Telaria (TLRA) 10-K16 Mar 202019 FY Annual reportFinancial data

Company Profile

Cover Page

Cover Page - USD ($) $ in Millions	12 Months Ended
Cover Page - USD ($) $ in Millions	Dec. 31, 2019	Mar. 12, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-35982
Entity Registrant Name	TELARIA, INC.
Entity Central Index Key	0001375796
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-5480343
Entity Address, Address Line One	222 Broadway
Entity Address, Address Line Two	16th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10038
City Area Code	646
Local Phone Number	723-5300
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	TLRA
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 325.9
Entity Common Stock, Shares Outstanding		48,047,492
Documents Incorporated by Reference	Portions of the information called for by Part III of this Annual Report on Form 10-K, to the extent not set forth herein, are incorporated herein by reference from the definitive proxy statement relating to our 2020 annual meeting of stockholders. The proxy statement will be filed with the U.S. Securities and Exchange Commission not later than 120 days after December 31, 2019.

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 54,164	$ 47,659
Accounts receivable, net	157,317	104,387
Prepaid expenses and other current assets	4,605	3,381
Total current assets	216,086	155,427
Long-term assets:
Operating lease right-of-use asset, net of amortization	23,793	0
Property and equipment, net	1,990	2,789
Intangible assets, net	3,548	4,379
Goodwill	9,403	9,478
Deferred tax asset	104	193
Other assets	1,926	2,440
Total long-term assets	40,764	19,279
Total assets	256,850	174,706
Current liabilities:
Accounts payable and accrued expenses	168,818	109,991
Operating lease liability, current portion	5,487	0
Deferred rent, current portion	0	797
Contingent consideration on acquisition	0	1,500
Other current liabilities	349	886
Total current liabilities	174,654	113,174
Long-term liabilities:
Operating lease liability, net of current portion	24,046	0
Deferred rent, net of current portion	0	5,759
Deferred tax liabilities	1,050	1,153
Other liabilities	323	225
Total liabilities	200,073	120,311
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.0001 par value: 250,000,000 shares authorized as of December 31, 2019 and 2018, respectively; 59,481,057 and 56,956,935 shares issued and 46,916,817 and 44,392,695 shares outstanding as of December 31, 2019 and 2018, respectively	4	4
Treasury stock, 12,564,240 shares at cost as of December 31, 2019 and 2018, respectively	(31,980)	(31,980)
Additional paid-in capital	304,781	293,154
Accumulated other comprehensive loss	(1,187)	(949)
Accumulated deficit	(214,841)	(205,834)
Total stockholders’ equity	56,777	54,395
Total liabilities and stockholders’ equity	$ 256,850	$ 174,706

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, par value (usd per share)	$ 0.0001	$ 0.0001
Common stock, authorized (shares)	250,000,000	250,000,000
Common stock, issued (shares)	59,481,057	56,956,935
Common stock, outstanding (shares)	46,916,817	44,392,695
Treasury stock (shares)	12,564,240	12,564,240

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	12 Months Ended
Consolidated Statements of Operations - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Revenue	$ 68,038,000	$ 55,165,000	$ 43,799,000
Cost of revenue	13,625,000	6,844,000	3,448,000
Gross profit	54,413,000	48,321,000	40,351,000
Operating expenses:
Technology and development	11,140,000	9,925,000	8,586,000
Sales and marketing	25,503,000	25,424,000	28,073,000
General and administrative	29,200,000	20,187,000	20,197,000
Restructuring costs	0	149,000	0
Depreciation and amortization	1,486,000	3,705,000	4,586,000
Mark-to-market	0	57,000	148,000
Total operating expenses	67,329,000	59,447,000	61,590,000
Loss from continuing operations	(12,916,000)	(11,126,000)	(21,239,000)
Interest (expense) and other income, net:
Interest expense	0	(89,000)	(78,000)
Other income, net	4,385,000	1,975,000	1,270,000
Total interest (expense) and other income, net	4,385,000	1,886,000	1,192,000
Loss from continuing operations before income taxes	(8,531,000)	(9,240,000)	(20,047,000)
Provision (benefit) from income taxes	476,000	(10,000)	(347,000)
Loss from continuing operations, net of income taxes	(9,007,000)	(9,230,000)	(19,700,000)
Gain (loss) on sale of discontinued operations, net of income taxes	0	(136,000)	14,626,000
Income from discontinued operations, net of income taxes	0	0	7,301,000
Total income (loss) from discontinued operations, net of income taxes	0	(136,000)	21,927,000
Net income (loss)	$ (9,007,000)	$ (9,366,000)	$ 2,227,000
Net income (loss) per share - basic and diluted
Loss from continuing operations, net of income taxes (usd per share)	$ (0.20)	$ (0.18)	$ (0.39)
Income from discontinued operations, net of income taxes (usd per share)	0	0	0.43
Net income (loss) (usd per share)	$ (0.20)	$ (0.18)	$ 0.04
Weighted-average number of shares of common stock outstanding:
Basic and diluted weighted-average number of shares outstanding (shares)	45,864,500	51,764,506	50,511,366

