history of generating taxable income and its near-term forecasts of future taxable income. The net increase in valuation allowance of $4,447 is composed of expense of $3,330 and an increase of $1,117 related to recording deferred tax assets as a result of the adoption of ASU 2016-09.

As of December 31, 2017, the Company has not provided for U.S. deferred income taxes on undistributed earnings of its foreign subsidiaries of approximately $18,328 since these earnings are expected to be indefinitely reinvested. Upon distribution of those earnings in the form of dividends or otherwise, the Company will be subject to additional state income taxes as well as withholding taxes in certain foreign jurisdictions. The amount of taxes attributable to the undistributed earnings is not practicably determinable.

The Company establishes reserves for uncertain tax positions based on management’s assessment of exposure associated with tax deductions, permanent tax differences, and tax credits. The tax reserves are analyzed periodically and adjustments are made as events occur that warrant adjustment to the reserve. The Company's policy is to recognize interest and penalties related to unrecognized tax benefits as a component of income tax expense.

The aggregate changes in the total gross amount of unrecognized tax benefits are as follows:



	Year Ended December 31,
	2017			2016			2015
Unrecognized tax benefits as of January 1	$	815		$	983		$	2,487
Gross increase in unrecognized tax benefits - prior year tax positions	52			—			168
Gross increase (decrease) in unrecognized tax benefits due to currency fluctuations - prior year tax positions	43			(131		)	(116		)
Gross increase in unrecognized tax benefits - current year tax positions	111			293			13
Settlements with taxing authorities	—			(330		)	(1,569		)
Lapse of statute of limitations	(15		)	—			—
Unrecognized tax benefits as of December 31	$	1,006		$	815		$	983

All unrecognized tax benefits as of December 31, 2017, 2016 and 2015, if recognized, would result in a reduction of the Company's effective tax rate.

The Company recorded interest and penalties of $67, $40, and $78 in its statement of operations for the years ended December 31, 2017, 2016, and 2015, respectively. Total accrued interest and penalties related to tax positions taken on our tax returns and included in non-current income taxes payable was approximately $564, $545, and $468 as of December 31, 2017, 2016, and 2015, respectively.

The timing of any resolution of income tax examinations is highly uncertain, as are the amounts and timing of any settlement payment. These events could cause fluctuations in the balance sheet classification of current and non-current assets and liabilities. The Company estimates that it is reasonably possible that the balance of unrecognized tax benefits as of December 31, 2017 may decrease approximately $235 in the next twelve months as a result of a lapse of statutes of limitation and settlements with taxing authorities.

The Company’s tax jurisdictions include the United States, the United Kingdom, Denmark, Cyprus, Norway, Brazil, Singapore, Belgium, the Netherlands, Hong Kong, Japan, and India. In general, the statute of limitations with respect to the Company's United States federal income taxes has expired for years prior to 2014, and the relevant state and foreign statutes vary. However, preceding years remain open to examination by United States federal and state and foreign taxing authorities to the extent of future utilization of net operating losses and research and development tax credits generated in each preceding year.

Tax Reform

The 2017 Tax Cuts and Jobs Act (the “Tax Act”), which was signed into law on December 22, 2017, has resulted in significant changes to the U.S. corporate income tax system. These changes include a federal statutory rate reduction from 35% to 21%, the elimination or reduction of certain domestic deductions and credits and limitations on the deductibility of interest expense and executive compensation. The 2017 Tax Act also transitions international taxation from a worldwide system to a modified territorial system and includes base erosion prevention measures on non-U.S. earnings, which has the effect of subjecting certain earnings of our foreign subsidiaries to U.S. taxation as global intangible low-taxed income (GILTI). These changes are effective beginning in 2018.

The 2017 Tax Act also includes a one-time mandatory deemed repatriation tax on accumulated foreign subsidiaries' previously untaxed foreign earnings (the “Transition Toll Tax”).

Changes in tax rates and tax laws are accounted for in the period of enactment. Therefore, during the year ended December 31, 2017, the Company recorded a reduction in our deferred tax assets and corresponding valuation allowance of $1,780 and a net tax benefit of $54 related to the Company's current estimate of the provisions of the 2017 Tax Act.

The Securities and Exchange Commission released Staff Accounting Bulletin (SAB) No. 118 to provide guidance to companies on how to implement the accounting and disclosure changes as a result of the Tax Act. The SEC staff guidance has recognized that, due to the complexity and timing of the release of the Tax Act, the accounting for this change in the law may be incomplete upon issuance of a company's financial statements for the reporting period in which the Tax Act was enacted. SAB No. 118 states that if a company can determine a reasonable estimate for the effects of the Tax Act then this estimate can be included in the financial statements. The Company has made a preliminary estimate of the Transition Toll Tax and the remeasurement of our deferred tax assets and liabilities as of December 31, 2017. The preliminary estimate is subject to change as we finalize our analysis and as interpretations of the provisions of the 2017 Tax Act continue to develop. The final determination of the Transition Toll Tax and the remeasurement of our deferred tax assets and liabilities will be completed as additional information becomes available, but no later than one year from the enactment of the 2017 Tax Act. U.S. Treasury regulations, administrative interpretations or court decisions interpreting the 2017 Tax Act may require further adjustments and changes in our estimates, which could have a material adverse effect on our business, results of operations, financial position and cash flows.

Transition Toll Tax

The 2017 Tax Act eliminates the deferral of U.S. income tax on historical unrepatriated earnings by imposing the Transition Toll Tax, which is a one-time mandatory deemed repatriation tax on undistributed foreign earnings. The Transition Toll Tax is assessed on the U.S. shareholder's share of the foreign corporation's accumulated foreign earnings that have not previously been taxed. Earnings in the form of cash and cash equivalents will be taxed at a rate of 15.5% and all other earnings will be taxed at a rate of 8.0%.

As of December 31, 2017, the Company has included $7,818 of foreign earnings and profits in U.S. taxable income and included an additional $1,935 of foreign tax credits in deferred assets under the Transition Toll Tax. The Company's valuation allowance on deferred tax assets was reduced by $802 as a result of the Transition Toll Tax.

At December 31, 2017, we considered all of our foreign earnings to be permanently reinvested outside the U.S. as we continue to evaluate the implications of the 2017 Tax Act on the Company.

Effect on Deferred Tax Assets and Liabilities and other Adjustments

Our deferred tax assets and liabilities are measured at the enacted tax rate expected to apply when these temporary differences are expected to be realized or settled.

As the Company's U.S. deferred tax assets exceed the balance of its deferred tax liabilities at the date of enactment, the Company has recorded a reduction in deferred tax assets of $926 and a corresponding decrease in the related valuation allowance to reflect the decrease in the U.S. corporate income tax rate and other changes to U.S. tax law.

Status of Assessment

The preliminary estimate of the Transition Toll Tax and remeasurement of deferred tax assets and liabilities is subject to the finalization of management’s analysis related to certain matters, such as developing interpretations of the provisions of the 2017 Tax Act, changes to certain estimates and amounts related to the earnings and profits of certain subsidiaries and the filing of our tax returns. U.S. Treasury regulations, administrative interpretations or court decisions interpreting the 2017 Tax Act may require further adjustments and changes in our estimates.

The final determination of the Transition Toll Tax and the remeasurement of our deferred assets and liabilities will be completed as additional information becomes available, but no later than one year from the enactment of the 2017 Tax Act.

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

The Company’s goodwill and intangible assets are associated with the purchase of Virtek Communication (now KVH Industries Norway AS) in September 2010, Headland Media Limited (now known as the KVH Media Group) in May 2013, and Videotel in July 2014. Intangibles arising from the acquisition made prior to 2013 were amortized on a straight-line basis over an estimated useful life of 7 years. Intangibles arising from the acquisition of KVH Media Group are being amortized on a straight-line basis over the estimated useful life of: (i) 10 years for acquired subscriber relationships, (ii) 15 years for distribution rights, (iii) 3 years for internally developed software and (iv) 2 years for proprietary content. Intangibles arising from the acquisition of Videotel are being amortized on a straight-line basis over the estimated useful life of: (i) 8 years for acquired subscriber relationships, (ii) 5 years for favorable leases, (iii) 4 years for internally developed software and (iv) 5 years for proprietary content. The intangibles arising from the KVH Media Group and Videotel acquisitions were recorded in pounds sterling and fluctuations in exchange rates could cause these amounts to increase or decrease from time to time.

In January 2017, the Company completed the acquisition of certain subscriber relationships from a third party. This acquisition did not meet the definition of a business under ASC 2017-01, Business Combinations (Topic 805)-Clarifying the Definition of a Business, which the Company adopted on October 1, 2016. The Company ascribed $100 of the initial purchase price to the acquired subscriber relationships definite-lived intangible assets with an initial estimated useful life of 10 years. Under the asset purchase agreement, the purchase price includes a component of contingent consideration under which the Company is required to pay a percentage of recurring revenues received from the acquired subscriber relationships through 2026 up to a maximum annual payment of $114. As the acquisition did not represent a business combination, the contingent consideration arrangement is recognized only when the contingency is resolved and the consideration is paid or becomes payable. The amounts payable under the contingent consideration arrangement, if any, will be included in the measurement of the cost of the acquired subscriber relationships. During the year ended December 31, 2017, $33 in consideration was earned under the contingent consideration arrangement.

Intangible assets are subject to amortization. The following table summarizes other intangible assets as of December 31, 2017 and 2016, respectively:



	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
December 31, 2017
Subscriber relationships	$	17,912	$	8,347	$	9,565
Distribution rights	4,385		1,450		2,935
Internally developed software	2,324		2,206		118
Proprietary content	8,223		5,908		2,315
Intellectual property	2,284		2,284		—
Favorable lease	648		461		187
	$	35,776	$	20,656	$	15,120
December 31, 2016
Subscriber relationships	$	16,888	$	6,431	$	10,457
Distribution rights	4,122		1,180		2,942
Internally developed software	2,301		1,904		397
Proprietary content	7,960		4,431		3,529
Intellectual property	2,284		2,056		228
Favorable lease	627		342		285
	$	34,182	$	16,344	$	17,838

Amortization expense related to intangible assets was $4,312, $4,956, and $5,526 for years ended December 31, 2017, 2016, and 2015, respectively.

