Brightcove (BCOV) 10-K 28 Feb 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 23, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Trading Symbol	BCOV
Entity Registrant Name	BRIGHTCOVE INC
Entity Central Index Key	1,313,275
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,952,140
Entity Public Float			$ 130,976,463

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 26,132	$ 36,813
Accounts receivable, net of allowance of $146 and $154 at December 31, 2017 and December 31, 2016, respectively	25,236	21,575
Prepaid expenses	3,991	3,729
Other current assets	3,045	2,168
Total current assets	58,404	64,285
Property and equipment, net	9,143	9,264
Intangible assets, net	8,236	10,970
Goodwill	50,776	50,776
Deferred tax asset	87	121
Other assets	969	1,008
Total assets	127,615	136,424
Current liabilities:
Accounts payable	6,142	5,327
Accrued expenses	13,621	15,705
Capital lease liability	228	489
Equipment financing	26	307
Deferred revenue	39,370	34,665
Total current liabilities	59,387	56,493
Deferred revenue, net of current portion	244	91
Other liabilities	1,228	1,644
Total liabilities	60,859	58,228
Commitments and contingencies (Note 5)
Stockholders' equity:
Undesignated preferred stock, $0.001 par value; 5,000,000 shares authorized; no shares issued
Common stock, $0.001 par value; 100,000,000 shares authorized; 34,933,408 and 34,143,148 shares issued at December 31, 2017 and 2016, respectively	35	34
Additional paid-in capital	238,700	230,788
Treasury stock, at cost; 135,000 shares	(871)	(871)
Accumulated other comprehensive loss	(809)	(1,172)
Accumulated deficit	(170,299)	(150,583)
Total stockholders' equity	66,756	78,196
Total liabilities and stockholders' equity	$ 127,615	$ 136,424

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Allowance for accounts receivable	$ 146	$ 154
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	34,933,408	34,143,148
Treasury stock, shares	135,000	135,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue:
Subscription and support revenue	$ 143,159	$ 142,022	$ 131,010
Professional services and other revenue	12,754	8,244	3,696
Total revenue	155,913	150,266	134,706
Cost of revenue:
Cost of subscription and support revenue	50,664	48,011	41,735
Cost of professional services and other revenue	13,954	7,836	4,742
Total cost of revenue	64,618	55,847	46,477
Gross profit	91,295	94,419	88,229
Operating expenses:
Research and development	31,850	30,171	29,302
Sales and marketing	57,294	54,038	45,795
General and administrative	21,847	19,167	19,862
Merger-related		21	201
Total operating expenses	110,991	103,397	95,160
Loss from operations	(19,696)	(8,978)	(6,931)
Other income (expense):
Interest income	124	99	6
Interest expense	(26)	(63)	(96)
Other income (expense), net	449	(634)	(168)
Total other income (expense), net	547	(598)	(258)
Loss before income taxes	(19,149)	(9,576)	(7,189)
Provision for income taxes	370	410	391
Net loss	$ (19,519)	$ (9,986)	$ (7,580)
Net loss per share - basic and diluted	$ (0.57)	$ (0.30)	$ (0.23)
Weighted-average number of common shares used in computing net loss per share - basic and diluted	34,376	33,189	32,598
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	$ 2,734	$ 3,116	$ 3,112
Cost of Subscription and Support Revenue [Member]
Stock-based compensation included in above line items:
Stock-based compensation	439	324	181
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	2,031	2,031	2,031
Cost of Professional Services and Other Revenue [Member]
Stock-based compensation included in above line items:
Stock-based compensation	251	217	181
Research and Development [Member]
Stock-based compensation included in above line items:
Stock-based compensation	1,563	1,275	1,392
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	11	126	126
Sales and Marketing [Member]
Stock-based compensation included in above line items:
Stock-based compensation	2,750	2,320	2,155
Amortization of acquired intangible assets included in above line items:
Amortization of acquired intangible assets	692	959	955
General and Administrative [Member]
Stock-based compensation included in above line items:
Stock-based compensation	$ 2,240	$ 1,876	$ 2,105

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net loss	$ (19,519)	$ (9,986)	$ (7,580)
Other comprehensive (loss) income:
Foreign currency translation adjustments	363	(284)	(112)
Comprehensive loss	$ (19,156)	$ (10,270)	$ (7,692)

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2014	$ 80,763	$ 32	$ 214,524		$ (776)	$ (133,017)
Beginning Balance, shares at Dec. 31, 2014		32,424,554
Issuance of common stock upon exercise of stock options	129		129
Issuance of common stock upon exercise of stock options, shares		58,449
Issuance of common stock pursuant to restricted stock units	1	$ 1
Issuance of common stock pursuant to restricted stock units, shares		327,628
Return of common stock issued pursuant to settlement agreement	(871)			$ (871)
Treasury shares, beginning Balance at Dec. 31, 2014				(135,000)
Withholding tax on restricted stock units vesting	$ (209)		$ (209)
Withholding tax on restricted stock units vesting, shares	0	0	0	0	0	0
Stock-based compensation expense	$ 6,014		$ 6,014
Foreign currency translation adjustment	(112)				$ (112)
Net loss	(7,580)					$ (7,580)
Ending Balance at Dec. 31, 2015	78,135	$ 33	220,458	$ (871)	$ (888)	$ (140,597)
Ending Balance, shares at Dec. 31, 2015		32,810,631
Treasury stock, Ending Balance at Dec. 31, 2015				(135,000)
Issuance of common stock upon exercise of stock options	4,555	$ 1	4,554
Issuance of common stock upon exercise of stock options, shares		886,085
Issuance of common stock pursuant to restricted stock units, shares		425,904
Withholding tax on restricted stock units vesting	$ (405)		$ (405)
Withholding tax on restricted stock units vesting, shares	0	0	0	0	0	0
Stock-based compensation expense	$ 6,181		$ 6,181
Issuance of common stock upon net exercise of stock warrants	0	$ 0	0	$ 0	$ 0	$ 0
Issuance of common stock upon net exercise of stock warrants, shares		20,528
Foreign currency translation adjustment	(284)				(284)
Net loss	(9,986)					(9,986)
Ending Balance at Dec. 31, 2016	$ 78,196	$ 34	230,788	$ (871)	$ (1,172)	$ (150,583)
Ending Balance, shares at Dec. 31, 2016		34,143,148
Treasury stock, Ending Balance at Dec. 31, 2016	(135,000)			(135,000)
Issuance of common stock upon exercise of stock options	$ 520		520
Issuance of common stock upon exercise of stock options, shares		229,127
Issuance of common stock pursuant to restricted stock units		$ 1	(1)
Issuance of common stock pursuant to restricted stock units, shares		561,133
Withholding tax on restricted stock units vesting	$ (268)		$ (268)
Withholding tax on restricted stock units vesting, shares	0	0	0	0	0	0
Stock-based compensation expense	$ 7,464		$ 7,464
Foreign currency translation adjustment	363				$ 363
Net loss	(19,519)					$ (19,519)
Ending Balance at Dec. 31, 2017	$ 66,756	$ 35	238,700	$ (871)	$ (809)	(170,299)
Ending Balance, shares at Dec. 31, 2017		34,933,408
Treasury stock, Ending Balance at Dec. 31, 2017	(135,000)			(135,000)
Impact of adoption of ASU 2016-09 as of January 1, 2017			$ 197			$ (197)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating activities
Net loss	$ (19,519)	$ (9,986)	$ (7,580)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	7,257	7,796	8,687
Stock-based compensation	7,243	6,012	6,014
Deferred income taxes	38	(47)	(27)
Provision for reserves on accounts receivable	203	230	408
Loss on disposal of equipment		155	68
Gain from settlement of escrow claim			(871)
Changes in assets and liabilities:
Accounts receivable	(3,811)	(559)	(157)
Prepaid expenses and other current assets	(1,484)	(894)	680
Other assets	56	(299)	(256)
Accounts payable	1,758	733	1,751
Accrued expenses	(2,930)	3,172	137
Deferred revenue	4,748	4,764	227
Net cash (used in) provided by operating activities	(6,441)	11,077	9,081
Investing activities
Cash paid for purchase of intangible asset		(300)
Purchases of property and equipment, net of returns (Note 2)	(1,102)	(1,307)	(1,390)
Capitalized internal-use software costs	(3,010)	(3,887)	(1,456)
Decrease in restricted cash		201
Net cash used in investing activities	(4,112)	(5,293)	(2,846)
Financing activities
Proceeds from exercise of stock options	520	4,555	129
Payments of withholding tax on RSU vesting	(268)	(405)	(209)
Proceeds from equipment financing		604	1,704
Payments on equipment financing (Note 8)	(307)	(271)	(1,704)
Payments under capital lease obligation	(489)	(850)	(1,332)
Net cash (used in) provided by financing activities	(544)	3,633	(1,412)
Effect of exchange rate changes on cash and cash equivalents	416	(241)	(102)
Net (decrease) increase in cash and cash equivalents	(10,681)	9,176	4,721
Cash and cash equivalents at beginning of period	36,813	27,637	22,916
Cash and cash equivalents at end of period	26,132	36,813	27,637
Supplemental disclosure of cash flow information
Cash paid for income taxes	500	351	263
Cash paid for interest	26	63	96
Supplemental disclosure of non-cash operating activities
Capitalization of stock-based compensation related to internal use software	221	169
Supplemental disclosure of non-cash investing and financing activities
Unpaid internal-use software costs	28	20	38
Unpaid purchases of property and equipment	$ 138	$ 83	$ 1,177

Business Description

Business Description	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business Description	1. Business Description Brightcove Inc. (the Company) is a leading global provider of cloud services for video which enable its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. The Company is headquartered in Boston, Massachusetts and was incorporated in the state of Delaware on August 24, 2004. At December 31, 2017, the Company had nine wholly-owned subsidiaries: Brightcove UK Ltd, Brightcove Singapore Pte. Ltd., Brightcove Korea, Brightcove Australia Pty Ltd, Brightcove Holdings, Inc., Brightcove Kabushiki Kaisha (Brightcove KK), Zencoder Inc. (Zencoder), Brightcove FZ-LLC,