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (9,007)	$ (9,366)	$ 2,227
Other comprehensive income (loss):
Foreign currency translation adjustments	(238)	(717)	99
Comprehensive income (loss) attributable to common stockholders	$ (9,245)	$ (10,083)	$ 2,326

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2017	$ 83,139	$ 5	$ (8,443)	$ 288,277	$ (232)	$ (196,468)
Beginning balance (shares) at Dec. 31, 2017		55,136,038	(3,845,496)
Increase (Decrease) in Stockholders' Equity
Exercise of warrants and stock options awards	1,845			1,845
Exercise of warrants and stock options awards (shares)		856,441
Stock-based compensation expense	3,820			3,820
Common stock issued for settlement of restricted stock units net of shares withheld to satisfy income tax withholding obligations	(1,312)			(1,312)
Common stock issued for settlement of restricted stock units net of shares withheld to satisfy income tax withholding obligations (shares)		786,693
Common stock issuance in connection with employee stock purchase plan	523			523
Common stock issuance in connection with employee stock purchase plan (shares)		177,763
Treasury stock — repurchase of stock	(23,537)	$ (1)	$ (23,537)	1
Treasury stock — repurchase of stock (shares)			(8,718,744)
Net income (loss)	(9,366)					(9,366)
Foreign currency translation adjustment	(717)				(717)
Ending balance at Dec. 31, 2018	54,395	$ 4	$ (31,980)	293,154	(949)	(205,834)
Ending balance (shares) at Dec. 31, 2018		56,956,935	(12,564,240)
Increase (Decrease) in Stockholders' Equity
Exercise of warrants and stock options awards	$ 6,749			6,749
Exercise of warrants and stock options awards (shares)	1,689,161	1,693,661
Stock-based compensation expense	$ 5,759			5,759
Common stock issued for settlement of restricted stock units net of shares withheld to satisfy income tax withholding obligations	(1,391)			(1,391)
Common stock issued for settlement of restricted stock units net of shares withheld to satisfy income tax withholding obligations (shares)		692,286
Common stock issuance in connection with employee stock purchase plan	511			511
Common stock issuance in connection with employee stock purchase plan (shares)		138,175
Net income (loss)	(9,007)					(9,007)
Foreign currency translation adjustment	(238)				(238)
Ending balance at Dec. 31, 2019	$ 56,777	$ 4	$ (31,980)	$ 304,781	$ (1,187)	$ (214,841)
Ending balance (shares) at Dec. 31, 2019		59,481,057	(12,564,240)

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Common stock withheld to satisfy income tax withholding obligations relating to restricted stock units (shares)	278,799	308,533

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net loss from continuing operations, net of income taxes	$ (9,007)	$ (9,230)	$ (19,700)
Net income (loss) from discontinued operations, net of income taxes	0	(136)	21,927
Adjustments required to reconcile net (loss) income to net cash provided by (used in) operating activities:
Depreciation and amortization expense	1,486	3,705	7,760
Gain on sale of discontinued operations, before income taxes	0	0	(14,958)
Amortization of acquired technology	190	0	0
Bad debt expense	27	190	356
Amortization of operating lease right-of-use-asset	4,035	0	0
Mark-to-market expense	0	0	148
Compensation expense related to the acquisition-contingent consideration	0	0	1,810
Deferred tax expense (benefit)	6	(4)	(442)
Loss on disposal of property and equipment	53	21	392
Stock based compensation expense	5,759	3,820	5,394
Net change in operating assets and liabilities:
Increase in accounts receivable	(53,616)	(43,283)	(19,891)
Decrease in contingent consideration on acquisition	0	0	(4,753)
Increase in prepaid expenses, other current assets and other long-term assets	(2,087)	(1,781)	(3,157)
Increase in accounts payable and accrued expenses	59,407	48,779	13,831
Increase (decrease) in other current liabilities	710	322	(126)
Decrease in operating lease liability	(4,788)	0	0
Increase (decrease) in deferred rent and security deposits payable	7	488	(629)
(Decrease) increase in deferred income	0	(619)	1,407
Increase (decrease) in other liabilities	100	(512)	0
Net cash provided by (used in) in operating activities	2,282	1,760	(10,631)
Cash flows from investing activities:
Purchase of property and equipment	(161)	(2,740)	(1,113)
Purchase of patents not subject to amortization	(41)	0	0
Acquisition, net of cash acquired	0	(4,771)	0
Cash received from sale of discontinued operations	0	0	49,000
Expenses paid with respect to sale of discontinued operations	0	0	(1,954)
Net cash (used in) provided by investing activities	(202)	(7,511)	45,933
Cash flows from financing activities:
Proceeds from issuance of common stock under employee stock purchase plan	511	523	446
Payment of contingent consideration on acquisition	(1,500)	0	0
Proceeds from the exercise of stock option awards	6,749	1,845	699
Principal portion of capital lease payments	0	0	(214)
Treasury stock — repurchase of stock	0	(23,537)	(2,406)