Amortization expense related to intangible assets for the years ended years ended December 31, 2017, 2016, and 2015 was as follows:



Expense Category	2017		2016		2015
Cost of service sales	$	1,477	$	2,068	$	1,978
General administrative expense	2,835		2,888		3,548
Total amortization expense	$	4,312	$	4,956	$	5,526

As of December 31, 2017, the total weighted average remaining useful lives of the definite-lived intangible assets was 4.2 years and the weighted average remaining useful lives by the definite-lived intangible asset category are as follows:



Intangible Asset	Weighted Average Remaining Useful Life in Years
Subscriber relationships	4.9
Distribution rights	10.3
Internally developed software	0.4
Proprietary content	1.5
Favorable lease	1.5

Estimated future amortization expense for intangible assets recorded by the Company at December 31, 2017 is as follows:



Years ending December 31,	Amortization Expense
2018	$	4,082
2019	3,122
2020	2,292
2021	2,292
2022	1,505
Thereafter	1,827
Total amortization expense	$	15,120

The changes in the carrying amount of intangible assets during the year ended December 31, 2017 is as follows:



	2017
Balance at January 1	$	17,838
Amortization expense	(4,312		)
Intangibles assets acquired in asset acquisition	133
Foreign currency translation adjustment	1,461
Balance at December 31	$	15,120

Goodwill is recorded when the consideration for an acquisition exceeds the fair value of net tangible and identifiable intangible assets acquired. All of the Company's goodwill as of December 31, 2017 relates to its mobile connectivity reportable segment. None of the Company's goodwill is deductible for tax purposes. The changes in the carrying amount of goodwill during the year ended December 31, 2017 is as follows:



	Goodwill
Balance at January 1, 2016	$	36,747
Foreign currency translation adjustment	(5,404		)
Balance at December 31, 2016	31,343
Foreign currency translation adjustment	2,529
Balance at December 31, 2017	$	33,872

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

+ References + Details

401(k) Plan	12 Months Ended
401(k) Plan	Dec. 31, 2017
Retirement Benefits [Abstract]
401(k) Plan	401(k) Plan The Company has a 401(k) Plan (the Plan) for all eligible employees. Participants may defer a portion of their pre-tax earnings subject to limits determined by the Internal Revenue Service. Participants age 50 or older may be eligible to make additional contributions. As of December 31, 2017, the Company matches one half of the first 6% contributed by the Plan participants. The Company’s contributions vest over a five-year period from the date of hire. Total Company matching contributions were $683, $671, and $608 for the years ended December 31, 2017, 2016, and 2015, respectively. In addition, the Company may make contributions to the Plan at the discretion of the Compensation Committee of the Board of Directors. There were no discretionary contributions in 2017, 2016, or 2015.

Business and Credit Concentrations	12 Months Ended
Business and Credit Concentrations	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Business and Credit Concentrations	Business and Credit Concentrations The Company had no customers that accounted for 10% or more of its consolidated net sales for the years ended December 31, 2017, 2016, and 2015, respectively. The Company had one customer that accounted for 17% of accounts receivable as of December 31, 2015, and all amounts were collected within 2016 in accordance with the contractual payment terms. The Company had no customers who account for 10% or more of the Company's consolidated accounts receivable as of December 31, 2017 or December 31, 2016.

Segment Reporting

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Segment Reporting

In the fourth quarter of 2016, the Company concluded that it has two operating segments, which are also reportable segments, and were organized based on products and services. The Company’s reportable segments are:


•	Mobile connectivity, and


•	Inertial navigation

The Company’s Chief Operating Decision Maker (CODM), whom the Company has identified as its Chief Executive Officer, primarily evaluates the business and assesses performance based on the revenue and operating income of the segments. The Company does not allocate interest, taxes, and certain corporate-level costs to its reportable segments, as discussed further below.

The financial results of each segment are based on revenues from external customers, cost of revenue and operating expenses that are directly attributable to the segment and an allocation of costs from shared functions. These shared functions include, but are not limited to, facilities, human resources, information technology, and engineering. Allocations are made based on management’s judgment of the most relevant factors, such as head count, number of customer sites, or other operational data that contributes to the shared costs. Certain corporate-level costs have not been allocated as they are not attributable to either segment. These costs primarily consist of broad corporate functions, including executive, legal, finance, and costs associated with corporate actions. Segment-level asset information has not been provided as such information is not reviewed by the CODM for purposes of assessing segment performance and allocating resources. There are no inter-segment sales or transactions.

The Company's performance is impacted by the levels of activity in the marine and land mobile markets and defense sectors, among others. Performance in any particular period could be impacted by the timing of sales to certain large customers.

The mobile connectivity segment primarily manufactures and distributes a comprehensive family of mobile satellite antenna products and services that provide access to television, the Internet and voice services while on the move. Product sales within the mobile connectivity segment accounted for approximately 20%, 23% and 23% of our consolidated net sales for 2017, 2016 and 2015, respectively. Sales of mini-VSAT Broadband airtime service accounted for approximately 41%, 37%, and 35% of our consolidated net sales for 2017, 2016, 2015, respectively. Sales of content and training sales within the mobile connectivity segment accounted for approximately 20%, 20% and 21% of our consolidated net sales for 2017, 2016 and 2015, respectively.

The inertial navigation segment manufactures and distributes a portfolio of digital compass and fiber optic gyro (FOG)-based systems that address the rigorous requirements of military and commercial customers and provide reliable, easy-to-use and continuously available navigation and pointing data. The principal product categories in this segment include the FOG based inertial measurement units (IMUs) for precision guidance, FOGs for tactical navigation as well as pointing and stabilization systems, and digital compasses that provide accurate heading information for demanding applications, security, automation and access control equipment and systems. Sales of FOG-based guidance and navigation systems within the inertial navigation segment accounted for approximately 13%, 10%, and 10% of consolidated net sales for 2017, 2016, and 2015, respectively.

No other single product class accounts for 10% or more of consolidated net sales.

The Company operates in a number of major geographic areas, including internationally. Revenues from international locations, primarily consisting of Canada, European countries, both inside and outside the European Union, as well as Africa, Asia/Pacific, the Middle East, and India. Revenues are based upon customer location and internationally represented 62%, 63%, and 67% of consolidated net sales for 2017, 2016 and 2015, respectively. No individual foreign country represented 10% or more of the Company's consolidated net sales for 2017. Sales to Canada represented 11% and 10% of net sales for 2016 and 2015, respectively. No other individual foreign country represented 10% or more of the Company’s consolidated net sales for 2016 or 2015.

As of December 31, 2017 and 2016, the long-lived tangible assets related to the Company’s international subsidiaries were less than 10% of the Company’s long-lived tangible assets and were deemed not material.

Net sales and operating (loss) earnings for the Company's reporting segments and the Company's (loss) income before income tax expense for the years ended December 31, 2017, 2016, and 2015 were as follows:



	For the year ended December 31,
	2017			2016			2015
Net sales:
Mobile connectivity	$	132,227		$	141,507		$	147,809
Inertial navigation	27,861			34,615			36,825
Consolidated net sales	$	160,088		$	176,122		$	184,634

Operating earnings (loss):
Mobile connectivity	$	7,334		$	10,041		$	9,459
Inertial navigation	556			5,272			7,934
Subtotal	7,890			15,313			17,393
Unallocated, net	(16,654		)	(16,635		)	(14,185		)
Consolidated (loss) operating earnings	(8,764		)	(1,322		)	3,208
Net interest and other expense	(1,174		)	(648		)	(542		)
(Loss) income before income tax expense	$	(9,938	)	$	(1,970	)	$	2,666

Depreciation expense and amortization expense for the Company's segments are presented in the table that follows for the periods presented:



	For the year ended December 31,
	2017		2016		2015
Depreciation expense:
Mobile connectivity	$	5,720	$	6,084	$	5,843
Inertial navigation	928		1,063		961
Unallocated	77		461		389
Total consolidated depreciation expense	$	6,725	$	7,608	$	7,193

Amortization expense:
Mobile connectivity	$	4,312	$	4,956	$	5,526
Inertial navigation	—		—		—
Unallocated	—		—		—
Total consolidated amortization expense	$	4,312	$	4,956	$	5,526

Share Buyback Program	12 Months Ended
Share Buyback Program	Dec. 31, 2017
Disclosure of Repurchase Agreements [Abstract]
Share Buyback Program	Share Buyback Program On November 26, 2008, the Company’s Board of Directors authorized a program to repurchase up to 1,000 shares of the Company’s common stock. As of December 31, 2017, 341 shares of the Company’s common stock remain available for repurchase under the authorized program. The repurchase program is funded using the Company’s existing cash, cash equivalents, marketable securities and future cash flows. Under the repurchase program, the Company, at management’s discretion, may repurchase shares on the open market from time to time, in privately negotiated transactions or block transactions, or through an accelerated repurchase agreement. The timing of such repurchases depends on availability of shares, price, market conditions, alternative uses of capital, and applicable regulatory requirements. The program may be modified, suspended or terminated at any time without prior notice. The repurchase program has no expiration date. There were no other repurchase programs outstanding during the year ended December 31, 2017 and no repurchase programs expired during the period. During the years ended December 31, 2017, 2016, and 2015, the Company did not repurchase any shares of its common stock in open market transactions.

Fair Value Measurements

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

ASC 820, Fair Value Measurements and Disclosures, provides a framework for measuring fair value and requires expanded disclosures regarding fair value measurements. ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. ASC 820 describes three levels of inputs that may be used to measure fair value:


Level 1:	Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities. The Company’s Level 1 assets are investments in money market mutual funds, United States treasuries, and certificates of deposit.


Level 2:	Quoted prices for similar assets or liabilities in active markets; or observable prices that are based on observable market data, based on directly or indirectly market-corroborated inputs. The Company’s Level 2 assets are investments in certain corporate notes and its Level 2 liabilities are interest rate swaps.


Level 3:	Unobservable inputs that are supported by little or no market activity, and are developed based on the best information available given the circumstances. The Company has no Level 3 assets.

Assets and liabilities measured at fair value are based the valuation techniques identified in the table below. The valuation techniques are:


(a)	Market approach—prices and other relevant information generated by market transactions involving identical or comparable assets.

(b)

The valuations of the interest rate swaps intended to mitigate the Company’s interest rate risk are determined with the assistance of a third-party financial institution using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each instrument. This analysis utilizes observable market-based inputs, including interest rate curves and interest rate volatility, and reflects the contractual terms of these instruments, including the period to maturity.