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies The accompanying consolidated financial statements reflect the application of certain significant accounting policies as described below and elsewhere in these notes to the consolidated financial statements. The Company believes that a significant accounting policy is one that is both important to the portrayal of the Company’s financial condition and results, and requires management’s most difficult, subjective, or complex judgments, often as the result of the need to make estimates about the effect of matters that are inherently uncertain. Basis of Presentation The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). Any reference in these notes to applicable guidance is meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting Standards Codification (ASC) and Accounting Standards Update (ASU) of the Financial Accounting Standards Board (FASB). Use of Estimates and Uncertainties The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts expensed during the reporting period. Significant estimates relied upon in preparing these consolidated financial statements include revenue recognition and revenue reserves, allowances for doubtful accounts, contingent liabilities, the expensing and capitalization of research and development costs for internal-use Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results may differ from management’s estimates if these results differ from historical experience, or other assumptions do not turn out to be substantially accurate, even if such assumptions are reasonable when made. The Company is subject to a number of risks and uncertainties common to companies in similar industries and stages of development including, but not limited to, rapid technological changes, competition from substitute products and services from larger companies, customer concentration, management of international activities, protection of proprietary rights, patent litigation, and dependence on key individuals. Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. Subsequent Events Considerations The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. The Company has evaluated all subsequent events and determined that there are no material recognized or unrecognized subsequent events. Foreign Currency Translation The reporting currency of the Company is the U.S. dollar. The functional currency of the Company’s foreign subsidiaries is the local currency of each subsidiary. All assets and liabilities in the balance sheets of entities whose functional currency is a currency other than the U.S. dollar are translated into U.S. dollar equivalents at exchange rates as follows: (1) asset and liability accounts at period-end Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. Management determines the appropriate classification of investments at the time of purchase, and re-evaluates Cash and cash equivalents primarily consist of cash on deposit with banks and amounts held in interest-bearing money market accounts. Cash equivalents are carried at cost, which approximates their fair market value. Cash and cash equivalents as of December 31, 2017 and 2016 consist of the following: December 31, 2017 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 17,972 $ 17,972 $ 17,972 Money market funds Demand 8,160 8,160 8,160 Total cash and cash equivalents $ 26,132 $ 26,132 $ 26,132 December 31, 2016 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 23,942 $ 23,942 $ 23,942 Money market funds Demand 12,871 12,871 12,871 Total cash and cash equivalents $ 36,813 $ 36,813 $ 36,813 Disclosure of Fair Value of Financial Instruments The carrying amounts of the Company’s financial instruments, which include cash, cash equivalents, accounts receivable, accounts payable, accrued expenses, capital lease liabilities and equipment financing, approximated their fair values at December 31, 2017 and 2016, due to the short-term nature of these instruments. The Company has evaluated the estimated fair value of financial instruments using available market information and management’s estimates. The use of different market assumptions and/or estimation methodologies could have a significant impact on the estimated fair value amounts. See Note 4 for further discussion. Revenue Recognition The Company primarily derives revenue from the sale of its online video platform, which enables its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. Revenue is derived from three primary sources: (1) the subscription to its technology and related support; (2) hosting, bandwidth and encoding services; and (3) professional services, which include initiation, set-up The Company recognizes revenue when all of the following conditions are satisfied: (1) there is persuasive evidence of an arrangement; (2) the service has been provided to the customer; (3) the collection of fees is probable; and (4) the amount of fees to be paid by the customer is fixed or determinable. The Company’s subscription arrangements provide customers the right to access its hosted software applications. Customers do not have the right to take possession of the Company’s software during the hosting arrangement. Accordingly, the Company recognizes revenue in accordance with ASC 605, Revenue Recognition non-cancellable. month-to-month Revenue recognition commences upon the later of when the application is placed in a production environment, or when all revenue recognition criteria have been met. Professional services and other revenue sold on a stand-alone basis are recognized as the services are performed, subject to any refund or other obligation. Deferred revenue includes amounts billed to customers for which revenue has not been recognized, and primarily consists of the unearned portion of annual software subscription and support fees, and deferred professional service fees. Revenue is presented net of any taxes collected from customers. Multiple-Element Arrangements The Company periodically enters into multiple-element service arrangements that include platform subscription fees, support fees, and, in certain cases, other professional services. The Company assesses arrangements with multiple deliverables under ASU No. 2009-13, Revenue Recognition (Topic 605), Multiple-Deliverable Revenue Arrangements — a Consensus of the FASB Emerging Issues Task Force, 2009-13, In order to treat deliverables in a multiple-element arrangement as separate units of accounting, the deliverables must have stand-alone value upon delivery. If the deliverables have stand-alone value upon delivery, the Company accounts for each deliverable separately. Subscription services have stand-alone value as such services are often sold separately. In determining whether professional services have stand-alone value, the Company considers the following factors for each professional services agreement: availability of the services from other vendors, the nature of the professional services, the timing of when the professional services contract was signed in comparison to the subscription service start date, and the contractual dependence of the subscription service on the customer’s satisfaction with the professional services work. To date, the Company has concluded that all of the professional services included in multiple-element arrangements executed have stand-alone value. When multiple deliverables included in an arrangement are separated into different units of accounting, the arrangement consideration is allocated to the identified separate units based on a relative selling price hierarchy. The Company determines the relative selling price for a deliverable based on its vendor-specific objective evidence of fair value (VSOE), if available, or its best estimate of selling price (BESP), if VSOE is not available. The Company has determined that third-party evidence of selling price (TPE) is not a practical alternative due to differences in its service offerings compared to other parties and the availability of relevant third-party pricing information. The amount of revenue allocated to delivered items is limited by contingent revenue, if any. The Company has not established VSOE for its offerings due to the lack of pricing consistency, the introduction of new services and other factors. Accordingly, the Company uses its BESP to determine the relative selling price. The Company determines BESP by considering its overall pricing objectives and market conditions. Significant pricing practices taken into consideration include the Company’s discounting practices, the size and volume of the Company’s transactions, the geographic area where services are sold, price lists, historical contractually stated prices and prior relationships and future subscription service sales with certain classes of customers. The determination of BESP is made through consultation with and approval by the Company’s management, taking into consideration the go-to-market go-to-market Cost of Revenue Cost of revenue primarily consists of costs related to supporting and hosting the Company’s product offerings and delivering professional services. These costs include salaries, benefits, incentive compensation and stock-based compensation expense related to the management of the Company’s data centers, customer support team and the Company’s professional services staff, in addition to third-party service provider costs such as data center and networking expenses, allocated overhead, amortization of capitalized internal-use Allowance for Doubtful Accounts The Company offsets gross trade accounts receivable with an allowance for doubtful accounts. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing accounts receivable and is based upon historical loss patterns, the number of days that billings are past due, and an evaluation of the potential risk of loss associated with specific accounts. Account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. Provisions for allowances for doubtful accounts are recorded in general and administrative expense. Below is a summary of the changes in the Company’s allowance for doubtful accounts for the years ended December 31, 2017, 2016 and 2015: Balance at Provision Write-offs Balance at Year ended December 31, 2017 $ 154 $ 203 $ (211 ) $ 146 Year ended December 31, 2016 332 230 (408 ) 154 Year ended December 31, 2015 181 408 (257 ) 332 Off-Balance The Company has no significant off-balance For the years ended December 31, 2017, 2016 and 2015, no individual customer accounted for more than 10% of total revenue. As of December 31, 2017 and 2016, no individual customer accounted for more than 10% of net accounts receivable. Concentration of Other Risks The Company is dependent on certain content delivery network providers who provide digital media delivery functionality enabling the Company’s on-demand end-users. Software Development Costs Costs incurred to develop software applications used in the Company’s on-demand internal-use internal-use internal-use During the years ended December 31, 2017, 2016 and 2015, the Company capitalized $3,239, $4,038 and $1,488, respectively, of internal-use internal-use Property and Equipment Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the related asset. Upon retirement or sale, the cost of assets disposed of, and the related accumulated depreciation, are removed from the accounts, and any resulting gain or loss is included in the determination of net income or loss in the period of retirement. Property and equipment consists of the following: Estimated Useful Life (in Years) December 31, 2017 2016 Computer equipment 3 17,157 $ 18,750 Software 3 - 6 17,996 14,648 Furniture and fixtures 5 2,396 1,995 Leasehold improvements Shorter of lease 1,366 1,202 38,915 36,595 Less accumulated depreciation and amortization 29,772 27,331 $ 9,143 $ 9,264 Depreciation and amortization expense, which includes amortization expense associated with capitalized internal-use Expenditures for maintenance and repairs are charged to expense as incurred, whereas major improvements are capitalized as additions to property and equipment. On December 31, 2015, the Company entered into an equipment financing agreement with a lender (the “December 2015 Equipment Financing Agreement”) to finance the purchase of $604 in computer equipment. In February 2016, the Company drew down $604 under the December 2015 Equipment Financing Agreement. Refer to Note 8 for a discussion of the equipment financing. On December 31, 2016, the Company disposed of a cost value of $1.9 million in computer equipment in connection with the closure of certain facilities for the purpose of consolidating its data centers. The Company recorded cost of revenue of $845, of which $695 represented the settlement amount due upon signing a termination agreement relating to the facilities and $150 represented a loss on disposal of assets in connection with the closure of the facilities. Long-Lived Assets The Company reviews long-lived assets and certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. During this review, the Company re-evaluates For the years ended December 31, 2017, 2016 and 2015, the Company has not identified any impairment of its long-lived assets. Business Combinations The Company records tangible and intangible assets acquired and liabilities assumed in business combinations under the purchase method of accounting. Amounts paid for each acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. The Company then allocates the purchase price in excess of net tangible assets acquired to identifiable intangible assets based on detailed valuations that use information and assumptions provided by management. Any excess purchase price over the fair value of the net tangible and intangible assets acquired and liabilities assumed is allocated to goodwill. If the fair value of the assets acquired exceeds the purchase price, the excess is recognized as a gain. Significant management judgments and assumptions are required in determining the fair value of acquired assets and liabilities, particularly acquired intangible assets. The valuation of purchased intangible assets is based upon estimates of the future performance and cash flows from the acquired business. Each asset is measured at fair value from the perspective of a market participant. If different assumptions are used, it could materially impact the purchase price allocation and adversely affect our results of operations, financial condition and cash flows. Intangible Assets and Goodwill Intangible assets that have finite lives are amortized over their estimated useful lives based on the pattern of consumption of the economic benefit or, if that pattern cannot be readily determined, on a straight-line basis and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, as discussed above. Goodwill is not amortized, but is evaluated for impairment annually, or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In assessing the recoverability of goodwill, the Company must make assumptions regarding the estimated future cash flows, and other factors, to determine the fair value of these assets. If these estimates or their related assumptions change in the future, the Company may be required to record impairment charges against these assets in the reporting period in which the impairment is determined. The Company has determined, based on its organizational structure, that it had one reporting unit as of December 31, 2017 and 2016. For goodwill, the impairment evaluation includes a comparison of the carrying value of the reporting unit to the fair value of the reporting unit. If the reporting unit’s estimated fair value exceeds the reporting unit’s carrying value, no impairment of goodwill exists. If the fair value of the reporting unit does not exceed its carrying value, then further analysis would be required to determine the amount of the impairment, if any. In accordance with ASU No. 2011-08, Intangibles — Goodwill and Other (Topic 350) Testing Goodwill for Impairment two-phase Comprehensive Income (Loss) Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions, other events, and circumstances from non-owner Net Loss per Share The Company calculates basic and diluted net loss per common share by dividing the net loss by the weighted-average number of common shares outstanding during the period. The Company has excluded (a) all unvested restricted shares that are subject to repurchase and (b) the Company’s other potentially dilutive shares, which include warrants to purchase common stock and outstanding common stock options and unvested restricted stock units, from the weighted-average number of common shares outstanding as their inclusion in the computation for all periods would be anti-dilutive due to net losses incurred. The following potentially dilutive common shares have been excluded from the computation of dilutive net loss per share as of December 31, 2017, 2016 and 2015, as their effect would have been antidilutive: Year Ended December 31, 2017 2016 2015 Options outstanding 4,127 4,291 4,139 Restricted stock units outstanding 2,050 1,668 1,043 Warrants — 19 28 Income Taxes The Company accounts for income taxes in accordance with the asset and liability method. Under this method, deferred tax assets and liabilities are recognized based on temporary differences between the financial reporting and income tax bases of assets and liabilities using statutory rates. In addition, this method requires a valuation allowance against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company accounts for uncertain tax positions recognized in the consolidated financial statements by prescribing a more-likely-than-not Stock-Based Compensation At December 31, 2017, the Company had four stock-based compensation plans, which are more fully described in Note 6. For stock options issued under the Company’s stock-based compensation plans, the fair value of each option grant is estimated on the date of grant. For service-based options, the Company recognizes compensation expense on a straight-line basis over the requisite service period of the award. For restricted stock units issued under the Company’s stock-based compensation plans, the fair value of each grant is calculated based on the Company’s stock price on the date of grant. The fair value of each option grant issued under the Company’s stock-based compensation plans was estimated using the Black-Scholes option-pricing model. The expected volatility of options granted has been determined using a weighted-average of the historical volatility measures of a peer group of companies that issued options with substantially similar terms as well as the historical volatility of the Company’s own common stock. The expected life of options has been determined utilizing the “simplified method”. The simplified method is based on the average of the vesting tranches and the contractual life of each grant. The risk-free interest rate is based on a treasury instrument whose term is consistent with the expected life of the stock options. The Company has not paid, and does not anticipate paying, cash dividends on its common stock; therefore, the expected dividend yield is assumed to be zero. The weighted-average fair value of options granted during the years ended December 31, 2017, 2016 and 2015, was $3.08, $4.01 and $3.10 per share, respectively. The weighted-average assumptions utilized to determine such values are presented in the following table: Year Ended December 31, 2017 2016 2015 Risk-free interest rate 2.08 % 1.75 % 1.96 % Expected volatility 42 % 45 % 46 % Expected life (in years) 6.1 6.2 6.2 Expected dividend yield — — — For the years ended December 31, 2017, 2016 and 2015, total stock-based compensation expense was $7,243, $6,012 and $6,014, respectively. As of December 31, 2017, there was $18,232 of total unrecognized stock-based compensation expense related to stock based awards that is expected to be recognized over a weighted-average period of 2.06 years. In July 2017, the Company entered into a separation agreement with its former Chief Executive Officer (“CEO”), which accelerated the vesting schedule of certain existing stock-based awards held by the CEO. The incremental stock-based compensation expense as a result of the modification of these stock-based awards was $186 for the year ended December 31, 2017. Further, the vesting schedule of certain other stock-based awards held by the CEO accelerates upon a change in control of the Company on or prior to December 31, 2017, which would result in an additional $220 of stock-based compensation expense upon such change in control. As there was not a change in control of the Company, the additional stock-based compensation was not recognized. On January 1, 2017, the Company adopted ASU 2016-09. ASU 2016-09 identifies additional paid-in-capital by Prior to the adoption of ASU 2016-09 pre-vesting The Company accounts for transactions in which services are received from non-employees non-employee Equity-Based Payments to Non-Employees, non-employees For the years ended December 31, 2017, 2016 and 2015, stock-based compensation expense for stock options granted to non-employees See Note 6 for a summary of the stock option and restricted stock activity under the Company’s stock-based compensation plans for the year ended December 31, 2017. Advertising Costs Advertising costs are charged to operations as incurred. The Company incurred advertising costs of $2,485, $2,137 and $2,081 for the years ended December 31, 2017, 2016 and 2015, respectively. Recent Accounting Pronouncements Revenue Recognition In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers , cumulative catch-up adjustment ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of Effective Date The Company will adopt ASC 606 on January 1, 2018. The Company has elected to apply the modified retrospective method of adoption. The adoption of ASC 606 is expected to have a material effect on the Company’s consolidated financial statements. In addition to the enhanced footnote disclosures related to customer contracts, the Company anticipates that the most significant impact of the new standard will relate to variable consideration and costs to obtain a contract. In order to complete this assessment, the Company is continuing to update and enhance its internal accounting systems and internal controls over financial reporting. Variable Consideration Contracts for premium customers generally provide the customer with a maximum annual level of entitlements and provide the rate at which the customer must pay for actual usage above the annual entitlement allowance. Under ASC 605, if usage exceeds the annual allowance level for a particular customer arrangement, the associated revenue is recognized in the period that the additional usage occurs. Under ASC 606, when the transaction price includes a variable amount, an entity is required to estimate the consideration that is expected to be received for a particular customer arrangement. The Company will evaluate variable consideration for usage based fees at contract inception and re-evaluate Costs to Obtain a Contract Commissions are paid to internal sales representatives as compensation for obtaining contracts. Under ASC 606, the Company will capitalize commissions that are incremental as a result of costs incurred to obtain a customer contract if those costs are not within the scope of another topic within the accounting literature and meet the specified criteria. Assets recognized for costs to obtain a contract will be amortized over the period of performance for the underlying customer contracts. The commission expense on contracts with new customers was previously recorded over the respective contract term. Under ASC 606, the commission expense on contracts with new customers will be recorded over the average life of a customer given the commission amount associated with sales to new customers is not commensurate with the commission amount associated with the contract renewal for those same customers. The commission amount associated with the renewal of a contract in addition to any related incremental sale was previously recorded as expense in the quarter the commission was earned; however, under ASC 606 these commission amounts will be recorded as expense over the term of the renewed contract. These assets will be periodically assessed for impairment. The Company has not yet completed its assessment of costs to obtain a contract under ASC 606 and is still evaluating the impact on its results of operations. However, the Company’s preliminary assessment is that there will be a material impact to retained earnings upon adoption. Other Recent Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), Amendments to the FASB Accounting Standards Codification ASU 2016-02 requires ASU 2016-02, a right-of-use asset ASU 2016-02 must ASU 2016-02 requires ASU 2016-02 will In June 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ASU 2016-15 is ASU 2016-15 is In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ASU 2016-18 is ASU 2016-18 using ASU 2016-18 is In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment 2017-04 2017-04, In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09 2017-09, 2017-09 On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time Income Tax Accounting Implications of the Tax Cuts and Jobs Act one-time Income Taxes In addition to the reduction in the federal corporate tax rate and the one-time