Tax withholdings related to net share settlements of restricted stock units	(1,391)	(1,312)	(1,842)
Net cash provided by (used in) financing activities	4,369	(22,481)	(3,317)
Net increase (decrease) in cash and cash equivalents	6,449	(28,232)	31,985
Effect of exchange rate changes in cash and cash equivalents	56	(429)	405
Cash, cash equivalents at beginning of year	47,659	76,320	43,930
Cash, cash equivalents at end of year	$ 54,164	$ 47,659	$ 76,320

Organization and Description of

Organization and Description of Business	12 Months Ended
Organization and Description of Business	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	Organization and Description of Business Telaria, Inc. (the "Company") provides a fully programmatic software platform for premium publishers to manage and monetize their video advertising. The Company's platform is built specifically for digital video and to support the unique requirements of connected TV, mobile and over-the-top content. The Company provides publishers with real-time analytics and decisioning tools to optimize their video advertising business and offer a holistic video monetization solution that allows publishers to efficiently sell their inventory however they want to transact. On December 19, 2019, the Company announced a stock-for-stock ("Merger") with The Rubicon Project, ("Rubicon Project"), which will create a combined company, offering a single partner for transacting CTV, desktop, video, audio, and mobile inventory across all geographic and auction types. Upon completion of the Merger, which is expected to close in early April 2020, each share of Company common stock issued and outstanding as of the effective time of the Merger will be converted into the right to receive 1.082 shares of Rubicon Project common stock. Based on the number of shares of Company and Rubicon Project common stock outstanding and reserved for issuance as of February 11, 2020, the company estimates that former holders of Company common stock will own approximately 47.6% and pre-merger holders of Rubicon Project common stock will own approximately 52.4% of the common stock of the combined company on a fully diluted basis. On June 8, 2018, the Company acquired all of the outstanding shares of SlimCut Media SAS, a joint stock company incorporated under the laws of France (“SlimCut”). Refer to Note 7 for further discussion. On September 11, 2017, the Company filed an amendment to its Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to change its name from “Tremor Video, Inc.” to “Telaria, Inc.” In connection with the name change, the Company’s common stock began trading under a new NYSE ticker symbol, “TLRA,” and the corporate website address was changed to www.telaria.com. On August 7, 2017, the Company announced the sale of its buyer platform to an affiliate of Taptica International Ltd. (“Taptica”) for total consideration of $50,000, subject to adjustment for working capital. Refer to Note 3 for further discussion. The buyer platform enabled advertisers, agencies and other buyers of advertising to discover, buy, optimize and measure the effectiveness of their video ad campaigns across all digital screens. Following the strategic decision to sell the buyer platform, the Company is focused on providing a seller platform for premium publishers. On August 3, 2015 (the “TVN Acquisition Date”), the Company acquired all of the outstanding shares of The Video Network Pty Ltd., an Australian proprietary limited company (“TVN”). Refer to Note 7 for further discussion. The Company is headquartered in the State of New York.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Basis of Presentation The accompanying consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”). Principles of Consolidation The consolidated financial statements include the accounts of Telaria, Inc. and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in the accompanying consolidated financial statements. Reclassifications Certain prior period amounts have been reclassified to conform to the current period presentation with no impact on consolidated net income(loss) or cash flows. Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions. The Company’s management believes that the estimates, judgments and assumptions used are reasonable based upon information available at the time they are made. These estimates, judgments and assumptions can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company’s management evaluates estimates, including those related to fair values and useful lives of intangible assets, fair values of stock-based awards, income taxes, and contingent liabilities. Such estimates are based on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Concentrations of Credit Risk Financial instruments that subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. All of the Company’s cash and cash equivalents are held at financial institutions that management believes to be of high credit quality. The Company’s cash and cash equivalents may exceed federally insured limits at times. The