The following tables present financial assets and liabilities at December 31, 2017 and December 31, 2016 for which the Company measures fair value on a recurring basis, by level, within the fair value hierarchy:



December 31, 2017	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	7,318	$	7,318	$	—	$	—	(a)
United States treasuries	1,001		1,001		—		—		(a)
Liabilities
Interest rate swaps	$	69	$	—	$	69	$	—	(b)
December 31, 2016	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	21,848	$	21,848	$	—	$	—	(a)
Certificates of deposit	3,864		3,864		—		—		(a)
Liabilities
Interest rate swaps	$	158	$	—	$	158	$	—	(b)

Certain financial instruments are carried at cost on the consolidated balance sheets, which approximates fair value due to their short-term, highly liquid nature. These instruments include cash and cash equivalents, accounts receivable, accounts payable, and accrued expenses.

Assets Measured and Recorded at Fair Value on a Nonrecurring Basis

The Company's non-financial assets, such as goodwill, intangible assets, and other long-lived assets resulting from business combinations, are measured at fair value using income approach valuation methodologies at the date of acquisition and subsequently re-measured if an impairment exists. There were no impairments of the Company’s non-financial assets noted as of December 31, 2017 or 2016. The Company does not have any liabilities that are recorded at fair value on a non-recurring basis.

Derivative Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2017

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivative Instruments and Hedging Activities

Effective April 1, 2010, in order to reduce the volatility of cash outflows that arise from changes in interest rates, the Company entered into two interest rate swap agreements. These interest rate swap agreements are intended to hedge the Company’s mortgage loan related to its headquarters facility in Middletown, Rhode Island by fixing the interest rates specified in the mortgage loan to 5.9% for half of the principal amount outstanding and 6.1% for the remaining half of the principal amount outstanding as of April 1, 2010 until the mortgage loan expires on April 16, 2019. The Company does not use derivatives for speculative purposes. For a derivative that is designated as a cash flow hedge, changes in the fair value of the derivative are recognized in accumulated other comprehensive loss to the extent the derivative is effective at offsetting the changes in the cash flows being hedged until the hedged item affects earnings. To the extent there is any hedge ineffectiveness, changes in fair value relating to the ineffective portion are immediately recognized in earnings in other income (expense) in the Consolidated Statements of Income. The interest rate swap is recorded within accrued other liabilities on the balance sheet. The critical terms of the interest rate swaps were designed to mirror the terms of the Company’s mortgage loans. The Company designated these derivatives as cash flow hedges of the variability of the LIBOR-based interest payments on principal over a nine-year period, which ends on April 1, 2019. As of December 31, 2017, the Company determined that the existence of hedge ineffectiveness, if any, was immaterial and all changes in the fair value of the interest rate caps were recorded in the Consolidated Statements of Comprehensive Loss as a component of accumulated other comprehensive loss.

As of December 31, 2017, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:



Interest Rate Derivatives	Notional (in thousands)		Asset (Liability)		Effective Date	Maturity Date	Index	Strike Rate
Interest rate swap	$	1,389	(33	)	April 1, 2010	April 1, 2019	1-month LIBOR	5.91	%
Interest rate swap	$	1,389	(36	)	April 1, 2010	April 1, 2019	1-month LIBOR	6.07	%

Legal Matters

12 Months Ended

Dec. 31, 2017

Legal Matters [Abstract]

Legal Matters

Commitments and Contingencies



Years ending December 31,	Operating Leases
2018	$	13,682
2019	7,109
2020	2,970
2021	1,326
2022	1,189
Thereafter	489
Total minimum lease payments	$	26,765

Other than the interest rate swaps (see Note 15), the Company did not have any off-balance sheet commitments, guarantees, or standby repurchase obligations as of December 31, 2017.

Legal Matters

Quarterly Financial Results (Unaudited)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Results (Unaudited)

The following financial information for interim periods includes transactions which affect comparability of the quarterly results for the years ended December 31, 2017 and 2016.

Financial information for interim periods was as follows:



	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	(in thousands, except per share amounts)
2017
Product sales	$	14,863		$	14,323		$	14,169		$	13,613
Service sales	25,348			26,126			26,281			25,365
Cost of product sales	10,539			9,295			9,578			8,062
Cost of service sales	13,268			13,094			13,374			12,956
Operating expenses	20,874			19,428			19,299			19,085
Loss from operations	(4,470		)	(1,368		)	(1,801		)	(1,125		)
Net loss	$	(4,885	)	$	(2,026	)	$	(2,438	)	$	(1,685	)
Net loss per share (a):
Basic	$	(0.30	)	$	(0.12	)	$	(0.15	)	$	(0.10	)
Diluted	$	(0.30	)	$	(0.12	)	$	(0.15	)	$	(0.10	)
2016
Product sales	$	15,382		$	20,062		$	19,020		$	18,611
Service sales	24,998			25,904			26,826			25,319
Cost of product sales	10,670			12,989			11,001			11,674
Cost of service sales	12,991			13,259			13,576			13,140
Operating expenses	20,093			20,411			18,256			19,384
(Loss) income from operations	(3,374		)	(693		)	3,013			(268		)
Net (loss) income	$	(2,791	)	$	(806	)	$	2,863		$	(6,783	)
Net (loss) income per share (a):
Basic	$	(0.18	)	$	(0.05	)	$	0.18		$	(0.43	)
Diluted	$	(0.18	)	$	(0.05	)	$	0.18		$	(0.43	)


(a)	Net (loss) income per share is computed independently for each of the quarters. Therefore, the net (loss) income per share for the four quarters may not equal the annual net (loss) income per share data.

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Business Description and Basis of Presentation [Text Block]


(a)	Description of Business


•	the mobile connectivity segment and


•	the inertial navigation segment

KVH’s inertial navigation service sales include product repairs, engineering services provided under development contracts and extended warranty sales.

Principles of Consolidation


(b)	Principles of Consolidation

Significant Estimates and Assumptions


(c)	Significant Estimates and Assumptions and Other Significant Non-Recurring Transactions

Concentration of Credit Risk and Single Source Suppliers


(d)	Concentration of Credit Risk and Single Source Suppliers



	2017			2016			2015
Beginning balance	$	3,477		$	3,534		$	2,723
Additions	674			872			1,342
Deductions (write-offs/recoveries) from reserve	(1,299		)	(929		)	(531		)
Ending balance	$	2,852		$	3,477		$	3,534

Revenue Recognition


(e)	Revenue Recognition


•	All sales are final;


•	Terms are generally Net 30;


•	Shipments are tendered and shipped FOB (or as may be applicable, FCA, or EXW) the Company’s plant or warehouse; and


•	Title and risk of loss or damage passes to the dealer or distributor at the point of shipment when delivery is made to the possession of the carrier.

•


•	The Company has latitude in establishing pricing, as the pricing under its arrangements with the subscribers is negotiated through a contracting process and has discretion on establishing pricing. The Company then separately negotiates the fees with the applicable satellite service providers.


•	The Company has complete discretion in determining which satellite service providers it will contract with.

Fair Value of Financial Instruments


(f)	Fair Value of Financial Instruments

Cash, Cash Equivalents and Marketable Securities


(g)	Cash, Cash Equivalents, and Marketable Securities

Inventories

nventories


(

Property and Equipment


(i)	Property and Equipment

Goodwill and Long-lived Assets


(j)	Goodwill, Intangible Assets and other Long-Lived Assets

Other Non-Current Assets


(k)	Other Non-Current Assets

Other non-current assets are primarily comprised of long-term lease receivables, prepaid expenses, and deposits.

Product Warranty

roduct Warranty

Shipping and Handling Cost

hipping and Handling Costs

Shipping and handling costs are expensed as incurred and included in cost of sales. Billings for shipping and handling are reflected within net sales in the accompanying statements of operations.


(

Research and Development

esearch and Development

Expenditures for research and development, including customer-funded research and development, are expensed as incurred. R

Advertising Costs

dvertising Costs


(

Foreign Currency Translations

oreign Currency Translation


(

Income Tax

ncome Taxes

We are subject to income taxes in the U.S. and in numerous foreign jurisdictions. The Company accounts for income taxes following ASC Topic 740, Accounting for Income Taxes.


(

Net Income (Loss) per Common Share

et (Loss) Income per Common Share

A reconciliation of the basic and diluted weighted average common shares outstanding is as follows:



	2017	2016	2015
Weighted average common shares outstanding—basic	16,419	15,834	15,625
Dilutive common shares issuable in connection with stock plans	—	—	209
Weighted average common shares outstanding—diluted	16,419	15,834	15,834

Contingent Liabilities

ontingent Liabilities

Operating Segments

perating Segments

Film Costs, Policy [Policy Text Block]

u) Film Production Costs

Recent Accounting Pronouncements

ecently Issued Accounting Standards

Standards Implemented

ASC Update No. 2015-11

ASC Update No. 2016-09

•

$1,571.


•	The Company has elected to account for forfeitures on share-based payments as these forfeitures occur, which represents a change from the accounting previously required under ASC Topic 718. As a result, the Company notes that future forfeitures could result in a significant reversal of stock-based compensation expense recognized in the period in which such forfeitures occur.