Intangible Assets and Goodwill

Intangible Assets and Goodwill	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets and Goodwill	3. Intangible Assets and Goodwill Finite-lived intangible assets consist of the following as of December 31, 2017: Description Weighted Gross Accumulated Net Developed technology 7 $ 14,223 $ 9,431 $ 4,792 Customer relationships 11 6,257 2,813 3,444 Non-compete 3 1,912 1,912 — Tradename 3 368 368 — Total $ 22,760 $ 14,524 $ 8,236 Finite-lived intangible assets consist of the following as of December 31, 2016: Description Weighted Gross Accumulated Net Developed technology 7 $ 14,223 $ 7,400 $ 6,823 Customer relationships 11 6,257 2,147 4,110 Non-compete 3 1,912 1,875 37 Tradename 3 368 368 — Total $ 22,760 $ 11,790 $ 10,970 Amortization expense related to intangible assets for the years ended December 31, 2017, 2016 and 2015 was $2,734, $3,116 and $3,112, respectively. The estimated remaining amortization expense for each of the five succeeding years and thereafter is as follows: Year Ending December 31, Amount 2018 $ 2,317 2019 1,603 2020 1,585 2021 1,327 2022 370 2023 and thereafter 1,034 Total $ 8,236 The carrying amount of goodwill was $50,776 as of December 31, 2017 and 2016.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. Fair Value Measurements ASC 820, Fair Value Measurements and Disclosures ASC 820 identifies fair value as an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants based on the highest and best use of the asset or liability. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. The Company uses valuation techniques to measure fair value that maximize the use of observable inputs and minimize the use of unobservable inputs. These inputs are prioritized as follows: • Level 1: • Level 2: • Level 3: The valuation techniques that may be used to measure fair value are as follows: A. Market approach B. Income approach C. Cost approach The following tables set forth the Company’s financial instruments carried at fair value using the lowest level of input as of December 31, 2017 and 2016: December 31, 2017 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,160 $ — $ — $ 8,160 Total assets $ 8,160 $ — $ — $ 8,160 December 31, 2016 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 12,871 $ — $ — $ 12,871 Total assets $ 12,871 $ — $ — $ 12,871 Realized gains and losses from sales of the Company’s investments are included in “Other income (expense), net”. The Company measures eligible assets and liabilities at fair value, with changes in value recognized in earnings. Fair value treatment may be elected either upon initial recognition of an eligible asset or liability or, for an existing asset or liability, if an event triggers a new basis of accounting. The Company did not elect to remeasure any of its existing financial assets or liabilities, and did not elect the fair value option for any financial assets and liabilities transacted in the years ended December 31, 2017 or 2016.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	5. Commitments and Contingencies Operating Lease Commitments The Company leases its facilities under non-cancelable Year Ending December 31, Operating 2018 $ 8,384 2019 6,990 2020 5,165 2021 4,952 2022 2,013 2023 and thereafter 2,094 $ 29,598 Certain amounts included in the table above relating to co-location The Company’s primary office lease has the option to renew the lease for two successive periods of five years each. In connection with the office lease, the Company entered into a letter of credit in the amount of $2,404. Certain of the Company’s operating leases include escalating payment amounts and lease incentives. The Company is recognizing the related rent expense on a straight-line basis over the term of the lease. The lease incentives are considered an inseparable part of the lease agreement, and are recognized as a reduction of rent expense on a straight-line basis over the term of the lease. As of December 31, 2017 and 2016, the Company had deferred rent and rent incentives of $1,464 and $1,579, respectively, of which $1,102 and $1,320, respectively, is classified as a long-term liability in the accompanying consolidated balance sheets. Rent expense for the years ended December 31, 2017, 2016 and 2015 was $6,608, $6,334 and $6,831, respectively. Income from sublease rental activity amounted to $285, $219 and $185, respectively, for the years ended December 31, 2017, 2016 and 2015. In addition to the operating obligations noted in the table above, during the year ended December 31, 2017, the Company recorded cost of revenue of $845, $695 of which represented the settlement amount due upon signing a termination agreement relating to the facilities and $150 represented a loss on disposal of assets in connection with the closure of the facilities for the purpose of consolidating data centers. Capital Lease Commitments The Company leases certain computer equipment and support under non-cancelable Year Ending December 31, Capital Lease 2018 $ 231 Less – interest on capital leases 3 $ 228 At December 31, 2017, total assets under capital leases were $1.2 million and related accumulated amortization was $940,000. In addition to the operating lease and capital lease commitments discussed above, as of December 31, 2017, the Company had non-cancelable Legal Matters The Company, from time to time, is party to litigation arising in the ordinary course of business. Management does not believe that the outcome of these claims will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Company based on the status of proceedings at this time. On May 22, 2017, a lawsuit was filed against Brightcove and two individuals by Ooyala, Inc. (“Ooyala”) and Ooyala Mexico S. de R.L. de C.V. (“Ooyala Mexico”). The lawsuit, which was filed in the United States District Court for the District of Massachusetts, concerns allegations that the two individuals, who are former employees of Ooyala Mexico, misappropriated customer information and other trade secrets and used that information in working for Brightcove. The complaint was amended on June 1, 2017 to remove claims against the two former employees of Ooyala Mexico. The remaining claims against Brightcove are for violation of the Defend Trade Secrets Act of 2016 (18 U.S.C. §1836), violation of the Massachusetts trade secret statute (M.G.L. c. 93, §42), violation of Massachusetts Chapter 93A (M.G.L. c. 93A, §11), and tortious interference with advantageous business relationships. Ooyala and Ooyala Mexico also filed a motion for preliminary injunction (amended at the same time the complaint was amended), seeking to enjoin Brightcove from using any of the allegedly misappropriated information or communicating with customers whose information was allegedly taken, and seeking the return of any information that was taken. On June 16, 2017, Brightcove filed an opposition to the motion for preliminary injunction, and also moved to dismiss the lawsuit. Brightcove’s motion to dismiss was denied on September 6, 2017. The court has not ruled on Ooyala’s motion for preliminary injunction. The Company expects the court to issue a schedule order in the near term. The Company cannot yet determine whether it is probable that a loss will be incurred in connection with this complaint, nor can the Company reasonably estimate the potential loss, if any. On October 26, 2017, Realtime Adaptive Streaming LLC filed a complaint against Brightcove and Brightcove’s subsidiary Brightcove Holdings, Inc. (collectively, in this paragraph, “Brightcove”) in the United States District Court for the District of Delaware. The complaint alleges that Brightcove infringed five patents related to file compression technology. The complaint seeks monetary damages and injunctive relief. On December 1, 2017, Realtime filed an amended complaint, adding two additional patents to its claims. Brightcove filed a motion to dismiss on January 26, 2018. Realtime filed an opposition to the motion to dismiss on February 9, 2018 and Brightcove filed a reply on February 16, 2018. A ruling on the motion to dismiss has not yet been issued by the court. We cannot yet determine whether it is probable that a loss will be incurred in connection with this complaint, nor can the Company reasonably estimate the potential loss, if any. Guarantees and Indemnification Obligations The Company typically enters into indemnification agreements in the ordinary course of business. Pursuant to these agreements, the Company indemnifies and agrees to reimburse the indemnified party for losses and costs incurred by the indemnified party, generally the Company’s customers, in connection with patent, copyright, trade secret, or other intellectual property or personal right infringement claim by third parties with respect to the Company’s technology. The term of these indemnification agreements is generally perpetual after execution of the agreement. Based on when customers first subscribe for the Company’s service, the maximum potential amount of future payments the Company could be required to make under certain of these indemnification agreements is unlimited, however, more recently the Company has typically limited the maximum potential value of such potential future payments in relation to the value of the contract. Based on historical experience and information known as of December 31, 2017, the Company has not incurred any costs for the above guarantees and indemnities. The Company has received requests for indemnification from customers in connection with patent infringement suits brought against the customer by a third party. To date, the Company has not agreed that the requested indemnification is required by the Company’s contract with any such customer. In certain circumstances, the Company warrants that its products and services will perform in all material respects in accordance with its standard published specification documentation in effect at the time of delivery of the licensed products and services to the customer for the warranty period of the product or service. To date, the Company has not incurred significant expense under its warranties and, as a result, the Company believes the estimated fair value of these agreements is immaterial.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Stockholders' Equity	6. Stockholders’ Equity Common Stock Common stockholders are entitled to one vote per share. Holders of common stock are entitled to receive dividends, when and if declared by the Board. Treasury Stock The Company has recorded 135,000 shares as treasury stock as of December 31, 2017 and 2016. Equity Incentive Plans At December 31, 2017, the Company had four stock-based compensation plans, the Amended and Restated 2004 Stock Option and Incentive Plan (the 2004 Plan), the 2012 Stock Incentive Plan (the 2012 Plan), the Brightcove Inc. 2012 RSU Inducement Plan (the RSU Plan), and the Brightcove Inc. 2014 Stock Option Inducement Plan (the 2014 Stock Inducement Plan). The 2004 Plan provided for the issuance of incentive and non-qualified Sub-Plan In 2012, the Board and stockholders adopted the 2012 Plan, which became effective on February 16, 2012. The 2012 Plan provides for the issuance of incentive and non-qualified non-employee In 2012, the Company adopted the RSU Plan and made awards of restricted stock units pursuant to the RSU Plan to 15 new employees in connection with the acquisition of Zencoder. The awards of restricted stock units cover an aggregate of 77,100 shares of the Company’s common stock and were made as a material inducement to the employees entering into employment with the Company in connection with the acquisition of Zencoder. The restricted stock units were settled in shares of the Company’s common stock upon vesting. In 2014, the Company adopted the 2014 Stock Inducement Plan and made awards of options pursuant to the 2014 Stock Inducement Plan to 61 new employees in connection with the asset purchase agreement. The awards of options cover an aggregate of 578,350 shares of the Company’s common stock in the form of options to purchase shares of the Company’s common stock as an inducement to the employees entering into employment with the Company in connection with the asset purchase agreement. At December 31, 2017, 1,429,022 shares were available for issuance under all stock-based compensation plans. The following is a summary of the stock option activity for all stock option plans during the year ended December 31, 2017: Number of Shares Weighted-Average Exercise Weighted-Average Remaining Contractual Term (In Years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2016 4,150,584 $ 7.17 Granted 483,727 7.03 Exercised (229,127 ) 2.27 $ 1,243 Cancelled (480,871 ) 8.05 Outstanding at December 31, 2017 3,924,313 $ 7.33 6.30 $ 3,783 Exercisable at December 31, 2017 2,430,839 $ 7.23 5.37 $ 3,052 (1) The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on December 31, 2017 of $7.10 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options. The aggregate intrinsic value for options exercised during the years ended December 31, 2016 and 2015 was $5,159 and $281, respectively. The Company has entered into restricted stock unit (RSU) agreements with certain of its employees pursuant to the 2012 Plan and the RSU Plan. Vesting occurs periodically at specified time intervals, ranging from three months to four years, and in specified percentages. Upon vesting, the holder will receive one share of the Company’s common stock for each unit vested. The following table summarizes the RSU activity during the year ended December 31, 2017: Shares Weighted Average Grant Date Fair Value Unvested by December 31, 2016 1,902,577 $ 7.84 Granted 1,189,973 6.95 Vested and issued (561,133 ) 7.47 Cancelled (312,713 ) 7.80 Unvested by December 31, 2017 2,218,704 $ 7.44 Warrants In September 2006, the Company issued fully vested warrants to purchase an aggregate of 46,713 shares of Series B Preferred Stock, at a purchase price of $3.21 per share, to two lenders in connection with a line of credit agreement. The warrants were exercisable at any time up until the expiration date of August 31, 2016. The fair value of the warrants was recorded as a discount on the related debt, and was amortized to interest expense over the life of the debt. The debt was fully repaid in March 2007. The warrant liability was reported at fair value until completion of the Company’s IPO in February 2012, whereupon the warrants automatically converted into warrants to purchase shares of the Company’s common stock. At the time of conversion of the warrants in connection with the Company’s IPO, the fair value of the warrants was $395, which was reclassified as a component of additional paid-in During 2012, 18,685 shares exercisable under the warrants were exercised pursuant to a net exercise provision, which resulted in the issuance of 15,781 common shares. In August 2016, the remaining 28,028 shares exercisable under the warrants were exercised pursuant to a net exercise provision, which resulted in the issuance of 20,528 common shares. Common Stock Reserved for Future Issuance At December 31, 2017, the Company has reserved the following shares of common stock for future issuance: December 31, Common stock options outstanding 3,924,313 Restricted stock unit awards outstanding 2,218,704 Shares available for issuance under all stock-based compensation plans 1,429,022 Total shares of authorized common stock reserved for future issuance 7,572,039