Company has not experienced any losses on cash and cash equivalents to date. The Company determines collectability of its accounts receivable by performing ongoing credit evaluations and monitoring its customers’ accounts receivable balances. For new customer and their agents, which may be advertising agencies or other third-parties, the Company performs a credit check with an independent credit agency and may check credit references to determine creditworthiness. The Company only recognizes revenue when, among other factors, collection is reasonably assured. During the years ended December 31, 2019, and 2018 there were zero publishers that accounted for more than 10% of revenue. At December 31, 2019 there was one DSPs that accounted for 46.5% of accounts receivable. At December 31, 2018, there was one DSP that accounted for 32.0% of outstanding accounts receivables. Cash and Cash Equivalents The Company considers cash deposits and all highly liquid investments with an original maturity of three months or less to be cash equivalents. The fair value of the Company’s cash and cash equivalents approximates their cost plus accrued interest because of the short-term nature of the instruments. Fair Value of Financial Instruments The Company utilizes fair value measurements when required. The carrying amounts of cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable and approximate fair values as of December 31, 2019 and 2018 due to the short-term nature of those instruments. Accounts Receivable, Net The Company extends credit to customers and generally does not require any security or collateral. Accounts receivable are recorded at the invoiced amount. The Company carries its accounts receivable balances at net realizable value. Management evaluates the collectability of its accounts receivable balances on a periodic basis and determines whether to provide an allowance or if any accounts should be written down and charged to expense as bad debt. The evaluation is based on a past history of collections, current credit conditions, the length of time the account is past due and a past history of write-downs. An accounts receivable balance is considered past due if the Company has not received payments based on agreed-upon terms. The following table presents the changes in the allowance for doubtful accounts: Years Ended December 31, 2019 2018 2017 Allowance for doubtful accounts: Beginning balance $ 982 $ 359 $ — Add: Reserves 386 1,052 — Less: Write-offs and other adjustments (80) (429) 359 Ending balance $ 1,288 $ 982 $ 359 Property and Equipment, Net Property and equipment are stated at cost, less accumulated depreciation. Depreciation expense on property and equipment is calculated using the straight-line method over the following estimated useful lives: Computer hardware 3 years Furniture and fixtures 7 years Computer software 3 years Office equipment 3 years Leasehold improvements are amortized over the shorter of the remaining life of the lease or the life of the asset. The cost of additions and expenditures that extend the useful lives of existing assets, are capitalized, while repairs and maintenance costs are charged to operations as incurred. Impairment of Long-Lived Assets The Company periodically reviews long-lived assets, which consists of its property and equipment and intangible assets, for impairment in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 360, “Accounting for the Impairment or Disposal of Long-Lived Assets,” whenever events or changes in circumstances indicate that the carrying amount of an asset is impaired or the estimated useful lives are no longer appropriate. If indicators of impairment exist and the undiscounted projected cash flows associated with such assets are less than the carrying amount of the asset, an impairment loss is recorded to write the assets down to their estimated fair values. The Company did not identify any impairment losses in continuing operations related to the Company's long-lived assets during the years ended December 31, 2019, 2018 and 2017. Goodwill and Intangible Assets, Net Goodwill represents the excess of the aggregate purchase price paid over the fair value of the net tangible and intangible assets acquired. Intangible assets that are not considered to have an indefinite useful life are amortized over their useful lives. The Company evaluates the estimated remaining useful lives of purchased intangible assets and whether events or changes in circumstances warrant a revision to the remaining period of amortization. Goodwill is not amortized, but rather is subject to an impairment test. The Company operates as one operating and reporting segment and therefore, evaluates goodwill and other intangible assets with indefinite lives for impairment annually as one singular reporting unit, on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company’s policy is to first perform a qualitative assessment to determine if that it was more likely or not if the reporting unit's carrying value is less than the fair value, indicating the potential for goodwill impairment. If the reporting unit fails the qualitative test then the Company proceeds with the quantitative two step goodwill impairment calculation. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets, including identifiable intangible assets, as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The Company did not identify any impairment of its goodwill at December 31, 2019, 2018 and 2017 and therefore, for the years ended December 31, 2019, 2018 and 2017 no impairment losses related to goodwill were recorded. The Company also reviews certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of intangible assets are measured by a comparison of the carrying amount of the asset or asset group, using an income approach, to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are not recoverable, the impairment to be recognized, if any, is measured by the amount which the carrying amount of the assets exceeds the estimated fair value of the assets or asset group. As the Company operates as one business unit and our long-lived assets do not have identifiable cash flows that are independent of the other assets and liabilities of this business unit, the impairment testing on intangible assets is performed at the entity-level. Intangible assets that are not considered to have an indefinite useful life are amortized over their estimated useful lives on a straight-line method as follows: Technology 5 years Customer relationships 6 to 10 years Revenue Recognition On January 1, 2018, the Company adopted Accounting Standards Update 2014-09 - Revenue from Contracts with Customers (Topic 606) ("ASU" 2014-09") using a modified retrospective approach applied to all contracts that generate revenue in the preceding year. The adoption of this guidance did not have an impact on the amount or timing of revenue recognized by the Company. The Company primarily generates revenue on a transactional basis where it is paid by a publisher each time an advertising impression is monetized on its platform based on a simple and transparent fee structure that the Company establishes with its publisher partners. Generally, the Company keeps a percentage of the advertising spend that is transacted by buyers on our platform, and remits the remainder to the seller. The fee on each transaction is based on the pre-existing agreement between the Company and the seller and the clearing price of the winning bid. The Company recognizes revenue upon fulfillment of its performance obligation to a client, which occurs at the point in time an ad renders and is counted as a paid impression, subject to an underlying agreement existing with the client and a fixed or determinable transaction price. The determination of whether revenue should be reported on a gross or net basis is based on an assessment of whether the Company is acting as the principal or an agent in the transaction. In determining whether the Company is acting as the principal or an agent, the Company followed the accounting guidance for principal-agent considerations. The determination of whether the Company is acting as a principal or an agent in a transaction involves judgment and is based on an evaluation of the terms of each arrangement, none of which are considered presumptive or determinative. For substantially all publisher transactions on the Company's platform, including all transaction monetized through the Company’s programmatic supply-side platform (SSP), the Company reports revenue on a net basis as the Company determined that it acts as an agent for publishers and is not the primary obligor in such transactions, given that: (1) another party is primarily responsible for fulfilling the contract and the Company does not have discretion in establishing prices and (2) the Company does not generally take on inventory risk. However, for certain transactions related to the Company’s outstream business that it acquired in connection with the acquisition of SlimCut in June 2018, the Company reports revenue on a gross basis, based primarily on its determination that the Company acts as the primary obligor in the delivery of advertising campaigns for buyers with respect to such transactions. The following table presents the Company's disaggregated revenue, which reflects the Company's platform revenue, which is reported on a net basis, and certain revenue streams associated with our outstream business, which are reported on a gross basis: December 31, 2019 Net Basis $ 58,457 86 % Gross Basis $ 9,582 14 % Total $ 68,038 100 % Cost of Revenue The Company's cost of revenue primarily consists of third-party hosting fees, data costs, licensing fees and, for transactions related to the portion of our outstream business that is booked on a gross basis, cost of inventory . Technology and Development Expenses Technology and development costs primarily consist of salaries, incentive compensation, stock-based compensation and other personnel-related costs for development and