ASC Update No. 2017-04

Standards to be Implemented

ASC Updates No. 2014-09, No. 2016-08, No. 2016-10, No. 2016-11, No. 2016-12 and No. 2016-20

ASC Update No. 2016-01

ASC Update No. 2016-02

ASC Update No. 2016-13

ASC Update No. 2016-15

ASC Update No. 2016-16

ASC Update No. 2017-09

ASC Update No. 2017-12

There are no other recent accounting pronouncements issued by the FASB that the Company expects would have a material impact on the Company's financial statements.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of accounts, notes, loans and financing receivable

ctivity within the Company’s allowance for doubtful accounts for the periods presented is as follows:



	2017			2016			2015
Beginning balance	$	3,477		$	3,534		$	2,723
Additions	674			872			1,342
Deductions (write-offs/recoveries) from reserve	(1,299		)	(929		)	(531		)
Ending balance	$	2,852		$	3,477		$	3,534

Summary of product warranty activity

he following table summarizes product warranty activity during 2017 and 2016:



	2017			2016
Beginning balance	$	2,280		$	1,880
Charges to expense	1,042			1,723
Costs incurred	(1,248		)	(1,323		)
Ending balance	$	2,074		$	2,280

evenue and related development costs from customer-funded research and development are as follows:



	Year Ended December 31,
	2017		2016		2015
Customer-funded service sales	$	2,621	$	1,400	$	3,002
Customer-funded costs included in costs of service sales	1,510		498		1,546


(

Schedule of reconciliation of basic and diluted weighted average common shares outstanding

reconciliation of the basic and diluted weighted average common shares outstanding is as follows:



	2017	2016	2015
Weighted average common shares outstanding—basic	16,419	15,834	15,625
Dilutive common shares issuable in connection with stock plans	—	—	209
Weighted average common shares outstanding—diluted	16,419	15,834	15,834


(

Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Available-for-sale securities

arketable securities consisted of the following as of December 31, 2017 and 2016:



December 31, 2017	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Money market mutual funds	$	7,318	$	—	$	—		$	7,318
United States treasuries	1,002		—		(1		)	1,001
Total marketable securities designated as available-for-sale	$	8,320	$	—	$	(1	)	$	8,319



December 31, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Money market mutual funds	$	21,848	$	—	$	—	$	21,848
Certificates of deposit	3,864		—		—		3,864
Total marketable securities designated as available-for-sale	$	25,712	$	—	$	—	$	25,712

Available-for-sale securities, debt maturities, amortized cost and fair value basis



December 31, 2017	Amortized Cost		Fair Value
Due in less than one year	$	1,002	$	1,001
Due after one year and within two years	—		—
	$	1,002	$	1,001
December 31, 2016	Amortized Cost		Fair Value
Due in less than one year	$	3,864	$	3,864
Due after one year and within two years	—		—
	$	3,864	$	3,864

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details

Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Components of inventories

Inventories as of December 31, 2017 and 2016 include the costs of material, labor, and factory overhead. Components of inventories consist of the following:



	December 31,
	2017		2016
Raw materials	$	13,347	$	10,606
Work in process	2,137		2,185
Finished goods	7,248		7,954
	$	22,732	$	20,745

Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property and equipment, net, as of December 31, 2017 and 2016 consist of the following:



	December 31,
	2017			2016
Land	$	3,828		$	3,828
Building and improvements	24,038			21,717
Leasehold improvements	429			155
Machinery and equipment	53,217			41,777
Office and computer equipment	13,057			14,824
Motor vehicles	51			51
	94,620			82,352
Less accumulated depreciation	(51,099		)	(45,766		)
	$	43,521		$	36,586

Commitment and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum rental payments for operating leases

The following reflects future minimum payments under operating leases that have initial or remaining non-cancelable lease terms at December 31, 2017:



Years ending December 31,	Operating Leases
2018	$	13,682
2019	7,109
2020	2,970
2021	1,326
2022	1,189
Thereafter	489
Total minimum lease payments	$	26,765

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Share-based Compensation [Abstract]

Schedule of weighted-average assumptions used to value options as of their grant date

The weighted-average assumptions used to value options as of their grant date were as follows:



	Year Ended December 31,
	2017		2016		2015
Risk-free interest rate	1.98	%	1.43	%	1.55	%
Expected volatility	35.7	%	38.2	%	43.3	%
Expected life (in years)	4.22		4.18		4.17
Dividend yield	0	%	0	%	0	%

Schedule of share-based compensation, stock options, activity

The changes in outstanding stock options for the year ended December 31, 2017, 2016, and 2015 are as follows:



	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in Years)	Aggregate Intrinsic Value
Outstanding at December 31, 2016	686		$	11.41
Granted	682		$	8.65
Exercised	(134	)	$	9.24
Expired, canceled or forfeited	(170	)	$	10.46
Outstanding at December 31, 2017	1,064		$	10.06	3.27	$	1,268
Exercisable at December 31, 2017	307		$	12.37	1.37	$	9
Options vested or expected to vest at December 31, 2017	1,064		$	10.06	3.27	$	1,268

Schedule of share-based compensation, activity

Restricted stock activity under the 2006 Plan and the 2016 Plan for 2017 is as follows:



	Number of Shares		Weighted- average grant date fair value
Outstanding at December 31, 2016, unvested	644		$	10.58
Granted	271		8.83
Vested	(269	)	11.20
Forfeited	(42	)	9.57
Outstanding at December 31, 2017, unvested	604		$	9.59

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Income Tax Disclosure [Abstract]

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

he aggregate changes in the total gross amount of unrecognized tax benefits are as follows:



	Year Ended December 31,
	2017			2016			2015
Unrecognized tax benefits as of January 1	$	815		$	983		$	2,487
Gross increase in unrecognized tax benefits - prior year tax positions	52			—			168
Gross increase (decrease) in unrecognized tax benefits due to currency fluctuations - prior year tax positions	43			(131		)	(116		)
Gross increase in unrecognized tax benefits - current year tax positions	111			293			13
Settlements with taxing authorities	—			(330		)	(1,569		)
Lapse of statute of limitations	(15		)	—			—
Unrecognized tax benefits as of December 31	$	1,006		$	815		$	983

Schedule of Components of Income Tax Expense (Benefit)

Income tax expense (benefit) for the years ended December 31, 2017, 2016, and 2015 attributable to (loss) income from operations is presented below.



	Current			Deferred			Total
Year ended December 31, 2017
Federal	$	(41	)	$	6		$	(35	)
State	36			—			36
Foreign	1,857			(762		)	1,095
	$	1,852		$	(756	)	$	1,096
Year ended December 31, 2016
Federal	$	227		$	3,197		$	3,424
State	144			457			601
Foreign	2,770			(1,248		)	1,522
	$	3,141		$	2,406		$	5,547
Year ended December 31, 2015
Federal	$	(555	)	$	(94	)	$	(649	)
State	120			765			885
Foreign	295			(118		)	177
	$	(140	)	$	553		$	413

Schedule of Effective Income Tax Rate Reconciliation

ctual income tax expense differs from the “expected” income tax (benefit) expense computed by applying the United States Federal statutory income tax rate of 34% to (loss) income before tax expense, as follows:



	Year Ended December 31,
	2017			2016			2015
Income tax (benefit) expense at Federal statutory income tax rate	$	(3,379	)	$	(670	)	$	906
Increase (decrease) in income taxes resulting from:
State income tax expense, net of federal benefit	56			(156		)	(37		)
State research and development, investment credits	(435		)	(363		)	(317		)
Non-deductible meals & entertainment	47			49			33
Non-deductible stock compensation expense	338			216			181
Non-deductible deferred compensation expense	—			116			260
Subpart F income, net of foreign tax credits	1,171			523			61
Foreign branch income	—			52			—
Manufacturing deduction	—			—			(102		)
Nontaxable interest income	—			(162		)	(106		)
Foreign tax rate differential	(902		)	(1,258		)	(792		)
Federal research and development credits	(427		)	(395		)	(348		)
Uncertain tax positions	189			283			(413		)
Provision to tax return adjustments	8			(95		)	80
Change in tax rates	926			14			(313		)
Change in valuation allowance	3,330			7,425			1,392
Foreign research and development incentives	(22		)	(45		)	(59		)
Other	196			13			(13		)
Income tax expense	$	1,096		$	5,547		$	413

Schedule of Income before Income Tax, Domestic and Foreign

ncome before income tax expense determined by tax jurisdiction, are as follows:



	Year Ended December 31,
	2017			2016			2015
United States	$	(13,271	)	$	(7,775	)	$	(570	)
Foreign	3,333			5,805			3,236
Total	$	(9,938	)	$	(1,970	)	$	2,666

Schedule of Deferred Tax Assets and Liabilities

eferred tax assets and liabilities for the periods presented consisted of the following:



	December 31,
	2017			2016
Deferred tax assets:
Accounts receivable, due to allowance for doubtful accounts	$	540		$	1,104
Inventories	581			792
Operating loss carry-forwards	4,725			3,078
Stock-based compensation expense	696			1,231
Property and equipment, due to difference in depreciation	190			148
Research and development, alternative minimum tax credit carry-forwards	4,338			3,031
Foreign tax credit carry-forwards	2,958			754
State tax credit carry-forwards	2,958			2,277
Warranty reserve	495			822
Accrued expenses	334			432
Gross deferred tax assets	17,815			13,669
Less valuation allowance	(16,014		)	(11,567		)
Total deferred tax assets	1,801			2,102
Deferred tax liabilities:
Purchased intangible assets	(2,705		)	(3,197		)
Property and equipment, due to differences in depreciation	(1,681		)	(2,003		)
Other	(29		)	(11		)
Total deferred tax liabilities	(4,415		)	(5,211		)
Net deferred tax liability	$	(2,614	)	$	(3,109	)
Net deferred tax asset- non-current	$	20		$	24
Net deferred tax liability- non-current	$	(2,634	)	$	(3,133	)

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets

The following table summarizes other intangible assets as of December 31, 2017 and 2016, respectively:



	Gross Carrying Amount		Accumulated Amortization		Net Carrying Value
December 31, 2017
Subscriber relationships	$	17,912	$	8,347	$	9,565
Distribution rights	4,385		1,450		2,935
Internally developed software	2,324		2,206		118
Proprietary content	8,223		5,908		2,315
Intellectual property	2,284		2,284		—
Favorable lease	648		461		187
	$	35,776	$	20,656	$	15,120
December 31, 2016
Subscriber relationships	$	16,888	$	6,431	$	10,457
Distribution rights	4,122		1,180		2,942
Internally developed software	2,301		1,904		397
Proprietary content	7,960		4,431		3,529
Intellectual property	2,284		2,056		228
Favorable lease	627		342		285
	$	34,182	$	16,344	$	17,838

Schedule of finite-lived intangible assets, future amortization expense

Estimated future amortization expense for intangible assets recorded by the Company at December 31, 2017 is as follows:



Years ending December 31,	Amortization Expense
2018	$	4,082
2019	3,122
2020	2,292
2021	2,292
2022	1,505
Thereafter	1,827
Total amortization expense	$	15,120

Schedule of goodwill



	Goodwill
Balance at January 1, 2016	$	36,747
Foreign currency translation adjustment	(5,404		)
Balance at December 31, 2016	31,343
Foreign currency translation adjustment	2,529
Balance at December 31, 2017	$	33,872

Business and Credit Concentrations (Tables)	12 Months Ended
Business and Credit Concentrations (Tables)	Dec. 31, 2017
Risks and Uncertainties [Abstract]
Schedule of significant portions of the Company's net sales