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	7. Income Taxes Loss before the provision for income taxes consists of the following: Year Ended December 31, 2017 2016 2015 Domestic $ (20,528 ) $ (10,756 ) $ (8,028 ) Foreign 1,379 1,180 839 Total $ (19,149 ) $ (9,576 ) $ (7,189 ) The provision for income taxes in the accompanying consolidated financial statements consists of the following: Year Ended December 31, 2017 2016 2015 Current provision: Federal $ — $ — $ — State 21 33 29 Foreign 311 424 389 Total current 332 457 418 Deferred (benefit): Federal — — — State — — — Foreign 38 (47 ) (27 ) Total deferred 38 (47 ) (27 ) Total provision $ 370 $ 410 $ 391 A reconciliation of the U.S. federal statutory rate to the Company’s effective tax rate is as follows: Year Ended December 31, 2017 2016 2015 Tax at statutory rates (34.0 )% (34.0 )% (34.0 )% State income taxes (4.1 ) (6.1 ) 3.4 Change in tax rate 103.9 0.1 3.0 Permanent differences 7.1 11.7 34.7 Foreign rate differential (0.7 ) (1.1 ) (1.2 ) Research and development credits (3.7 ) (6.7 ) (9.6 ) Change in valuation allowance (66.3 ) 40.8 7.7 Other, net (0.3 ) (0.4 ) 1.4 Effective tax rate 1.9 % 4.3 % 5.4 % The approximate income tax effect of each type of temporary difference and carryforward as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Deferred tax assets: Net operating loss carry-forwards $ 37,964 $ 45,850 Tax credit carry-forwards 9,173 7,654 Stock-based compensation 1,856 2,236 Fixed Assets 267 154 Account receivable reserves 189 219 Accrued compensation 851 2,232 Capitalized start-up 138 279 Other temporary differences 371 761 Total deferred tax assets 50,809 59,385 Deferred tax liabilities: Intangible assets (3,611 ) (5,962 ) Total deferred tax liabilities (3,611 ) (5,962 ) Valuation allowance (47,111 ) (53,302 ) Net deferred tax assets $ 87 $ 121 The Company is required to compute income tax expense in each jurisdiction in which it operates. This process requires the Company to project its current tax liability and estimate its deferred tax assets and liabilities, including net operating loss (NOL) and tax credit carry-forwards. In assessing the ability to realize the net deferred tax assets, management considers whether it is more likely than not that some portion or all of the net deferred tax assets will not be realized. The Company has provided a valuation allowance against its remaining U.S. net deferred tax assets as of December 31, 2017 and 2016, as based upon the level of historical U.S. losses and future projections over the period in which the net deferred tax assets are deductible, at this time, management believes it is more likely than not that the Company will not realize the benefits of these deductible differences. The decrease in the valuation allowance from 2016 to 2017 of $6.2 million principally relates to the reduction in federal deferred tax rate offset by the current year taxable loss. Based upon the level of historical income in Japan and future projections, the Company believes it is probable it will realize the benefits of its future deductible differences. As such, the Company has not recorded a valuation allowance against its net deferred tax assets in Japan as of December 31, 2017 and 2016. As of December 31, 2017, the Company had federal and state net operating losses of approximately $161.9 million and $66.7 million, respectively, which are available to offset future taxable income, if any, through 2037. The Company also had federal and state research and development tax credits of $6.1 million and $3.9 million, respectively, which expire in various amounts through 2037. The net operating loss and tax credit amounts are subject to annual limitations under Section 382 change of ownership rules under the U.S. Internal Revenue Code of 1986, as amended. Through June 30, 2014, the Company completed an assessment to determine whether there may have been a Section 382 ownership change and determined that it is more-likely-than-not On January 1, 2009, the Company adopted the provision for uncertain tax positions under ASC 740, Income Taxes At December 31, 2017 and 2016, the Company had no accrued interest or penalties related to uncertain tax positions. The Company files income tax returns in the U.S. federal tax jurisdiction, various state and various foreign jurisdictions. The Company is currently open to examination under the statute of limitations by the Internal Revenue Service and state jurisdictions for the tax years ended 2014 through 2017. Since the Company is in a U.S. loss carryforward position, carryforward tax attributes generated in prior years may still be adjusted upon future examination if they have or will be used in a future period. Additionally, certain non-U.S. On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time As of December 31, 2017, the Company had not yet completed its accounting for all of the tax effects of the enactment of the Act; however, the Company has made a reasonable estimate of the effects on its existing deferred tax balances and the one-time No additional U.S. income taxes or foreign withholding taxes have been provided for any additional outside basis differences inherent in the Company’s foreign entities as these amounts continue to be indefinitely reinvested in foreign operations based on management’s current intentions. Determining the amount of unrecognized deferred tax liability related to any remaining undistributed foreign earnings not subject to the transition tax and additional outside basis difference in these entities (i.e., basis difference in excess of that subject to the one-time

Debt

Debt	12 Months Ended
	Dec. 31, 2017
Debt Disclosure [Abstract]
Debt	8. Debt On November 19, 2015, the Company entered into an amended and restated loan and security agreement with a lender (the “Loan Agreement”) providing for up to a $20.0 million asset based line of credit (the “Line of Credit”). Under the Line of Credit, the Company can borrow up to $20.0 million. Borrowings under the Line of Credit are secured by substantially all of the Company’s assets, excluding intellectual property. Outstanding amounts under the Line of Credit accrue interest at a rate equal to the prime rate or the LIBOR rate plus 2.5%. Under the Loan Agreement, the Company must comply with certain financial covenants, including maintaining a minimum asset coverage ratio. If the outstanding principal during any month is at least $15.0 million, the Company must also maintain a minimum net income threshold based on non-GAAP On December 31, 2015, the Company entered into an equipment financing agreement with a lender (the “December 2015 Equipment Financing Agreement”) to finance the purchase of $604 in computer equipment. In February 2016, the Company drew down $604 under the December 2015 Equipment Financing Agreement, and the liability was recorded at fair value using a market interest rate. The Company repaid its obligation over a two year period through January 2018, and the amount outstanding was $26 as of December 31, 2017.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2017
Payables and Accruals [Abstract]
Accrued Expenses	9. Accrued Expenses Accrued expenses consist of the following: December 31, 2017 2016 Accrued payroll and related benefits $ 4,436 $ 7,089 Accrued sales and other taxes 1,363 2,275 Accrued professional fees and outside contractors 2,021 1,082 Accrued content delivery 2,390 2,013 Accrued other liabilities 3,411 3,246 Total $ 13,621 $ 15,705

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Information	10. Segment Information Disclosure requirements about segments of an enterprise and related information establishes standards for reporting information regarding operating segments in annual financial statements and requires selected information of those segments to be presented in interim financial reports issued to stockholders. 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, or decision-making group, in making decisions on how to allocate resources and assess performance. The Company’s chief decision maker is its chief executive officer. The Company and the chief decision maker view the Company’s operations and manage its business as one operating segment. Geographic Data Total revenue to unaffiliated customers by geographic area, based on the location of the customer, was as follows: Year Ended December 31, 2017 2016 2015 Revenue: North America $ 91,358 $ 92,912 $ 86,106 Europe 24,425 25,196 25,380 Japan 16,881 15,230 9,061 Asia Pacific 22,539 15,617 12,380 Other 710 1,311 1,779 Total revenue $ 155,913 $ 150,266 $ 134,706 North America is comprised of revenue from the United States, Canada and Mexico. Revenue from customers located in the United States was $85,459, $87,302 and $80,455 during the years ended December 31, 2017, 2016 and 2015, respectively. Revenue from customers located in Japan was $16,881, $15,230 and $9,061 during the years ended December 31, 2017, 2016 and 2015, respectively. Other than the United States and Japan, no other country contributed more than 10% of the Company’s total revenue during the years ended December 31, 2017 and 2016. As of December 31, 2017 and December 31, 2016, property and equipment at locations outside the U.S. was not material.

401(k) Savings Plan

401(k) Savings Plan	12 Months Ended
	Dec. 31, 2017
Retirement Benefits [Abstract]
401(k) Savings Plan	11. 401(k) Savings Plan The Company maintains a defined contribution savings plan covering all eligible U.S. employees under Section 401(k) of the Internal Revenue Code. Company contributions to the plan may be made at the discretion of the Board. During the years ended December 31, 2017, 2016 and 2015, the Company has made contributions to the plan of $425, $336 and $276, respectively.

Quarterly Financial Data

Quarterly Financial Data	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data	12. Quarterly Financial Data (unaudited) The following table presents certain unaudited quarterly financial information for the eight quarters in the period ended December 31, 2017. This information has been prepared on the same basis as the audited financial statements and includes all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the unaudited quarterly results of operations set forth herein. For the three months ended: Dec. 31, Sep. 30, Jun. 30, Mar. 31, Dec. 31, Sep. 30, Jun. 30, Mar. 31, Revenue $ 40,101 $ 39,487 $ 38,753 $ 37,572 $ 38,625 $ 38,389 $ 36,960 $ 36,292 Gross profit 23,783 22,983 22,175 22,354 23,272 24,612 23,507 23,028 Loss from operations (1,331 ) (5,349 ) (7,884 ) (5,132 ) (3,684 ) (1,552 ) (2,211 ) (1,531 ) Net loss (1,372 ) (5,396 ) (7,678 ) (5,073 ) (4,363 ) (1,618 ) (2,398 ) (1,607 ) Basic net loss per share (0.04 ) (0.16 ) (0.22 ) (0.15 ) (0.13 ) (0.05 ) (0.07 ) (0.05 ) Diluted net loss per share (0.04 ) (0.16 ) (0.22 ) (0.15 ) (0.13 ) (0.05 ) (0.07 ) (0.05 )

Business Description (Policies)