engineering personnel. Additional expenses in this category include costs related to development, quality assurance and testing of new technology, maintenance and enhancement of the Company's existing technology and infrastructure as well as consulting, travel and other related overhead. Due to the rapid development and changes in the Company’s business and underlying technology to date, the Company has expensed development costs in the same period that those costs were incurred. Sales and Marketing Expenses Sales and marketing expenses primarily consist of salaries, incentive compensation, stock-based compensation and other personnel-related costs for our marketing and sales and sales support employees. Additional expenses in this category include marketing programs, travel and other related overhead. These costs are expensed when incurred and are included in sales and marketing expenses. Advertising costs, which are comprised of print and internet advertising, were $95, $75 and $183 for the years ended December 31, 2019, 2018 and 2017, respectively. Stock-Based Compensation Expenses The Company accounts for stock-based compensation expense under FASB ASC 718, “Compensation—Stock Compensation,” which requires the measurement and recognition of stock-based compensation expense based on estimated fair values, for all stock-based payment awards made to employees, and FASB ASC 505-50, “ Equity-Based Payments to Non-Employees ,” which requires the measurement and recognition of stock-based compensation expense based on the estimated fair value of services or goods being received, for all stock-based payment awards made to other service providers and non-employees. The Company measures its stock-based payment awards based on its estimate of the fair value of such award using an option-pricing model, for stock option awards, and the fair value of the Company’s common stock on the date of grant, for restricted stock unit awards. The value of the portion of the award that is ultimately expected to vest is recognized as an expense over the requisite service periods in the Company’s consolidated statements of operations. The Company recognizes compensation expenses for the value of its stock-based payment awards, which have graded vesting criteria based on service and market conditions, using the straight-line method, over the requisite service period of each of the awards, net of actual forfeitures. In the event of modification of the conditions on which stock-based payment awards were granted, an additional expense is recognized for any modification that increases the total fair value of the stock-based payment arrangement or is otherwise beneficial to the employee, other service provider or non-employee at the modification date. Income Taxes Income taxes represents amounts paid or payable (or received or receivable) for the current year and includes any changes in deferred taxes during the year. The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, as well as for operating loss and tax credit carry-forwards. The Company measures deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which the Company expects to recover or settle those temporary differences. The Company recognizes the effect of a change in tax rates on deferred tax assets and liabilities in the results of operations in the period that includes the enactment date. Deferred income tax expense represents the change during the period in deferred tax assets and deferred tax liabilities. The components of the deferred tax assets and liabilities are individually classified as non-current. The Company reduces the measurement of a deferred tax asset, if necessary, by a valuation allowance if it is more likely than not that the Company will not realize some or all of the deferred tax asset. As a result of the Company’s historical operating performance and the cumulative net losses incurred to date, the Company does not have sufficient objective evidence to support the recovery of the deferred tax assets. Accordingly, the Company has established a valuation allowance against substantially all of its deferred tax assets for financial reporting purposes because the Company believes it is more likely than not that these deferred tax assets will not be realized. The Company accounts for uncertain tax positions by recognizing the financial statement effects of a tax position only when, based upon technical merits, it is “more-likely-than-not” that the position will be sustained upon examination. Potential interest and penalties associated with unrecognized tax positions are recognized in its provision for income taxes in the consolidated statements of operations. On December 22, 2017, the U.S. President signed the Tax Cuts and Jobs Act (the “Act”) into law. Effective January 1, 2018, among other changes, the Act (1) reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, (2) changes the rules relating to net operating loss ("NOL") carryforwards and carrybacks, (3) eliminates the corporate alternative minimum