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of operations by geographic segment



	For the year ended December 31,
	2017			2016			2015
Net sales:
Mobile connectivity	$	132,227		$	141,507		$	147,809
Inertial navigation	27,861			34,615			36,825
Consolidated net sales	$	160,088		$	176,122		$	184,634

Operating earnings (loss):
Mobile connectivity	$	7,334		$	10,041		$	9,459
Inertial navigation	556			5,272			7,934
Subtotal	7,890			15,313			17,393
Unallocated, net	(16,654		)	(16,635		)	(14,185		)
Consolidated (loss) operating earnings	(8,764		)	(1,322		)	3,208
Net interest and other expense	(1,174		)	(648		)	(542		)
(Loss) income before income tax expense	$	(9,938	)	$	(1,970	)	$	2,666

Depreciation expense and amortization expense for the Company's segments are presented in the table that follows for the periods presented:



	For the year ended December 31,
	2017		2016		2015
Depreciation expense:
Mobile connectivity	$	5,720	$	6,084	$	5,843
Inertial navigation	928		1,063		961
Unallocated	77		461		389
Total consolidated depreciation expense	$	6,725	$	7,608	$	7,193

Amortization expense:
Mobile connectivity	$	4,312	$	4,956	$	5,526
Inertial navigation	—		—		—
Unallocated	—		—		—
Total consolidated amortization expense	$	4,312	$	4,956	$	5,526

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities measured at fair value on recurring basis

Assets and liabilities measured at fair value are based the valuation techniques identified in the table below. The valuation techniques are:


(a)	Market approach—prices and other relevant information generated by market transactions involving identical or comparable assets.

(b)



December 31, 2017	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	7,318	$	7,318	$	—	$	—	(a)
United States treasuries	1,001		1,001		—		—		(a)
Liabilities
Interest rate swaps	$	69	$	—	$	69	$	—	(b)
December 31, 2016	Total		Level 1		Level 2		Level 3		Valuation Technique
Assets
Money market mutual funds	$	21,848	$	21,848	$	—	$	—	(a)
Certificates of deposit	3,864		3,864		—		—		(a)
Liabilities
Interest rate swaps	$	158	$	—	$	158	$	—	(b)

Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2017

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk

As of December 31, 2017, the Company had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk:



Interest Rate Derivatives	Notional (in thousands)		Asset (Liability)		Effective Date	Maturity Date	Index	Strike Rate
Interest rate swap	$	1,389	(33	)	April 1, 2010	April 1, 2019	1-month LIBOR	5.91	%
Interest rate swap	$	1,389	(36	)	April 1, 2010	April 1, 2019	1-month LIBOR	6.07	%

Quarterly Financial Results (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

Financial information for interim periods was as follows:



	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	(in thousands, except per share amounts)
2017
Product sales	$	14,863		$	14,323		$	14,169		$	13,613
Service sales	25,348			26,126			26,281			25,365
Cost of product sales	10,539			9,295			9,578			8,062
Cost of service sales	13,268			13,094			13,374			12,956
Operating expenses	20,874			19,428			19,299			19,085
Loss from operations	(4,470		)	(1,368		)	(1,801		)	(1,125		)
Net loss	$	(4,885	)	$	(2,026	)	$	(2,438	)	$	(1,685	)
Net loss per share (a):
Basic	$	(0.30	)	$	(0.12	)	$	(0.15	)	$	(0.10	)
Diluted	$	(0.30	)	$	(0.12	)	$	(0.15	)	$	(0.10	)
2016
Product sales	$	15,382		$	20,062		$	19,020		$	18,611
Service sales	24,998			25,904			26,826			25,319
Cost of product sales	10,670			12,989			11,001			11,674
Cost of service sales	12,991			13,259			13,576			13,140
Operating expenses	20,093			20,411			18,256			19,384
(Loss) income from operations	(3,374		)	(693		)	3,013			(268		)
Net (loss) income	$	(2,791	)	$	(806	)	$	2,863		$	(6,783	)
Net (loss) income per share (a):
Basic	$	(0.18	)	$	(0.05	)	$	0.18		$	(0.43	)
Diluted	$	(0.18	)	$	(0.05	)	$	0.18		$	(0.43	)


(a)	Net (loss) income per share is computed independently for each of the quarters. Therefore, the net (loss) income per share for the four quarters may not equal the annual net (loss) income per share data.

Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Concentration of Credit Risk and Single Source Suppliers
Marketable securities	$ 25,712		$ 8,319	$ 25,712
Advertising Costs
Advertising expense			2,739	2,761	$ 2,712
Foreign Currency Translation
Foreign currency transaction gain (loss), before tax			(554)	$ (53)	$ 59
Gain on Settlement of Royalty Payments	$ 855
Accounting Standards Update 2016-09 [Member]
Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			$ 1,571
Scenario, Forecast [Member] \| Accounting Standards Update 2014-09 [Member] \| Minimum
Accounting Policies [Line Items]
new accounting pronouncement effect of adoption on previously stated amounts in prior periods		$ 12,000
Revenue from Contract with Customer [Member] \| Scenario, Forecast [Member] \| Accounting Standards Update 2014-09 [Member] \| Maximum
Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		14,000
Accumulated Earnings \| Scenario, Forecast [Member] \| Accounting Standards Update 2014-09 [Member] \| Minimum
Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		3,000
Accumulated Earnings \| Scenario, Forecast [Member] \| Accounting Standards Update 2014-09 [Member] \| Maximum
Accounting Policies [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ 4,000

Summary of Significant Accounting Policies - Allowance For Doubtful Accounts Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Allowance for doubtful accounts receivable [Roll Forward]
Beginning balance	$ 3,477	$ 3,534	$ 2,723
Additions	674	872	1,337
Deductions (write-offs/recoveries) from reserve	(1,299)	(929)	(531)
Ending balance	2,852	3,477	3,534
Allowance, net of FX [Member]
Allowance for doubtful accounts receivable [Roll Forward]
Additions	$ 674	$ 872	$ 1,342

Summary of Significant Accounting Policies - Property, Plant and Equipment Useful Life (Details)	12 Months Ended
	Dec. 31, 2017
Buildings and improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P40Y
Property, plant and equipment, useful life	40 years
Buildings and improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P5Y
Property, plant and equipment, useful life	5 years
Machinery, satellite hubs and equipment, and video-on-demand units \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P10Y
Property, plant and equipment, useful life	10 years
Machinery, satellite hubs and equipment, and video-on-demand units \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P4Y
Property, plant and equipment, useful life	4 years
Office and computer equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P7Y
Property, plant and equipment, useful life	7 years
Office and computer equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P3Y
Property, plant and equipment, useful life	3 years
Motor vehicles
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Estimated Useful Lives	P5Y
Property, plant and equipment, useful life	5 years

Summary of Significant Accounting Policies - Product Warranty (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Product Liability Contingency [Line Items]
Standard and Extended Product Warranty Accrual	$ 2,074	$ 2,280
Summary of product warranty activity
Beginning balance	2,280	1,880
Charges to expense	1,042	1,723
Costs incurred	(1,248)	(1,323)
Ending balance	$ 2,074	$ 2,280
Minimum
Product Liability Contingency [Line Items]
Limited product warranty period	1 year
Maximum
Product Liability Contingency [Line Items]
Limited product warranty period	2 years

Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 33,872	$ 31,343	$ 36,747
Depreciation	6,725	7,608	7,193
Amortization of Intangible Assets	$ 4,312	$ 4,956	$ 5,526

Summary of Significant Accounting Policies - Research and Development (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Research and Development
Customer-funded service sales	$ 2,621	$ 1,400	$ 3,002
Customer-funded costs included in costs of service sales	$ 1,510	$ 498	$ 1,546

Summary of Significant Accounting Policies - Net Income per Common Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Anti-dilutive common stock equivalents related to options and restricted stock awards excluded from fully diluted calculation	228	162	766
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average common shares outstanding—basic	16,419	15,834	15,625
Dilutive common shares issuable in connection with stock plans	0	0	209
Weighted average common shares outstanding—diluted	16,419	15,834	15,834

Marketable Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Marketable Securities, Interest Income	$ 0	$ 0
Amortized Cost	8,320	25,712
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(1)	0
Fair Value	8,319	25,712
Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,002	3,864
Fair Value	1,001	3,864
Money market mutual funds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	7,318	21,848
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	0	0
Fair Value	7,318	21,848
United States treasuries
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,002
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax	0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax	(1)
Fair Value	$ 1,001
Certificates of deposit
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,864
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax		0
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax		0
Fair Value		$ 3,864

Marketable Securities - Maturity Schedule (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Marketable Securities, Interest Income	$ 0	$ 0
Amortized Cost
Amortized Cost	8,320	25,712
Fair Value
Fair Value	8,319	25,712
Debt Securities
Amortized Cost
Due in less than one year	1,002	3,864
Due after one year and within two years	0	0
Amortized Cost	1,002	3,864
Fair Value
Due in less than one year	1,001	3,864
Due after one year and within two years	0	0
Fair Value	$ 1,001	$ 3,864

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Components of inventories
Raw materials	$ 13,347	$ 10,606
Work in process	2,137	2,185
Finished goods	7,248	7,954
Inventories, net	$ 22,732	$ 20,745

Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 94,620	$ 82,352
Less accumulated depreciation	(51,099)	(45,766)	$ (43,202)
Property and equipment, net	43,521	36,586
Depreciation	6,725	7,608	$ 7,193
Hardware Revenue Generating Asset [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, net	11,300	7,734
Land
Property, Plant and Equipment [Line Items]
Property and equipment, gross	3,828	3,828
Building and improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	24,038	21,717
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	429	155
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	53,217	41,777
Office and computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	13,057	14,824
Motor vehicles
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 51	$ 51