Business Description (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Business Description	Business Description Brightcove Inc. (the Company) is a leading global provider of cloud services for video which enable its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. The Company is headquartered in Boston, Massachusetts and was incorporated in the state of Delaware on August 24, 2004. At December 31, 2017, the Company had nine wholly-owned subsidiaries: Brightcove UK Ltd, Brightcove Singapore Pte. Ltd., Brightcove Korea, Brightcove Australia Pty Ltd, Brightcove Holdings, Inc., Brightcove Kabushiki Kaisha (Brightcove KK), Zencoder Inc. (Zencoder), Brightcove FZ-LLC,
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (GAAP). Any reference in these notes to applicable guidance is meant to refer to the authoritative United States generally accepted accounting principles as found in the Accounting Standards Codification (ASC) and Accounting Standards Update (ASU) of the Financial Accounting Standards Board (FASB).
Use of Estimates and Uncertainties	Use of Estimates and Uncertainties The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts expensed during the reporting period. Significant estimates relied upon in preparing these consolidated financial statements include revenue recognition and revenue reserves, allowances for doubtful accounts, contingent liabilities, the expensing and capitalization of research and development costs for internal-use Although the Company regularly assesses these estimates, actual results could differ materially from these estimates. Changes in estimates are recorded in the period in which they become known. The Company bases its estimates on historical experience and various other assumptions that it believes to be reasonable under the circumstances. Actual results may differ from management’s estimates if these results differ from historical experience, or other assumptions do not turn out to be substantially accurate, even if such assumptions are reasonable when made. The Company is subject to a number of risks and uncertainties common to companies in similar industries and stages of development including, but not limited to, rapid technological changes, competition from substitute products and services from larger companies, customer concentration, management of international activities, protection of proprietary rights, patent litigation, and dependence on key individuals.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.
Subsequent Events Considerations	Subsequent Events Considerations The Company considers events or transactions that occur after the balance sheet date but prior to the issuance of the financial statements to provide additional evidence for certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated as required. The Company has evaluated all subsequent events and determined that there are no material recognized or unrecognized subsequent events.
Foreign Currency Translation	Foreign Currency Translation The reporting currency of the Company is the U.S. dollar. The functional currency of the Company’s foreign subsidiaries is the local currency of each subsidiary. All assets and liabilities in the balance sheets of entities whose functional currency is a currency other than the U.S. dollar are translated into U.S. dollar equivalents at exchange rates as follows: (1) asset and liability accounts at period-end
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less at the date of purchase to be cash equivalents. Management determines the appropriate classification of investments at the time of purchase, and re-evaluates Cash and cash equivalents primarily consist of cash on deposit with banks and amounts held in interest-bearing money market accounts. Cash equivalents are carried at cost, which approximates their fair market value. Cash and cash equivalents as of December 31, 2017 and 2016 consist of the following: December 31, 2017 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 17,972 $ 17,972 $ 17,972 Money market funds Demand 8,160 8,160 8,160 Total cash and cash equivalents $ 26,132 $ 26,132 $ 26,132 December 31, 2016 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 23,942 $ 23,942 $ 23,942 Money market funds Demand 12,871 12,871 12,871 Total cash and cash equivalents $ 36,813 $ 36,813 $ 36,813
Disclosure of Fair Value of Financial Instruments	Disclosure of Fair Value of Financial Instruments The carrying amounts of the Company’s financial instruments, which include cash, cash equivalents, accounts receivable, accounts payable, accrued expenses, capital lease liabilities and equipment financing, approximated their fair values at December 31, 2017 and 2016, due to the short-term nature of these instruments. The Company has evaluated the estimated fair value of financial instruments using available market information and management’s estimates. The use of different market assumptions and/or estimation methodologies could have a significant impact on the estimated fair value amounts. See Note 4 for further discussion.
Revenue Recognition	Revenue Recognition The Company primarily derives revenue from the sale of its online video platform, which enables its customers to publish and distribute video to Internet-connected devices quickly, easily and in a cost-effective and high-quality manner. Revenue is derived from three primary sources: (1) the subscription to its technology and related support; (2) hosting, bandwidth and encoding services; and (3) professional services, which include initiation, set-up The Company recognizes revenue when all of the following conditions are satisfied: (1) there is persuasive evidence of an arrangement; (2) the service has been provided to the customer; (3) the collection of fees is probable; and (4) the amount of fees to be paid by the customer is fixed or determinable. The Company’s subscription arrangements provide customers the right to access its hosted software applications. Customers do not have the right to take possession of the Company’s software during the hosting arrangement. Accordingly, the Company recognizes revenue in accordance with ASC 605, Revenue Recognition non-cancellable. month-to-month Revenue recognition commences upon the later of when the application is placed in a production environment, or when all revenue recognition criteria have been met. Professional services and other revenue sold on a stand-alone basis are recognized as the services are performed, subject to any refund or other obligation. Deferred revenue includes amounts billed to customers for which revenue has not been recognized, and primarily consists of the unearned portion of annual software subscription and support fees, and deferred professional service fees. Revenue is presented net of any taxes collected from customers. Multiple-Element Arrangements The Company periodically enters into multiple-element service arrangements that include platform subscription fees, support fees, and, in certain cases, other professional services. The Company assesses arrangements with multiple deliverables under ASU No. 2009-13, Revenue Recognition (Topic 605), Multiple-Deliverable Revenue Arrangements — a Consensus of the FASB Emerging Issues Task Force, 2009-13, In order to treat deliverables in a multiple-element arrangement as separate units of accounting, the deliverables must have stand-alone value upon delivery. If the deliverables have stand-alone value upon delivery, the Company accounts for each deliverable separately. Subscription services have stand-alone value as such services are often sold separately. In determining whether professional services have stand-alone value, the Company considers the following factors for each professional services agreement: availability of the services from other vendors, the nature of the professional services, the timing of when the professional services contract was signed in comparison to the subscription service start date, and the contractual dependence of the subscription service on the customer’s satisfaction with the professional services work. To date, the Company has concluded that all of the professional services included in multiple-element arrangements executed have stand-alone value. When multiple deliverables included in an arrangement are separated into different units of accounting, the arrangement consideration is allocated to the identified separate units based on a relative selling price hierarchy. The Company determines the relative selling price for a deliverable based on its vendor-specific objective evidence of fair value (VSOE), if available, or its best estimate of selling price (BESP), if VSOE is not available. The Company has determined that third-party evidence of selling price (TPE) is not a practical alternative due to differences in its service offerings compared to other parties and the availability of relevant third-party pricing information. The amount of revenue allocated to delivered items is limited by contingent revenue, if any. The Company has not established VSOE for its offerings due to the lack of pricing consistency, the introduction of new services and other factors. Accordingly, the Company uses its BESP to determine the relative selling price. The Company determines BESP by considering its overall pricing objectives and market conditions. Significant pricing practices taken into consideration include the Company’s discounting practices, the size and volume of the Company’s transactions, the geographic area where services are sold, price lists, historical contractually stated prices and prior relationships and future subscription service sales with certain classes of customers. The determination of BESP is made through consultation with and approval by the Company’s management, taking into consideration the go-to-market go-to-market
Cost of Revenue	Cost of Revenue Cost of revenue primarily consists of costs related to supporting and hosting the Company’s product offerings and delivering professional services. These costs include salaries, benefits, incentive compensation and stock-based compensation expense related to the management of the Company’s data centers, customer support team and the Company’s professional services staff, in addition to third-party service provider costs such as data center and networking expenses, allocated overhead, amortization of capitalized internal-use
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The Company offsets gross trade accounts receivable with an allowance for doubtful accounts. The allowance for doubtful accounts is the Company’s best estimate of the amount of probable credit losses in the Company’s existing accounts receivable and is based upon historical loss patterns, the number of days that billings are past due, and an evaluation of the potential risk of loss associated with specific accounts. Account balances are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. Provisions for allowances for doubtful accounts are recorded in general and administrative expense. Below is a summary of the changes in the Company’s allowance for doubtful accounts for the years ended December 31, 2017, 2016 and 2015: Balance at Provision Write-offs Balance at Year ended December 31, 2017 $ 154 $ 203 $ (211 ) $ 146 Year ended December 31, 2016 332 230 (408 ) 154 Year ended December 31, 2015 181 408 (257 ) 332
Off-Balance Sheet Risk and Concentration of Credit Risk	Off-Balance The Company has no significant off-balance For the years ended December 31, 2017, 2016 and 2015, no individual customer accounted for more than 10% of total revenue. As of December 31, 2017 and 2016, no individual customer accounted for more than 10% of net accounts receivable.
Concentration of Other Risks	Concentration of Other Risks The Company is dependent on certain content delivery network providers who provide digital media delivery functionality enabling the Company’s on-demand end-users.
Software Development Costs	Software Development Costs Costs incurred to develop software applications used in the Company’s on-demand internal-use internal-use internal-use During the years ended December 31, 2017, 2016 and 2015, the Company capitalized $3,239, $4,038 and $1,488, respectively, of internal-use internal-use
Property and Equipment	Property and Equipment Property and equipment are recorded at cost and depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of the lease term or the estimated useful life of the related asset. Upon retirement or sale, the cost of assets disposed of, and the related accumulated depreciation, are removed from the accounts, and any resulting gain or loss is included in the determination of net income or loss in the period of retirement. Property and equipment consists of the following: Estimated Useful Life (in Years) December 31, 2017 2016 Computer equipment 3 17,157 $ 18,750 Software 3 - 6 17,996 14,648 Furniture and fixtures 5 2,396 1,995 Leasehold improvements Shorter of lease 1,366 1,202 38,915 36,595 Less accumulated depreciation and amortization 29,772 27,331 $ 9,143 $ 9,264 Depreciation and amortization expense, which includes amortization expense associated with capitalized internal-use Expenditures for maintenance and repairs are charged to expense as incurred, whereas major improvements are capitalized as additions to property and equipment. On December 31, 2015, the Company entered into an equipment financing agreement with a lender (the “December 2015 Equipment Financing Agreement”) to finance the purchase of $604 in computer equipment. In February 2016, the Company drew down $604 under the December 2015 Equipment Financing Agreement. Refer to Note 8 for a discussion of the equipment financing. On December 31, 2016, the Company disposed of a cost value of $1.9 million in computer equipment in connection with the closure of certain facilities for the purpose of consolidating its data centers. The Company recorded cost of revenue of $845, of which $695 represented the settlement amount due upon signing a termination agreement relating to the facilities and $150 represented a loss on disposal of assets in connection with the closure of the facilities.
Long-Lived Assets	Long-Lived Assets The Company reviews long-lived assets and certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. During this review, the Company re-evaluates For the years ended December 31, 2017, 2016 and 2015, the Company has not identified any impairment of its long-lived assets.
Business Combinations	Business Combinations The Company records tangible and intangible assets acquired and liabilities assumed in business combinations under the purchase method of accounting. Amounts paid for each acquisition are allocated to the assets acquired and liabilities assumed based on their fair values at the date of acquisition. The Company then allocates the purchase price in excess of net tangible assets acquired to identifiable intangible assets based on detailed valuations that use information and assumptions provided by management. Any excess purchase price over the fair value of the net tangible and intangible assets acquired and liabilities assumed is allocated to goodwill. If the fair value of the assets acquired exceeds the purchase price, the excess is recognized as a gain. Significant management judgments and assumptions are required in determining the fair value of acquired assets and liabilities, particularly acquired intangible assets. The valuation of purchased intangible assets is based upon estimates of the future performance and cash flows from the acquired business. Each asset is measured at fair value from the perspective of a market participant. If different assumptions are used, it could materially impact the purchase price allocation and adversely affect our results of operations, financial condition and cash flows.
Intangible Assets and Goodwill	Intangible Assets and Goodwill Intangible assets that have finite lives are amortized over their estimated useful lives based on the pattern of consumption of the economic benefit or, if that pattern cannot be readily determined, on a straight-line basis and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable, as discussed above. Goodwill is not amortized, but is evaluated for impairment annually, or whenever events or changes in circumstances indicate that the carrying value may not be recoverable. In assessing the recoverability of goodwill, the Company must make assumptions regarding the estimated future cash flows, and other factors, to determine the fair value of these assets. If these estimates or their related assumptions change in the future, the Company may be required to record impairment charges against these assets in the reporting period in which the impairment is determined. The Company has determined, based on its organizational structure, that it had one reporting unit as of December 31, 2017 and 2016. For goodwill, the impairment evaluation includes a comparison of the carrying value of the reporting unit to the fair value of the reporting unit. If the reporting unit’s estimated fair value exceeds the reporting unit’s carrying value, no impairment of goodwill exists. If the fair value of the reporting unit does not exceed its carrying value, then further analysis would be required to determine the amount of the impairment, if any. In accordance with ASU No. 2011-08, Intangibles — Goodwill and Other (Topic 350) Testing Goodwill for Impairment two-phase
Comprehensive Income (Loss)	Comprehensive Income (Loss) Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions, other events, and circumstances from non-owner
Net Loss per Share	Net Loss per Share The Company calculates basic and diluted net loss per common share by dividing the net loss by the weighted-average number of common shares outstanding during the period. The Company has excluded (a) all unvested restricted shares that are subject to repurchase and (b) the Company’s other potentially dilutive shares, which include warrants to purchase common stock and outstanding common stock options and unvested restricted stock units, from the weighted-average number of common shares outstanding as their inclusion in the computation for all periods would be anti-dilutive due to net losses incurred. The following potentially dilutive common shares have been excluded from the computation of dilutive net loss per share as of December 31, 2017, 2016 and 2015, as their effect would have been antidilutive: Year Ended December 31, 2017 2016 2015 Options outstanding 4,127 4,291 4,139 Restricted stock units outstanding 2,050 1,668 1,043 Warrants — 19 28
Income Taxes	Income Taxes The Company accounts for income taxes in accordance with the asset and liability method. Under this method, deferred tax assets and liabilities are recognized based on temporary differences between the financial reporting and income tax bases of assets and liabilities using statutory rates. In addition, this method requires a valuation allowance against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company accounts for uncertain tax positions recognized in the consolidated financial statements by prescribing a more-likely-than-not
Stock-Based Compensation	Stock-Based Compensation At December 31, 2017, the Company had four stock-based compensation plans, which are more fully described in Note 6. For stock options issued under the Company’s stock-based compensation plans, the fair value of each option grant is estimated on the date of grant. For service-based options, the Company recognizes compensation expense on a straight-line basis over the requisite service period of the award. For restricted stock units issued under the Company’s stock-based compensation plans, the fair value of each grant is calculated based on the Company’s stock price on the date of grant. The fair value of each option grant issued under the Company’s stock-based compensation plans was estimated using the Black-Scholes option-pricing model. The expected volatility of options granted has been determined using a weighted-average of the historical volatility measures of a peer group of companies that issued options with substantially similar terms as well as the historical volatility of the Company’s own common stock. The expected life of options has been determined utilizing the “simplified method”. The simplified method is based on the average of the vesting tranches and the contractual life of each grant. The risk-free interest rate is based on a treasury instrument whose term is consistent with the expected life of the stock options. The Company has not paid, and does not anticipate paying, cash dividends on its common stock; therefore, the expected dividend yield is assumed to be zero. The weighted-average fair value of options granted during the years ended December 31, 2017, 2016 and 2015, was $3.08, $4.01 and $3.10 per share, respectively. The weighted-average assumptions utilized to determine such values are presented in the following table: Year Ended December 31, 2017 2016 2015 Risk-free interest rate 2.08 % 1.75 % 1.96 % Expected volatility 42 % 45 % 46 % Expected life (in years) 6.1 6.2 6.2 Expected dividend yield — — — For the years ended December 31, 2017, 2016 and 2015, total stock-based compensation expense was $7,243, $6,012 and $6,014, respectively. As of December 31, 2017, there was $18,232 of total unrecognized stock-based compensation expense related to stock based awards that is expected to be recognized over a weighted-average period of 2.06 years. In July 2017, the Company entered into a separation agreement with its former Chief Executive Officer (“CEO”), which accelerated the vesting schedule of certain existing stock-based awards held by the CEO. The incremental stock-based compensation expense as a result of the modification of these stock-based awards was $186 for the year ended December 31, 2017. Further, the vesting schedule of certain other stock-based awards held by the CEO accelerates upon a change in control of the Company on or prior to December 31, 2017, which would result in an additional $220 of stock-based compensation expense upon such change in control. As there was not a change in control of the Company, the additional stock-based compensation was not recognized. On January 1, 2017, the Company adopted ASU 2016-09. ASU 2016-09 identifies additional paid-in-capital by Prior to the adoption of ASU 2016-09 pre-vesting The Company accounts for transactions in which services are received from non-employees non-employee Equity-Based Payments to Non-Employees, non-employees For the years ended December 31, 2017, 2016 and 2015, stock-based compensation expense for stock options granted to non-employees See Note 6 for a summary of the stock option and restricted stock activity under the Company’s stock-based compensation plans for the year ended December 31, 2017.
Advertising Costs	Advertising Costs Advertising costs are charged to operations as incurred. The Company incurred advertising costs of $2,485, $2,137 and $2,081 for the years ended December 31, 2017, 2016 and 2015, respectively.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Revenue Recognition In May 2014, the Financial Accounting Standards Board (FASB) issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers , cumulative catch-up adjustment ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of Effective Date The Company will adopt ASC 606 on January 1, 2018. The Company has elected to apply the modified retrospective method of adoption. The adoption of ASC 606 is expected to have a material effect on the Company’s consolidated financial statements. In addition to the enhanced footnote disclosures related to customer contracts, the Company anticipates that the most significant impact of the new standard will relate to variable consideration and costs to obtain a contract. In order to complete this assessment, the Company is continuing to update and enhance its internal accounting systems and internal controls over financial reporting. Variable Consideration Contracts for premium customers generally provide the customer with a maximum annual level of entitlements and provide the rate at which the customer must pay for actual usage above the annual entitlement allowance. Under ASC 605, if usage exceeds the annual allowance level for a particular customer arrangement, the associated revenue is recognized in the period that the additional usage occurs. Under ASC 606, when the transaction price includes a variable amount, an entity is required to estimate the consideration that is expected to be received for a particular customer arrangement. The Company will evaluate variable consideration for usage based fees at contract inception and re-evaluate Costs to Obtain a Contract Commissions are paid to internal sales representatives as compensation for obtaining contracts. Under ASC 606, the Company will capitalize commissions that are incremental as a result of costs incurred to obtain a customer contract if those costs are not within the scope of another topic within the accounting literature and meet the specified criteria. Assets recognized for costs to obtain a contract will be amortized over the period of performance for the underlying customer contracts. The commission expense on contracts with new customers was previously recorded over the respective contract term. Under ASC 606, the commission expense on contracts with new customers will be recorded over the average life of a customer given the commission amount associated with sales to new customers is not commensurate with the commission amount associated with the contract renewal for those same customers. The commission amount associated with the renewal of a contract in addition to any related incremental sale was previously recorded as expense in the quarter the commission was earned; however, under ASC 606 these commission amounts will be recorded as expense over the term of the renewed contract. These assets will be periodically assessed for impairment. The Company has not yet completed its assessment of costs to obtain a contract under ASC 606 and is still evaluating the impact on its results of operations. However, the Company’s preliminary assessment is that there will be a material impact to retained earnings upon adoption. Other Recent Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), Amendments to the FASB Accounting Standards Codification ASU 2016-02 requires ASU 2016-02, a right-of-use asset ASU 2016-02 must ASU 2016-02 requires ASU 2016-02 will In June 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments ASU 2016-15 is ASU 2016-15 is In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash ASU 2016-18 is ASU 2016-18 using ASU 2016-18 is In January 2017, the FASB issued ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment 2017-04 2017-04, In May 2017, the FASB issued ASU 2017-09, Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting 2017-09 2017-09, 2017-09 On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was enacted in the United States. The Act reduces the U.S. federal corporate tax rate from 34% to 21%, requires companies to pay a one-time Income Tax Accounting Implications of the Tax Cuts and Jobs Act one-time Income Taxes In addition to the reduction in the federal corporate tax rate and the one-time

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents	Cash and cash equivalents as of December 31, 2017 and 2016 consist of the following: December 31, 2017 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 17,972 $ 17,972 $ 17,972 Money market funds Demand 8,160 8,160 8,160 Total cash and cash equivalents $ 26,132 $ 26,132 $ 26,132 December 31, 2016 Description Contracted Maturity Amortized Cost Fair Market Value Balance Per Balance Cash Demand $ 23,942 $ 23,942 $ 23,942 Money market funds Demand 12,871 12,871 12,871 Total cash and cash equivalents $ 36,813 $ 36,813 $ 36,813
Summary of Changes in Company's Allowance for Doubtful Accounts	Below is a summary of the changes in the Company’s allowance for doubtful accounts for the years ended December 31, 2017, 2016 and 2015: Balance at Provision Write-offs Balance at Year ended December 31, 2017 $ 154 $ 203 $ (211 ) $ 146 Year ended December 31, 2016 332 230 (408 ) 154 Year ended December 31, 2015 181 408 (257 ) 332
Property and Equipment	Property and equipment consists of the following: Estimated Useful Life (in Years) December 31, 2017 2016 Computer equipment 3 17,157 $ 18,750 Software 3 - 6 17,996 14,648 Furniture and fixtures 5 2,396 1,995 Leasehold improvements Shorter of lease 1,366 1,202 38,915 36,595 Less accumulated depreciation and amortization 29,772 27,331 $ 9,143 $ 9,264
Potentially Dilutive Common Shares Excluded from Computation of Dilutive Net Loss per Share	The following potentially dilutive common shares have been excluded from the computation of dilutive net loss per share as of December 31, 2017, 2016 and 2015, as their effect would have been antidilutive: Year Ended December 31, 2017 2016 2015 Options outstanding 4,127 4,291 4,139 Restricted stock units outstanding 2,050 1,668 1,043 Warrants — 19 28
Weighted Average Assumptions Utilized	The weighted-average fair value of options granted during the years ended December 31, 2017, 2016 and 2015, was $3.08, $4.01 and $3.10 per share, respectively. The weighted-average assumptions utilized to determine such values are presented in the following table: Year Ended December 31, 2017 2016 2015 Risk-free interest rate 2.08 % 1.75 % 1.96 % Expected volatility 42 % 45 % 46 % Expected life (in years) 6.1 6.2 6.2 Expected dividend yield — — —

Intangible Assets and Goodwill

Intangible Assets and Goodwill (Tables)	12 Months Ended
	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Finite Lived Intangible Assets	Finite-lived intangible assets consist of the following as of December 31, 2017: Description Weighted Gross Accumulated Net Developed technology 7 $ 14,223 $ 9,431 $ 4,792 Customer relationships 11 6,257 2,813 3,444 Non-compete 3 1,912 1,912 — Tradename 3 368 368 — Total $ 22,760 $ 14,524 $ 8,236 Finite-lived intangible assets consist of the following as of December 31, 2016: Description Weighted Gross Accumulated Net Developed technology 7 $ 14,223 $ 7,400 $ 6,823 Customer relationships 11 6,257 2,147 4,110 Non-compete 3 1,912 1,875 37 Tradename 3 368 368 — Total $ 22,760 $ 11,790 $ 10,970
Estimated Remaining Amortization Expense	The estimated remaining amortization expense for each of the five succeeding years and thereafter is as follows: Year Ending December 31, Amount 2018 $ 2,317 2019 1,603 2020 1,585 2021 1,327 2022 370 2023 and thereafter 1,034 Total $ 8,236

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Company's Financial Instruments Carried at Fair Value Using Lowest Level of Input	The following tables set forth the Company’s financial instruments carried at fair value using the lowest level of input as of December 31, 2017 and 2016: December 31, 2017 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 8,160 $ — $ — $ 8,160 Total assets $ 8,160 $ — $ — $ 8,160 December 31, 2016 Quoted Prices in Active Markets for Identical Items (Level 1) Significant Other Observable (Level 2) Significant Unobservable Inputs (Level 3) Total Assets: Money market funds $ 12,871 $ — $ — $ 12,871 Total assets $ 12,871 $ — $ — $ 12,871

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Future Minimum Rental Commitments Under Operating Leases	Future minimum rental commitments under operating leases at December 31, 2017 are as follows: Year Ending December 31, Operating 2018 $ 8,384 2019 6,990 2020 5,165 2021 4,952 2022 2,013 2023 and thereafter 2,094 $ 29,598
Future Minimum Rental Commitments Under Capital Leases	Future minimum rental commitments under capital leases at December 31, 2017 are as follows: Year Ending December 31, Capital Lease 2018 $ 231 Less – interest on capital leases 3 $ 228

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2017
Equity [Abstract]
Summary of Stock Option Activity	The following is a summary of the stock option activity for all stock option plans during the year ended December 31, 2017: Number of Shares Weighted-Average Exercise Weighted-Average Remaining Contractual Term (In Years) Aggregate Intrinsic Value (1) Outstanding at December 31, 2016 4,150,584 $ 7.17 Granted 483,727 7.03 Exercised (229,127 ) 2.27 $ 1,243 Cancelled (480,871 ) 8.05 Outstanding at December 31, 2017 3,924,313 $ 7.33 6.30 $ 3,783 Exercisable at December 31, 2017 2,430,839 $ 7.23 5.37 $ 3,052 (1) The aggregate intrinsic value was calculated based on the positive difference between the estimated fair value of the Company’s common stock on December 31, 2017 of $7.10 per share, or the date of exercise, as appropriate, and the exercise price of the underlying options.
Summary of RSU Activity	The following table summarizes the RSU activity during the year ended December 31, 2017: Shares Weighted Average Grant Date Fair Value Unvested by December 31, 2016 1,902,577 $ 7.84 Granted 1,189,973 6.95 Vested and issued (561,133 ) 7.47 Cancelled (312,713 ) 7.80 Unvested by December 31, 2017 2,218,704 $ 7.44
Schedule of Shares of Common Stock Reserved for Future Issuance	At December 31, 2017, the Company has reserved the following shares of common stock for future issuance: December 31, Common stock options outstanding 3,924,313 Restricted stock unit awards outstanding 2,218,704 Shares available for issuance under all stock-based compensation plans 1,429,022 Total shares of authorized common stock reserved for future issuance 7,572,039