Debt and Line of Credit (Details) $ in Thousands							12 Months Ended			27 Months Ended
Debt and Line of Credit (Details) $ in Thousands	Mar. 07, 2017 USD ($)	Jul. 02, 2014 USD ($) covenant	Jul. 01, 2014	Dec. 30, 2013 USD ($) satellite_hub	Jan. 30, 2013 USD ($) satellite_hub	Jun. 09, 2011	Dec. 31, 2017 USD ($) financial_covenants	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jul. 01, 2019 USD ($)	Apr. 06, 2009 USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]
Total outstanding at December 31							$ 47,054	$ 58,053
Repayments of Long-term loan							9,350	5,281	$ 4,876
Long-term Debt, Current Maturities							2,482	7,900
Long-term Debt, Excluding Current Maturities							44,572	50,153
Line of credit \| Term loan
Long-term Debt, Fiscal Year Maturity [Abstract]
Total outstanding at December 31							$ 44,275	53,625
Mortgages
Debt Instrument [Line Items]
Debt instrument, face amount											$ 4,000
Debt instrument, maturity term							10 years
Debt instrument, principal amortization term							20 years
Monthly repayments of long-term debt, principal and interest							$ 0
Annual increase in repayments of long-term debt, principal and interest							0
Thereafter							$ 2,551
Number of financial covenants \| financial_covenants							1
Long-term Debt, Fiscal Year Maturity [Abstract]
Total outstanding at December 31							$ 2,779	2,951
Mortgages \| Minimum
Debt Instrument [Line Items]
Debt instrument, restrictive covenant, fixed charge coverage ratio, amount							25,000
Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount				$ 1,200	$ 4,700
Debt instrument, maturity term				5 years	5 years
Number of satellite hubs pledged as collateral \| satellite_hub				1	6
Debt instrument, fixed interest rate				3.08%	2.76%
Long-term Debt, Fiscal Year Maturity [Abstract]
Total outstanding at December 31							0	$ 1,477
Senior Credit Facility \| Line of credit \| Line of credit
Debt Instrument [Line Items]
Debt Instrument, Term			5 years
Number of financial covenants \| covenant		2
Long-term Debt, Fiscal Year Maturity [Abstract]
Line of credit facility, current borrowing capacity		$ 80,000
Proceeds from Lines of Credit		250
Line of credit facility, amount outstanding		$ 30,000
Line of Credit Facility, Mandatory Prepayment Provision, Net Cash Proceeds from Dispositions Not Reinvested, Percentage		100.00%
Line of Credit Facility, Mandatory Prepayment Provision, Net Cash Proceeds from Stated Equity Issuance, Percentage		50.00%
Line of Credit Facility, Mandatory Prepayment Provision, Net Cash Proceeds from Receipts Greater than 250 Thousand Dollars, Non-ordinary Business, Percentage		100.00%
Consolidated Leverage Ratio			1.50
Senior Credit Facility \| Line of credit \| Revolving loan agreement
Long-term Debt, Fiscal Year Maturity [Abstract]
Line of credit facility, current borrowing capacity		$ 15,000					$ 15,000
Senior Credit Facility \| Line of credit \| Term loan
Long-term Debt, Fiscal Year Maturity [Abstract]
Line of credit facility, current borrowing capacity		$ 65,000
Debt Instrument, Security Interest Pledged, Percentage			65.00%
Senior Credit Facility \| Line of credit \| Base Rate \| Maximum \| Line of credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.25%
Senior Credit Facility \| Line of credit \| Base Rate \| Minimum \| Line of credit
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			1.75%
Mortgage Loan On Headquarters Facility \| Mortgages \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate						2.00%
Debt Instrument, Redemption, Period One \| Senior Credit Facility \| Line of credit \| Term loan
Long-term Debt, Fiscal Year Maturity [Abstract]
Repayments of Long-term loan	$ 6,000
Debt Instrument, Redemption, Period Six \| Senior Credit Facility \| Line of credit \| Line of credit
Debt Instrument [Line Items]
Line of Credit Facility, Covenant Compliance, Maximum Consolidated Leverage Ratio								1.50
Long-term Debt, Fiscal Year Maturity [Abstract]
Line of Credit Facility, Covenant Compliance, Maximum Consolidated Fixed Charge Coverage Ratio							1.25
Subsequent Event [Member] \| Debt Instrument, Redemption, Period Three [Member] \| Senior Credit Facility \| Line of credit \| Term loan
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Periodic Payment, Principal										$ 575

Commitment and Contingencies (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016	$ 13,682
2017	7,109
2018	2,970
2019	1,326
2020	1,189
Thereafter	489
Total minimum lease payments	26,765
Purchase Commitment
Operating Leased Assets [Line Items]
Unconditional purchase order obligations	13,583
Facility
Operating Leased Assets [Line Items]
Operating leases, rent expense	905	$ 601	$ 630
Satellite Capacity and Equipment
Operating Leased Assets [Line Items]
Operating leases, rent expense	$ 31,774	$ 31,606	$ 32,793

Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2016	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ASC 2016-09 Impact: Amount of deferred tax assets that had not been previously recognized due to the recognition of excess tax benefits	$ 696	$ 1,231
Stock-Based Compensation (Textual) [Abstract]
Stock options, Outstanding, Aggregate Intrinsic Value	1,268	681	$ 123
Stock options, Exercisable, Aggregate Intrinsic Value	$ 9	$ 382	$ 122
Stock options, Exercisable, Number of Options (in shares)	307	379	687
Stock options, Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 12.37	$ 11.39	$ 11.60
Stock options, Exercisable, Weighted Average Remaining Contractual Life	1 year 4 months 13 days	1 year 6 months	2 years
Stock options, Outstanding, Weighted Average Remaining Contractual Life	3 years 3 months 7 days	2 years 2 months 23 days	2 years 14 days
Allocated Share-based Compensation Expense	$ 3,518	$ 3,651	$ 3,734
Stock options
Stock-Based Compensation (Textual) [Abstract]
Stock award, vesting period	4 years
Stock award, exercise period	5 years
Awards other than options, decrease in number of shares reserved for issuance	0
Common stock, shares reserved for issuance	12,415
Number of shares available for future grants	1,715
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	0.00%	0.00%	0.00%
Weighted-average fair value per share, options granted (in dollars per share)	$ 2.74	$ 2.77	$ 4.39
Stock options, total intrinsic value of options exercised	$ 149	$ 484	$ 50
Unrecognized compensation expense	$ 1,789
Weighted-average period of recognition (in years)	2 years 11 months 26 days
Allocated Share-based Compensation Expense	$ 707	702	1,229
Cash received under stock option plans for exercises	1,236	2,438	90
Restricted stock
Stock-Based Compensation (Textual) [Abstract]
Unrecognized compensation expense	$ 3,863
Weighted-average period of recognition (in years)	2 years 1 month 24 days
Allocated Share-based Compensation Expense	$ 2,760	$ 2,938	$ 2,422
Granted (in shares)	271	424	203
Restricted stock, Granted, Weighted-average grant date fair value (in dollars per share)	$ 8.83	$ 8.68	$ 12.43
Employee stock purchase plan
Stock-Based Compensation (Textual) [Abstract]
Number of shares available for future grants	954
Allocated Share-based Compensation Expense	$ 50	$ 11	$ 58
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	46	18	28
Employee stock purchase plan, discount percentage attributable to compensation expense	15.00%
Cash received under the employee stock purchase plan	$ 358	$ 146	$ 291
Employee stock purchase plan \| Maximum
Stock-Based Compensation (Textual) [Abstract]
Employee election percentage of pre-tax compensation withheld to purchase Company's common stock shares	6.00%
ESPP Plan [Member] \| Employee stock purchase plan
Stock-Based Compensation (Textual) [Abstract]
Employee stock purchase plan, number of shares authorized				1,650
Percentage of Company's common stock share price					85.00%
Accounting Standards Update 2016-09 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
ASC 2016-09 Impact: Amount of deferred tax assets that had not been previously recognized due to the recognition of excess tax benefits	$ 1,571
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	1,571
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost	215
Accounting Standards Update 2016-09 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost	3,449
Operating Expense [Member] \| Accounting Standards Update 2016-09 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 19

Stockholders' Equity (Details) - USD ($) $ in Thousands	12 Months Ended
Stockholders' Equity (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 3,518	$ 3,651	$ 3,734
Stock-based compensation awards excluding ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	3,468	3,640
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	2,760	2,938	2,422
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 707	$ 702	$ 1,229
Schedule of weighted-average assumptions used to value options as of their grant date
Risk-free interest rate	1.98%	1.43%	1.55%
Expected volatility	35.70%	38.20%	43.30%
Expected life (in years)	4 years 2 months 19 days	4 years 2 months 4 days	4 years 2 months 1 day
Dividend yield	0.00%	0.00%	0.00%

Stockholders' Equity - Stock Options Outstanding Rollforward (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Number of Options
Outstanding at December 31 (in shares)	686	1,177	1,205
Granted (in shares)	682	75	120
Exercised (in shares)	(134)	(269)	(10)
Expired, canceled or forfeited (in shares)	(170)	(297)	(138)
Outstanding at December 31 (in shares)	1,064	686	1,177
Exercisable at December 31 (in shares)	307	379	687
Weighted Average Exercise Price
Outstanding at December 31 (in dollars per share)	$ 11.41	$ 11.60	$ 11.65
Granted (in dollars per share)	8.65	8.90	12.04
Exercised (in dollars per share)	9.24	9.06	8.64
Expired, canceled or forfeited (in dollars per share)	10.46	13.68	12.59
Outstanding at December 31 (in dollars per share)	10.06	11.41	11.60
Exercisable at December 31 (in dollars per share)	12.37	11.39	11.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price	$ 10.06	$ 11.42	$ 11.58
Stock options, Outstanding, Weighted Average Remaining Contractual Life	3 years 3 months 7 days	2 years 2 months 23 days	2 years 14 days
Stock options, Exercisable, Weighted Average Remaining Contractual Life	1 year 4 months 13 days	1 year 6 months	2 years
Stock options, Outstanding, Aggregate Intrinsic Value	$ 1,268	$ 681	$ 123
Stock options, Exercisable, Aggregate Intrinsic Value	$ 9	$ 382	$ 122
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number	1,064	674	1,154
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	3 years 3 months 7 days	2 years 14 days	1 year 3 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	$ 1,268	$ 662	$ 111

Stockholders' Equity - Restricted Stock Outstanding Rollforward (Details) - Restricted stock - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Number of Shares
Outstanding at December 31, 2016, nonvested (in shares)	644
Granted (in shares)	271	424	203
Vested (in shares)	(269)
Forfeited (in shares)	(42)
Outstanding at December 31, 2017, nonvested (in shares)	604	644
Weighted- average grant date fair value
Outstanding at December 31, 2016, nonvested (in dollars per share)	$ 10.58
Granted (in dollars per share)	8.83	$ 8.68	$ 12.43
Vested (in dollars per share)	11.20
Forfeited (in dollars per share)	9.57
Outstanding at December 31, 2017, nonvested (in dollars per share)	$ 9.59	$ 10.58