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Loss before Provision for Income Taxes	Loss before the provision for income taxes consists of the following: Year Ended December 31, 2017 2016 2015 Domestic $ (20,528 ) $ (10,756 ) $ (8,028 ) Foreign 1,379 1,180 839 Total $ (19,149 ) $ (9,576 ) $ (7,189 )
Schedule of Provision for Income Taxes	The provision for income taxes in the accompanying consolidated financial statements consists of the following: Year Ended December 31, 2017 2016 2015 Current provision: Federal $ — $ — $ — State 21 33 29 Foreign 311 424 389 Total current 332 457 418 Deferred (benefit): Federal — — — State — — — Foreign 38 (47 ) (27 ) Total deferred 38 (47 ) (27 ) Total provision $ 370 $ 410 $ 391
Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate	A reconciliation of the U.S. federal statutory rate to the Company’s effective tax rate is as follows: Year Ended December 31, 2017 2016 2015 Tax at statutory rates (34.0 )% (34.0 )% (34.0 )% State income taxes (4.1 ) (6.1 ) 3.4 Change in tax rate 103.9 0.1 3.0 Permanent differences 7.1 11.7 34.7 Foreign rate differential (0.7 ) (1.1 ) (1.2 ) Research and development credits (3.7 ) (6.7 ) (9.6 ) Change in valuation allowance (66.3 ) 40.8 7.7 Other, net (0.3 ) (0.4 ) 1.4 Effective tax rate 1.9 % 4.3 % 5.4 %
Schedule of Income Tax Effect of Each Type of Temporary Difference and Carryforward	The approximate income tax effect of each type of temporary difference and carryforward as of December 31, 2017 and 2016 is as follows: As of December 31, 2017 2016 Deferred tax assets: Net operating loss carry-forwards $ 37,964 $ 45,850 Tax credit carry-forwards 9,173 7,654 Stock-based compensation 1,856 2,236 Fixed Assets 267 154 Account receivable reserves 189 219 Accrued compensation 851 2,232 Capitalized start-up 138 279 Other temporary differences 371 761 Total deferred tax assets 50,809 59,385 Deferred tax liabilities: Intangible assets (3,611 ) (5,962 ) Total deferred tax liabilities (3,611 ) (5,962 ) Valuation allowance (47,111 ) (53,302 ) Net deferred tax assets $ 87 $ 121

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2017
Payables and Accruals [Abstract]
Components of Accrued Expenses	Accrued expenses consist of the following: December 31, 2017 2016 Accrued payroll and related benefits $ 4,436 $ 7,089 Accrued sales and other taxes 1,363 2,275 Accrued professional fees and outside contractors 2,021 1,082 Accrued content delivery 2,390 2,013 Accrued other liabilities 3,411 3,246 Total $ 13,621 $ 15,705

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2017
Segment Reporting [Abstract]
Total Revenue to Unaffiliated Customers by Geographic Area, Based on Location of Customer	Total revenue to unaffiliated customers by geographic area, based on the location of the customer, was as follows: Year Ended December 31, 2017 2016 2015 Revenue: North America $ 91,358 $ 92,912 $ 86,106 Europe 24,425 25,196 25,380 Japan 16,881 15,230 9,061 Asia Pacific 22,539 15,617 12,380 Other 710 1,311 1,779 Total revenue $ 155,913 $ 150,266 $ 134,706

Quarterly Financial Data (Table

Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Data	The following table presents certain unaudited quarterly financial information for the eight quarters in the period ended December 31, 2017. For the three months ended: Dec. 31, Sep. 30, Jun. 30, Mar. 31, Dec. 31, Sep. 30, Jun. 30, Mar. 31, Revenue $ 40,101 $ 39,487 $ 38,753 $ 37,572 $ 38,625 $ 38,389 $ 36,960 $ 36,292 Gross profit 23,783 22,983 22,175 22,354 23,272 24,612 23,507 23,028 Loss from operations (1,331 ) (5,349 ) (7,884 ) (5,132 ) (3,684 ) (1,552 ) (2,211 ) (1,531 ) Net loss (1,372 ) (5,396 ) (7,678 ) (5,073 ) (4,363 ) (1,618 ) (2,398 ) (1,607 ) Basic net loss per share (0.04 ) (0.16 ) (0.22 ) (0.15 ) (0.13 ) (0.05 ) (0.07 ) (0.05 ) Diluted net loss per share (0.04 ) (0.16 ) (0.22 ) (0.15 ) (0.13 ) (0.05 ) (0.07 ) (0.05 )

Business Description - Addition

Business Description - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2017Subsidiaries
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of wholly-owned subsidiaries	9

Summary of Significant Accoun31

Summary of Significant Accounting Policies - Additional Information (Detail)	Dec. 31, 2016USD ($)Customer	Feb. 29, 2016USD ($)	Dec. 31, 2018	Dec. 31, 2017USD ($)Customer$ / sharesPlans	Dec. 31, 2016USD ($)Customer$ / shares	Dec. 31, 2015USD ($)Customer$ / shares	Mar. 31, 2017USD ($)
Accounting Policies [Line Items]
Short-term investments	$ 0			$ 0	$ 0
Long-term investments	$ 0			$ 0	$ 0
Number of customers accounted for more than 10% of total revenue | Customer	0			0	0	0
Threshold percentage of total revenues required for major customer classification				10.00%	10.00%	10.00%
Number of customers accounted for more than 10% of net accounts receivable | Customer	0			0	0
Capitalized software development costs	$ 4,038,000			$ 3,239,000	$ 4,038,000	$ 1,488,000
Amortization of capitalized internal-use software development costs				1,867,000	690,000	469,000
Depreciation and amortization, expense				4,523,000	4,860,000	5,575,000
Repayment of equipment financing				307,000	271,000	$ 1,704,000
Recorded liabilities for uncertain tax position	0			$ 0	$ 0
Number of stock-based compensation plans | Plans				4
Expected dividend yield				$ 0
Weighted-average fair value of options granted | $ / shares				$ 3.08	$ 4.01	$ 3.10
Stock-based compensation				$ 7,243,000	$ 6,012,000	$ 6,014,000
Unrecognized stock-based compensation expense				$ 18,232,000
Unrecognized compensation cost, recognition period				2 years 22 days
Incremental stock-based compensation expense arising from the modification				$ 186,000
Additional of stock-based compensation expense due to accelerates vesting schedule				220,000
Stock based compensation expense, estimated forfeiture rate					17.00%	17.00%
Advertising costs				$ 2,485,000	$ 2,137,000	$ 2,081,000
Federal corporate tax rate				34.00%	34.00%	34.00%
Accumulated Deficit [Member]
Accounting Policies [Line Items]
Cumulative effect of change due to new accounting pronouncement				$ (197,000)
Additional Paid-in Capital [Member]
Accounting Policies [Line Items]
Cumulative effect of change due to new accounting pronouncement				$ 197,000
ASU 2016-09 [Member] | Accumulated Deficit [Member]
Accounting Policies [Line Items]
Cumulative effect of change due to new accounting pronouncement							$ 197,000
ASU 2016-09 [Member] | Additional Paid-in Capital [Member]
Accounting Policies [Line Items]
Cumulative effect of change due to new accounting pronouncement							$ 197,000
December Equipment Financing Agreement [Member]
Accounting Policies [Line Items]
Debt issuance date				Dec. 31, 2015
Computer equipment and support purchased				$ 604,000
Repayment of equipment financing		$ 604,000
Scenario, Forecast [Member]
Accounting Policies [Line Items]
Federal corporate tax rate			21.00%
Facility Closing [Member]
Accounting Policies [Line Items]
Loss on disposal of assets	150,000			150,000
Settlement amount under termination agreement upon facility closure	695,000			695,000
Disposal group, cost of revenue	845,000			$ 845,000
Software [Member]
Accounting Policies [Line Items]
Estimated Useful Life (in Years)				3 years
Computer Equipment [Member]
Accounting Policies [Line Items]
Estimated Useful Life (in Years)				3 years
Computer Equipment [Member] | Facility Closing [Member]
Accounting Policies [Line Items]
Disposal of computer equipment	$ 1,900,000				$ 1,900,000

Summary of Significant Accoun32

Summary of Significant Accounting Policies - Schedule of Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Investment Holdings [Line Items]
Amortized Cost	$ 26,132	$ 36,813
Fair Market Value	26,132	36,813
Balance Per Balance Sheet	26,132	36,813
Cash [Member]
Investment Holdings [Line Items]
Amortized Cost	17,972	23,942
Fair Market Value	17,972	23,942
Balance Per Balance Sheet	17,972	23,942
Money Market Funds [Member]
Investment Holdings [Line Items]
Amortized Cost	8,160	12,871
Fair Market Value	8,160	12,871
Balance Per Balance Sheet	$ 8,160	$ 12,871

Summary of Significant Accoun33

Summary of Significant Accounting Policies - Summary of Changes in Company's Allowance for Doubtful Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Balance at Beginning of Period	$ 154	$ 332	$ 181
Provision	203	230	408
Write-offs	(211)	(408)	(257)
Balance at End of Period	$ 146	$ 154	$ 332

Summary of Significant Accoun34

Summary of Significant Accounting Policies - Property and Equipment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 38,915	$ 36,595
Less accumulated depreciation and amortization	29,772	27,331
Property and equipment, net	$ 9,143	9,264
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in Years)	3 years
Property and equipment, gross	$ 17,157	18,750
Software [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in Years)	3 years
Property and equipment, gross	$ 17,996	14,648
Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in Years)	3 years
Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in Years)	6 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in Years)	5 years
Property and equipment, gross	$ 2,396	1,995
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,366	$ 1,202

Summary of Significant Accoun35

Summary of Significant Accounting Policies - Potentially Dilutive Common Shares Excluded from Computation of Dilutive Net Loss per Share (Detail) - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Options Outstanding [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive common shares excluded from the computation of weighted-average shares outstanding	4,127	4,291	4,139
RSUs [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive common shares excluded from the computation of weighted-average shares outstanding	2,050	1,668	1,043
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially dilutive common shares excluded from the computation of weighted-average shares outstanding		19	28

Summary of Significant Accoun36

Summary of Significant Accounting Policies - Weighted Average Assumptions Utilized (Detail) - Stock Compensation Plan [Member]	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.08%	1.75%	1.96%
Expected volatility	42.00%	45.00%	46.00%
Expected life (in years)	6 years 1 month 6 days	6 years 2 months 12 days	6 years 2 months 12 days
Expected dividend yield	0.00%	0.00%	0.00%

Intangible Assets and Goodwil37

Intangible Assets and Goodwill - Finite Lived Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Gross Carrying Value	$ 22,760	$ 22,760
Finite Lived Intangible Assets Accumulated Amortization	14,524	11,790
Finite Lived Intangible Assets Net Carrying Value	$ 8,236	$ 10,970
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Weighted Average Estimated Useful Life (in years)	7 years	7 years
Finite Lived Intangible Assets Gross Carrying Value	$ 14,223	$ 14,223
Finite Lived Intangible Assets Accumulated Amortization	9,431	7,400
Finite Lived Intangible Assets Net Carrying Value	$ 4,792	$ 6,823
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Weighted Average Estimated Useful Life (in years)	11 years	11 years
Finite Lived Intangible Assets Gross Carrying Value	$ 6,257	$ 6,257
Finite Lived Intangible Assets Accumulated Amortization	2,813	2,147
Finite Lived Intangible Assets Net Carrying Value	$ 3,444	$ 4,110
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Weighted Average Estimated Useful Life (in years)	3 years	3 years
Finite Lived Intangible Assets Gross Carrying Value	$ 1,912	$ 1,912
Finite Lived Intangible Assets Accumulated Amortization	$ 1,912	1,875
Finite Lived Intangible Assets Net Carrying Value		$ 37
Tradename [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Weighted Average Estimated Useful Life (in years)	3 years	3 years
Finite Lived Intangible Assets Gross Carrying Value	$ 368	$ 368
Finite Lived Intangible Assets Accumulated Amortization	$ 368	$ 368

Intangible Assets and Goodwil38

Intangible Assets and Goodwill - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense related to intangible assets	$ 2,734	$ 3,116	$ 3,112
Goodwill	$ 50,776	$ 50,776

Intangible Assets and Goodwil39

Intangible Assets and Goodwill - Estimated Remaining Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
2,018	$ 2,317
2,019	1,603
2,020	1,585
2,021	1,327
2,022	370
2023 and thereafter	1,034
Total	$ 8,236	$ 10,970

Fair Value Measurements - Compa

Fair Value Measurements - Company's Financial Instruments Carried at Fair Value Using Lowest Level of Input (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	$ 8,160	$ 12,871
Total assets	8,160	12,871
Quoted Prices in Active Markets for Identical Items (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	8,160	12,871
Total assets	$ 8,160	$ 12,871