Stockholders' Equity Stock- Based Compensation Expense Location (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	$ 3,518	$ 3,651	$ 3,734
Cost of Goods, Total [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	298	321	317
Cost of service sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	18	1	0
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	696	690	619
Selling and Marketing Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	780	1,027	927
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Allocated Share-based Compensation Expense	$ 1,726	$ 1,612	$ 1,871

Stockholders' Equity AOCI Disclosure (Details) - USD ($)
$ in Thousands

12 Months Ended

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Dec. 31, 2014

Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]

Stockholders' Equity Attributable to Parent

$ 105,665

$ 106,502

$ 118,176

$ 116,540

Amortization of Intangible Assets

4,312

4,956

5,526

Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent

5,492

(9,209)

(4,153)

Interest Rate Swap

Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]

Stockholders' Equity Attributable to Parent

(69)

(158)

(238)

(295)

OCI, before Reclassifications, Net of Tax, Attributable to Parent

(20)

(58)

Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent

^[1]

100

115

Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent

Accumulated Other Comprehensive (Loss) Income

Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]

Stockholders' Equity Attributable to Parent

(11,317)

(16,809)

(7,600)

(3,447)

OCI, before Reclassifications, Net of Tax, Attributable to Parent

5,415

(9,309)

(4,268)

Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent

100

^[1]

115

^[1]

Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent

5,492

(9,209)

(4,153)

Accumulated Foreign Currency Adjustment Attributable to Parent [Member]

Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]

Stockholders' Equity Attributable to Parent

(11,247)

(16,651)

(7,363)

(3,156)

OCI, before Reclassifications, Net of Tax, Attributable to Parent

5,404

(9,288)

(4,207)

Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent

^[1]

Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent

5,404

(9,288)

(4,207)

Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]

Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]

Stockholders' Equity Attributable to Parent

(1)

$ 4

OCI, before Reclassifications, Net of Tax, Attributable to Parent

(1)

(3)

Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent

^[1]

Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent

$ (1)

$ (3)

[1]	For additional information, see Note 2, "Marketable Securities", and see Note 15, "Derivative Instruments and Hedging Activities"

Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2017
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, General Business	$ 9
Foreign tax credit carry-forwards	2,958	$ 754
Income (loss) before income taxes	(9,938)	(1,970)	$ 2,666
Valuation allowance, deferred tax asset, change in amount	4,447
Valuation allowance, amount	16,014	11,567
Change in valuation allowance	3,330	7,425	1,392
Federal
Tax Credit Carryforward [Line Items]
Income (loss) before income taxes	(13,271)	(7,775)	(570)
Federal \| Research Tax Credit Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	4,329
State Tax Authority
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	243
Change in valuation allowance	3,330
State Tax Authority \| Research Tax Credit Carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	3,501
Foreign Tax Authority
Tax Credit Carryforward [Line Items]
Income (loss) before income taxes	$ 3,333	$ 5,805	$ 3,236
Accounting Standards Update 2016-09 [Member] \| Deferred Tax Assets, Tax Credit Carryforwards And Operating Loss Carryforwards [Member]
Tax Credit Carryforward [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption				$ 1,117

Income Taxes - Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Expense (Benefit) [Abstract]
Current federal tax expense (benefit)	$ (41)	$ 227	$ (555)
Deferred federal income tax expense (benefit)	6	3,197	(94)
Federal income tax expense (benefit), continuing operations	(35)	3,424	(649)
Current state and local tax expense (benefit)	36	144	120
Deferred state and local income tax expense (benefit)	0	457	765
State and local income tax expense (benefit), continuing operations	36	601	885
Current foreign tax expense (benefit)	1,857	2,770	295
Deferred foreign income tax expense (benefit)	(762)	(1,248)	(118)
Foreign income tax expense (benefit), continuing operations	1,095	1,522	177
Current income tax expense (benefit)	1,852	3,141	(140)
Deferred income tax expense (benefit)	(756)	2,406	553
Income tax expense	$ 1,096	$ 5,547	$ 413

Income Taxes - Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
United States federal corporate income tax rate	34.00%
Increase (decrease) in income taxes resulting from:
Income tax (benefit) expense at Federal statutory income tax rate	$ (3,379)	$ (670)	$ 906
State income tax expense, net of federal benefit	56	(156)	(37)
State research and development, investment credits	(435)	(363)	(317)
Non-deductible meals & entertainment	47	49	33
Non-deductible stock compensation expense	338	216	181
Non-deductible transaction costs	0	116	260
Subpart F income, net of foreign tax credits	1,171	523	61
Manufacturing deduction	0	0	(102)
Nontaxable interest income	0	(162)	(106)
Foreign tax rate differential	(902)	(1,258)	(792)
Federal research and development credits	(427)	(395)	(348)
Uncertain tax positions	189	283	(413)
Change in tax rates	8	(95)	80
Change in tax rates	926	14	(313)
Change in valuation allowance	3,330	7,425	1,392
Income tax expense	1,096	5,547	413
Foreign Research and Development Incentives [Member]
Increase (decrease) in income taxes resulting from:
Other	(22)	(45)	(59)
Other Deductions [Member]
Increase (decrease) in income taxes resulting from:
Other	(196)	(13)	(13)
SAUDI ARABIA
Increase (decrease) in income taxes resulting from:
Foreign tax rate differential	$ 0	$ 52	$ 0

Income Taxes - Income (Loss) From Continuing Operations Before Income Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income (Loss) from Operations before Income Tax Expense (Benefit) [Abstract]
Income (loss) before income taxes	$ (9,938)	$ (1,970)	$ 2,666
United States
Income (Loss) from Operations before Income Tax Expense (Benefit) [Abstract]
Income (loss) before income taxes	(13,271)	(7,775)	(570)
Foreign Tax Authority
Income (Loss) from Operations before Income Tax Expense (Benefit) [Abstract]
Income (loss) before income taxes	$ 3,333	$ 5,805	$ 3,236

Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Accounts receivable, due to allowance for doubtful accounts	$ 540	$ 1,104
Inventories	581	792
Operating loss carry-forwards	4,725	3,078
Stock-based compensation expense	696	1,231
Property and equipment, due to difference in depreciation	190	148
Research and development, alternative minimum tax credit carry-forwards	4,338	3,031
Foreign tax credit carry-forwards	2,958	754
State tax credit carry-forwards	2,958	2,277
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Warranty Reserves	495	822
Accrued expenses	334	432
Gross deferred tax assets	17,815	13,669
Less valuation allowance	(16,014)	(11,567)
Total deferred tax assets	1,801	2,102
Deferred tax liabilities:
Purchased intangible assets	(2,705)	(3,197)
Property and equipment, due to differences in depreciation	(1,681)	(2,003)
Other	(29)	(11)
Total deferred tax liabilities	(4,415)	(5,211)
Net deferred tax liability	(2,614)	(3,109)
Net deferred tax asset--non-current	20	24
Net deferred tax liability- non-current	$ (2,634)	$ (3,133)

Income Taxes Reconciliation of Unrecognized Tax Benefits (Expenses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Undistributed earnings of its foreign subsidiaries for which the Company has not provided US Deferred income taxes	$ 18,328
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	235
Unrecognized Tax Benefits	1,006	$ 815	$ 983	$ 2,487
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions	52	0	168
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	43	(131)	(116)
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions	111	293	13
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0	(330)	(1,569)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	$ (15)	$ 0	$ 0

Income Taxes Interest and penalties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accrued interest and penalties (tax) [Abstract]
Income Tax Examination, Penalties and Interest Expense	$ 67	$ 40	$ 78
Income Tax Examination, Penalties and Interest Accrued	$ 564	$ 545	$ 468

Income Taxes Tax Reform (Textual) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Valuation Allowance [Line Items]
Net tax benefit related to estimate of the provisions of the 2017 Tax Act	$ 54
Income (Loss) from Continuing Operations before Income Taxes, Foreign	7,818
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	2,958	$ 754
Valuation Allowance, Deferred Tax Asset, Explanation of Change	4,447
2017 Tax Cuts and Jobs Act [Member]
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Explanation of Change	1,780
Transition Toll Tax [Member]
Valuation Allowance [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	1,935
Valuation Allowance, Deferred Tax Asset, Explanation of Change	802
Federal statutory rate reduction from 35% to 21% [Member]
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Explanation of Change	$ 926

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended			120 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2026
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 4,312	$ 4,956	$ 5,526
Gross Carrying Amount	35,776	34,182
Accumulated Amortization	20,656	16,344	11,390
Total amortization expense	15,120	17,838
Finite-lived Intangible Assets Acquired	133
Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	17,912	16,888
Accumulated Amortization	8,347	6,431
Total amortization expense	9,565	10,457
Distribution rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,385	4,122
Accumulated Amortization	1,450	1,180
Total amortization expense	2,935	2,942
Internally developed software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,324	2,301
Accumulated Amortization	2,206	1,904
Total amortization expense	118	397
Proprietary content
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,223	7,960
Accumulated Amortization	5,908	4,431
Total amortization expense	2,315	3,529
Intellectual property
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,284	2,284
Accumulated Amortization	2,284	2,056
Total amortization expense	0	228
Off-Market Favorable Lease
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	648	627
Accumulated Amortization	461	342
Total amortization expense	187	285
Cost of service sales [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	1,477	2,068	1,978
General and Administrative Expense [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 2,835	$ 2,888	$ 3,548
Acquisition Prior to 2013 [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Headland Media Limited \| Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Headland Media Limited \| Distribution rights
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Headland Media Limited \| Internally developed software
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Headland Media Limited \| Proprietary Content [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Videotel \| Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	8 years
Videotel \| Internally developed software
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years
Videotel \| Off-Market Favorable Lease
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Videotel \| Proprietary Content [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Q1 2017 Acquisition [Member] \| Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Finite-lived Intangible Assets Acquired	$ 100
Business Combination, Contingent Consideration Arrangements, Description	$ 33
Scenario, Forecast [Member] \| Maximum \| Q1 2017 Acquisition [Member]
Finite-Lived Intangible Assets [Line Items]
Business Combination, Contingent Consideration Arrangements, Description				$ 114