Commitments and Contingencies -

Commitments and Contingencies - Future Minimum Rental Commitments Under Operating Lease (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,018	$ 8,384
2,019	6,990
2,020	5,165
2,021	4,952
2,022	2,013
2023 and thereafter	2,094
Total	$ 29,598

Commitments and Contingencies42

Commitments and Contingencies - Additional Information (Detail)	Dec. 01, 2017Patents	Oct. 26, 2017Patents	Dec. 31, 2016USD ($)	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Commitment And Contingencies [Line Items]
Option to renewal description				The Company's primary office lease has the option to renew the lease for two successive periods of five years each.
Deferred rent and rent incentives			$ 1,579,000	$ 1,464,000	$ 1,579,000
Deferred rent and rent incentives, noncurrent			1,320,000	1,102,000	1,320,000
Rent expense				6,608,000	6,334,000	$ 6,831,000
Income from sublease rental				285,000	$ 219,000	$ 185,000
Total assets under incremental capital leases				1,200,000
Accumulated amortization related to capital leases				940,000,000
Non-cancelable commitments due in 2018				15,833,000
Non-cancelable commitments due in 2019				7,823,000
Non-cancelable commitments due in 2020				173,000
Cost for Guarantees and indemnities				0
Realtime Adaptive Streaming LLC [Member]
Commitment And Contingencies [Line Items]
Complaint filed against patents allegedly infringed | Patents	2	5
Facility Closing [Member]
Commitment And Contingencies [Line Items]
Loss on disposal of assets			150,000	150,000
Disposal group, cost of revenue			845,000	845,000
Settlement amount under termination agreement upon facility closure			$ 695,000	695,000
Letter of Credit [Member]
Commitment And Contingencies [Line Items]
Debt instrument, face amount				$ 2,404,000

Commitments and Contingencies43

Commitments and Contingencies - Future Minimum Rental Commitments Under Capital Leases (Detail) $ in Thousands	Dec. 31, 2017USD ($)
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,018	$ 231
Less - interest on capital leases	3
Capital Lease Commitments	$ 228

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) $ / shares in Units, $ in Thousands	Dec. 31, 2017shares	Dec. 31, 2016shares	Aug. 31, 2016shares	Sep. 30, 2006Lenders$ / sharesshares	Dec. 31, 2017Plansshares	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014Employeesshares	Dec. 31, 2012Employeesshares	Feb. 28, 2012USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans | Plans					4
Number of shares reserved for issuance under the equity incentive plan	7,572,039				7,572,039
Restricted stock units, number of common shares called by RSUs									77,100
Number of new employees pursuant to the RSU Plan | Employees									15
Number of shares available for issuance	1,429,022				1,429,022
Aggregate Intrinsic Value, Exercised | $						$ 5,159	$ 281
Shares exercised during period			28,028						18,685
Shares issued during period, share-based compensation			20,528						15,781
Unicorn Media [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares received in exchange of liabilities released	135,000	135,000
Series B Redeemable Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares called by warrants				46,713
Exercise price of warrants | $ / shares				$ 3.21
Number of lenders to whom warrants issued | Lenders				2
Warrants expiration date				Aug. 31, 2016
Warrants, fair value | $										$ 395
2004 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under the equity incentive plan	7,397,843				7,397,843
Shares transferred in share based compensation plan									124,703
2012 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under the equity incentive plan	1,700,000				1,700,000
Shares reserved for issuance under the equity incentive plan, annual increase as a percentage of outstanding shares at year end					4.00%
Overhang limit for number of shares reserved for issuance under the equity incentive plan					30.00%
2012 Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, vesting period					3 months
2012 Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, vesting period					4 years
2014 Stock Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of new employees pursuant to the RSU Plan | Employees								61
Equity incentive plan, shares of common stock authorized								578,350

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at December 31, 2017	3,924,313
Aggregate Intrinsic Value, Exercised		$ 5,159	$ 281
Options Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at December 31, 2016	4,150,584
Shares, Granted	483,727
Shares, Exercised	(229,127)
Shares, Cancelled	(480,871)
Shares, Outstanding at December 31, 2017	3,924,313	4,150,584
Shares, Exercisable at December 31, 2017	2,430,839
Weighted-Average Exercise Price, Outstanding at December 31, 2016	$ 7.17
Weighted-Average Exercise Price, Granted	7.03
Weighted-Average Exercise Price, Exercised	2.27
Weighted-Average Exercise Price, Cancelled	8.05
Weighted-Average Exercise Price, Outstanding at December 31, 2017	7.33	$ 7.17
Weighted-Average Exercise Price, Exercisable at December 31, 2017	$ 7.23
Weighted-Average Remaining Contractual Term, Outstanding at December 31, 2017	6 years 3 months 19 days
Weighted-Average Remaining Contractual Term, Exercisable at December 31, 2017	5 years 4 months 13 days
Aggregate Intrinsic Value, Exercised	$ 1,243
Aggregate Intrinsic Value, Outstanding at December 31, 2017	3,783
Aggregate Intrinsic Value, Exercisable at December 31, 2017	$ 3,052

Stockholders' Equity - Summar46

Stockholders' Equity - Summary of Stock Option Activity (Parenthetical) (Detail)	Dec. 31, 2017$ / shares
Options Outstanding [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate Intrinsic Value, Estimated per share fair value of common stock	$ 7.10

Stockholders' Equity - Summar47

Stockholders' Equity - Summary of RSU Activity (Detail)	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Unvested Shares, Ending Balance	2,218,704
RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Unvested Shares, Beginning Balance	1,902,577
Granted	1,189,973
Vested and issued	(561,133)
Cancelled	(312,713)
Unvested Shares, Ending Balance	2,218,704
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 7.84
Weighted Average Grant Date Fair Value, Granted | $ / shares	6.95
Weighted Average Grant Date Fair Value, Vested and issued | $ / shares	7.47
Weighted Average Grant Date Fair Value, Cancelled | $ / shares	7.80
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 7.44

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Shares of Common Stock Reserved for Future Issuance (Detail)	Dec. 31, 2017shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Common stock options outstanding	3,924,313
Restricted stock unit awards outstanding	2,218,704
Shares available for issuance under all stock-based compensation plans	1,429,022
Total shares of authorized common stock reserved for future issuance	7,572,039

Income Taxes - Schedule of Loss

Income Taxes - Schedule of Loss before Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure By Jurisdiction [Abstract]
Domestic	$ (20,528)	$ (10,756)	$ (8,028)
Foreign	1,379	1,180	839
Loss before income taxes	$ (19,149)	$ (9,576)	$ (7,189)

Income Taxes - Schedule of Prov

Income Taxes - Schedule of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current provision:
Federal	$ 0	$ 0	$ 0
State	21	33	29
Foreign	311	424	389
Total current	332	457	418
Deferred (benefit):
Federal	0	0	0
State	0	0	0
Foreign	38	(47)	(27)
Total deferred	38	(47)	(27)
Total provision	$ 370	$ 410	$ 391

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of U.S. Federal Statutory Rate to Effective Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Tax at statutory rates	(34.00%)	(34.00%)	(34.00%)
State income taxes	(4.10%)	(6.10%)	3.40%
Change in tax rate	103.90%	0.10%	3.00%
Permanent differences	7.10%	11.70%	34.70%
Foreign rate differential	(0.70%)	(1.10%)	(1.20%)
Research and development credits	(3.70%)	(6.70%)	(9.60%)
Change in valuation allowance	(66.30%)	40.80%	7.70%
Other, net	(0.30%)	(0.40%)	1.40%
Effective tax rate	1.90%	4.30%	5.40%

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Effect of Each Type of Temporary Difference and Carryforward (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Net operating loss carry-forwards	$ 37,964	$ 45,850
Tax credit carry-forwards	9,173	7,654
Stock-based compensation	1,856	2,236
Fixed Assets	267	154
Account receivable reserves	189	219
Accrued compensation	851	2,232
Capitalized start-up costs	138	279
Other temporary differences	371	761
Total deferred tax assets	50,809	59,385
Deferred tax liabilities:
Intangible assets	(3,611)	(5,962)
Total deferred tax liabilities	(3,611)	(5,962)
Valuation allowance	(47,111)	(53,302)
Net deferred tax assets	$ 87	$ 121

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Line Items]
Decrease in valuation allowance		$ (6,200,000)
Valuation allowance		$ 47,111,000	$ 53,302,000
Net operating losses carried forward, expiration date		Dec. 31, 2037
Research and development tax credit, expiration date		Dec. 31, 2037
Recorded liabilities for uncertain tax position		$ 0	0
Accrued interest or penalties related to uncertain tax positions		$ 0	$ 0
Federal corporate tax rate		34.00%	34.00%	34.00%
Federal [Member]
Income Taxes [Line Items]
Net operating losses		$ 161,900,000
Research and development tax credits		6,100,000
Scenario, Forecast [Member]
Income Taxes [Line Items]
Federal corporate tax rate	21.00%
Japan [Member]
Income Taxes [Line Items]
Valuation allowance		0	$ 0
State [Member]
Income Taxes [Line Items]
Net operating losses		66,700,000
Research and development tax credits		$ 3,900,000

Debt - Additional Information (

Debt - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 29, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Debt instrument term		If the outstanding principal during any month is at least $15.0 million, the Company must also maintain a minimum net income threshold based on non-GAAP operating measures.
Debt amount outstanding		$ 0
Repayment of equipment financing		307,000	$ 271,000	$ 1,704,000
December Equipment Financing Agreement [Member]
Debt Instrument [Line Items]
Debt amount outstanding		$ 26,000
Debt issuance date		Dec. 31, 2015
Computer equipment and support purchased		$ 604,000
Repayment of equipment financing	$ 604,000
Repayment period of obligation under the agreement		2 years
Secured Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit, agreement start date		Nov. 19, 2015
Line of credit maximum borrowing capacity		$ 20,000,000
Percentage points added to prime rate or LIBOR		2.50%
Minimum [Member]
Debt Instrument [Line Items]
Minimum outstanding principal threshold limit		$ 15,000,000

Accrued Expenses - Components o

Accrued Expenses - Components of Accrued Expenses (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accrued Liabilities, Current [Abstract]
Accrued payroll and related benefits	$ 4,436	$ 7,089
Accrued sales and other taxes	1,363	2,275
Accrued professional fees and outside contractors	2,021	1,082
Accrued content delivery	2,390	2,013
Accrued other liabilities	3,411	3,246
Total	$ 13,621	$ 15,705

Segment Information - Additiona

Segment Information - Additional Information (Detail) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017USD ($)	Sep. 30, 2017USD ($)	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Dec. 31, 2017USD ($)Segment	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segment | Segment									1
Revenues from customers	$ 40,101	$ 39,487	$ 38,753	$ 37,572	$ 38,625	$ 38,389	$ 36,960	$ 36,292	$ 155,913	$ 150,266	$ 134,706
Revenue percentage from other country to the company's total revenue									10.00%	10.00%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from customers									$ 85,459	$ 87,302	80,455
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from customers									$ 16,881	$ 15,230	$ 9,061

Segment Information - Total Rev

Segment Information - Total Revenue to Unaffiliated Customers by Geographic Area, Based on Location of Customer (Detail) - 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
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 40,101	$ 39,487	$ 38,753	$ 37,572	$ 38,625	$ 38,389	$ 36,960	$ 36,292	$ 155,913	$ 150,266	$ 134,706
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									91,358	92,912	86,106
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									24,425	25,196	25,380
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									16,881	15,230	9,061
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									22,539	15,617	12,380
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 710	$ 1,311	$ 1,779

401(k) Savings Plan - Additiona

401(k) Savings Plan - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Retirement Benefits [Abstract]
Contribution made under the plan	$ 425	$ 336	$ 276

Quarterly Financial Data - Summ

Quarterly Financial Data - Summary of Quarterly Financial Data (Detail) - 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]
Revenue	$ 40,101	$ 39,487	$ 38,753	$ 37,572	$ 38,625	$ 38,389	$ 36,960	$ 36,292	$ 155,913	$ 150,266	$ 134,706
Gross profit	23,783	22,983	22,175	22,354	23,272	24,612	23,507	23,028	91,295	94,419	88,229
Loss from operations	(1,331)	(5,349)	(7,884)	(5,132)	(3,684)	(1,552)	(2,211)	(1,531)	(19,696)	(8,978)	(6,931)
Net loss	$ (1,372)	$ (5,396)	$ (7,678)	$ (5,073)	$ (4,363)	$ (1,618)	$ (2,398)	$ (1,607)	$ (19,519)	$ (9,986)	$ (7,580)
Basic net loss per share	$ (0.04)	$ (0.16)	$ (0.22)	$ (0.15)	$ (0.13)	$ (0.05)	$ (0.07)	$ (0.05)
Diluted net loss per share	$ (0.04)	$ (0.16)	$ (0.22)	$ (0.15)	$ (0.13)	$ (0.05)	$ (0.07)	$ (0.05)