Goodwill and Intangible Assets - Amortization and Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets, Gross (Excluding Goodwill)	$ 15,120	$ 17,838
Amortization expense	4,312	4,956	$ 5,526
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2018	4,082
2019	3,122
2020	2,292
2021	2,292
2022	1,505
Thereafter	1,827
Total amortization expense	15,120	17,838
Goodwill [Roll Forward]
Balance at January 1	31,343	36,747
Foreign currency translation adjustment	2,529	(5,404)
Balance at December 31	33,872	31,343	36,747
Amortization expense	(4,312)	$ (4,956)	$ (5,526)
Finite-lived Intangible Assets Acquired	133
Finite-Lived Intangible Assets, Translation Adjustments	$ 1,461

Goodwill and Intangible Assets Intangible Asset Remaining Useful Life (Details)	12 Months Ended
	Dec. 31, 2017
Weighted Average [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	4 years 2 months
Subscriber relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	4 years 10 months 18 days
Distribution rights
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	10 years 3 months 18 days
Internally developed software
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	4 months 24 days
Proprietary content
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	1 year 6 months
Off-Market Favorable Lease
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	1 year 6 months

Goodwill and Intangible Assets Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill Rollforward [Abstract]
Goodwill	$ 33,872	$ 31,343	$ 36,747
Goodwill, Foreign Currency Translation Gain (Loss)	$ 2,529	$ (5,404)

401(k) Plan (Details) - USD ($) $ in Thousands	12 Months Ended
401(k) Plan (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Defined contribution plan, employer matching contribution, percent of match	50.00%
Defined contribution plan, employer matching contribution, percent	6.00%
Defined contribution plan, vesting period	5 years
Defined contribution plan, employer matching contribution, amount	$ 683	$ 671	$ 608

Business and Credit Concentrations (Details)	12 Months Ended
Business and Credit Concentrations (Details)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Canadian Customer [Member]
Schedule of significant portions of the Company's net sales
Net sales, percentage			17.00%
Sales Revenue, Net [Member]
Concentration Risk [Line Items]
Customers that account for 10% or more of consolidated net sales	0	0	0
Accounts Receivable [Member]
Concentration Risk [Line Items]
Customers that account for 10% or more of consolidated net sales	one

Segment Reporting (Details Textual)	12 Months Ended
Segment Reporting (Details Textual)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Mobile Connectivity [Member] \| Mobile Comm Product Sales [Member]
Segment Reporting Information [Line Items]
Percent of Consolidated Net Sales	20.00%	23.00%	23.00%
Mobile Connectivity [Member] \| VSAT Airtime Service Sales [Member]
Segment Reporting Information [Line Items]
Percent of Consolidated Net Sales	41.00%	37.00%	35.00%
Mobile Connectivity [Member] \| Training and Content Sales [Member]
Segment Reporting Information [Line Items]
Percent of Consolidated Net Sales	20.00%	20.00%	21.00%
Intertial Navigation [Member] \| FOG System Sales [Member]
Segment Reporting Information [Line Items]
Percent of Consolidated Net Sales	13.00%	10.00%	10.00%
Non-US [Member]
Segment Reporting Information [Line Items]
Percent of consolidated long-lived tangible assets (less than)	10.00%	10.00%
Percent of Consolidated Net Sales	62.00%	63.00%	67.00%
CANADA
Segment Reporting Information [Line Items]
Percent of Consolidated Net Sales		11.00%	10.00%

Segment Reporting Segments - Net Sales and Operating Earnings (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Revenue, Net									$ 160,088	$ 176,122	$ 184,634
Operating Income (Loss)	$ (1,125)	$ (1,801)	$ (1,368)	$ (4,470)	$ (268)	$ 3,013	$ (693)	$ (3,374)	(8,764)	(1,322)	3,208
Net interest and other expense									(1,174)	(648)	(542)
(Loss) income before income tax expense									(9,938)	(1,970)	2,666
Mobile Connectivity and Intertial Navigation Combined [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									7,890	15,313	17,393
Other Segments [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)									(16,654)	(16,635)	(14,185)
Operating Segments [Member] \| Mobile Connectivity [Member]
Segment Reporting Information [Line Items]
Revenue, Net									132,227	141,507	147,809
Operating Income (Loss)									7,334	10,041	9,459
Operating Segments [Member] \| Intertial Navigation [Member]
Segment Reporting Information [Line Items]
Revenue, Net									27,861	34,615	36,825
Operating Income (Loss)									$ 556	$ 5,272	$ 7,934

Segment Reporting Depreciation and Amortization Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Depreciation	$ 6,725	$ 7,608	$ 7,193
Amortization expense	4,312	4,956	5,526
Other Segments [Member]
Segment Reporting Information [Line Items]
Depreciation	77	461	389
Amortization expense	0	0	0
Mobile Connectivity [Member]
Segment Reporting Information [Line Items]
Depreciation	5,720	6,084	5,843
Amortization expense	4,312	4,956	5,526
Intertial Navigation [Member]
Segment Reporting Information [Line Items]
Depreciation	928	1,063	961
Amortization expense	$ 0	$ 0	$ 0

Share Buyback Program (Details) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Program shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Nov. 26, 2008 shares
Share Buyback Program (Textual) [Abstract]
Common stock available for repurchase (in shares) \| shares	341			1,000
Number of other repurchase programs outstanding \| Program	0
Number of stock repurchase programs other expired \| Program	0
Stock repurchased during period, shares \| shares	0	0	0
Stock repurchased during period, value \| $	$ 0	$ 0	$ 0

Fair Value Measurements (Details) - USD ($)
$ in Thousands

Dec. 31, 2017

Dec. 31, 2016

Schedule of assets and liabilities measured at fair value on recurring basis

Interest rate swaps

^[1]

$ 69

$ 158

Money market mutual funds

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

7,318

21,848

United States treasuries

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

1,001

Certificates of deposit

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

3,864

Level 1

Schedule of assets and liabilities measured at fair value on recurring basis

Interest rate swaps

^[1]

Level 1 | Money market mutual funds

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

7,318

21,848

Level 1 | United States treasuries

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

1,001

Level 1 | Certificates of deposit

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

3,864

Level 2

Schedule of assets and liabilities measured at fair value on recurring basis

Interest rate swaps

^[1]

158

Level 2 | Money market mutual funds

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

Level 2 | United States treasuries

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

Level 2 | Certificates of deposit

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

Level 3

Schedule of assets and liabilities measured at fair value on recurring basis

Interest rate swaps

^[1]

Level 3 | Money market mutual funds

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

Level 3 | United States treasuries

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

$ 0

Level 3 | Certificates of deposit

Schedule of assets and liabilities measured at fair value on recurring basis

Assets measured at fair value

^[2]

$ 0

[1]

[2]

Market approach—prices and other relevant information generated by market transactions involving identical or comparable assets.

Derivative Instruments and Hedging Activities (Details Textual) - Interest Rate Swap	12 Months Ended
	Dec. 31, 2017 Swap_Agreements
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Mortgage loan expiry date	Apr. 16, 2019
Mortgages
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Number of Interest rate swap agreements	2
Mortgages \| First Half of Mortgage
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Strike Rate	5.91%
Mortgages \| Second Half of Mortgage
Derivative Instruments and Hedging Activities (Textual) [Abstract]
Strike Rate	6.07%

Derivative Instruments and Hedging Activities (Details) - Interest Rate Swap $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
First Half of Mortgage
Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk
Notional (in thousands)	$ 1,389
Asset (Liability)	$ (33)
Effective Date	Apr. 01, 2010
Maturity Date	Apr. 01, 2019
Derivative, Type of Interest Rate Paid on Swap	1-month LIBOR
Second Half of Mortgage
Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk
Notional (in thousands)	$ 1,389
Asset (Liability)	$ (36)
Effective Date	Apr. 01, 2010
Maturity Date	Apr. 01, 2019
Derivative, Type of Interest Rate Paid on Swap	1-month LIBOR
Mortgages \| First Half of Mortgage
Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk
Strike Rate	5.91%
Mortgages \| Second Half of Mortgage
Schedule of interest rate derivatives designated as cash flow hedges of interest rate risk
Strike Rate	6.07%

Quarterly Financial Results (Unaudited) (Details) - USD ($)
$ / shares in Units, $ in Thousands

3 Months Ended

12 Months Ended

Dec. 31, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2016

Sep. 30, 2016

Jun. 30, 2016

Mar. 31, 2016

Dec. 31, 2017

Dec. 31, 2016

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Product sales

$ 13,613

$ 14,169

$ 14,323

$ 14,863

$ 18,611

$ 19,020

$ 20,062

$ 15,382

$ 56,968

$ 73,075

$ 76,213

Service sales

25,365

26,281

26,126

25,348

25,319

26,826

25,904

24,998

103,120

103,047

108,421

Cost of Goods Sold

8,062

9,578

9,295

10,539

11,674

11,001

12,989

10,670

37,474

46,334

47,404

Cost of Services

12,956

13,374

13,094

13,268

13,140

13,576

13,259

12,991

52,692

52,966

54,816

Operating Expenses

19,085

19,299

19,428

20,874

19,384

18,256

20,411

20,093

Operating Income (Loss)

(1,125)

(1,801)

(1,368)

(4,470)

(268)

3,013

(693)

(3,374)

(8,764)

(1,322)

3,208

Net loss

$ (1,685)

$ (2,438)

$ (2,026)

$ (4,885)

$ (6,783)

$ 2,863

$ (806)

$ (2,791)

$ (11,034)

$ (7,517)

$ 2,253

Net (loss) income per share:

Basic (in dollars per share)

$ (0.10)

^[1]

$ (0.15)

^[1]

$ 0

^[1]

$ (0.30)

^[1]

$ (0.43)

^[1]

$ 0.18

^[1]

$ 0

^[1]

$ (0.18)

^[1]

$ (0.67)

$ (0.47)

$ 0.14

Diluted (in dollars per share)

$ (0.10)

^[1]

$ (0.15)

^[1]

$ 0

^[1]

$ (0.30)

^[1]

$ (0.43)

^[1]

$ 0.18

^[1]

$ 0

^[1]

$ (0.18)

^[1]

$ (0.67)

$ (0.47)

$ 0.14

[1]	Net (loss) income per share is computed independently for each of the quarters. Therefore, the net (loss) income per share for the four quarters may not equal the annual net (loss) income per share data.