tax ("AMT") and changes how existing AMT credits can be realized; and (4) requires companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries. For the year ended December 31, 2017, amounts recorded principally related to the reduction in the U.S. corporate income tax rate to 21%, which resulted in the Company reducing its net deferred tax asset and associated valuation allowance. At December 31, 2018, the Company completed its accounting of SAB 118 for all of the enactment-date income tax effects of the Act. The Company did not make any measurement-period adjustments and there were no additional material adjustments related to the Act. The Tax Act did not have a material impact on our financial statements since our deferred temporary differences in the United States are fully offset by a valuation allowance and we do not have any significant off shore earnings from which to record the mandatory transition tax. We did not record any provision for federal income taxes for the period ended December 31, 2019. Net Income (Loss) Per Share Attributable to Common Stockholders Basic net income (loss) per share attributable to common stockholders is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding for the period. Diluted net income (loss) per share attributable to common stockholders is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding for the period, adjusted to reflect potentially dilutive securities using the treasury stock method for the purchase of the Company's common stock, stock option awards and restricted stock unit awards. Due to the Company’s loss from continuing operations, net of income taxes: (i) stock option awards; and (ii) restricted stock unit awards were not included in the computation of diluted net loss per share attributable to common stockholders, as the effects would be anti-dilutive. Accordingly, basic and diluted net loss per share attributable to common stockholders is equal for the years presented. Comprehensive Income (Loss) Comprehensive income (loss) consists of foreign currency translation adjustments. Total comprehensive income (loss) and its component is presented in the accompanying consolidated statements of comprehensive income (loss). Foreign Currency Translation Adjustments The functional currency of the Company’s international subsidiaries is their local currency. The Company translates the financial statements of these subsidiaries to U.S. dollars using period-end exchange rates for assets and liabilities, and average exchange rates for revenue and expenses. Translation gains and losses are recorded in accumulated other comprehensive (loss) income as a component of stockholders’ equity. During the years ended December 31, 2019, 2018 and 2017, foreign currency translation adjustment gain and losses of $(238), $(717), and $99 respectively, were recorded as a component of comprehensive income (loss) in the consolidated financial statements. Net (losses) gain resulting from transactions denominated in foreign currencies were accounted for in the Company’s consolidated statements of operations and totaled $(50), $4, and $44 during the years ended December 31, 2019, 2018 and 2017, respectively. Recently Issued Accounting Pronouncements FASB Accounting Standards Update No. 2019-12 - Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes In December 2019, Financial Accounting Standards Board, ("FASB") issued an Accounting Standards Update, ("ASU") No. 2019-12 Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for income taxes by removing several exceptions including the exception to the incremental approach for intra-period tax allocation when there is a loss from continuing operations, an exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2020 with early adoption permitted, including interim periods. The Company is currently evaluating the impact the update will have on its consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-15 - Intangibles—Goodwill and Other— Internal-Use Software (Subtopic 350-40) In August 2018, Financial Accounting Standards Board, ("FASB") issued an Accounting Standards Update, ("ASU") No. 2018-15 Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2019 with early adoption permitted, including interim periods. The Company does not believe the adoption of this amendment will have a material impact prospectively to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-13 - Fair Value Measurement (Topic 820) In August 2018, FASB issued ASU No. 2018-13 Fair Value Measurements (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in the update modify the disclosure requirements on fair value measurements in Topic 820, including the removal, modification and additions of certain disclosure requirements for Level 3 fair value measurements and for transfers between Level 1 and Level 2 of the fair value hierarchy. The requirement is for all entities that are required to make disclosures about recurring or nonrecurring fair value measurements to apply the guidance to annual reporting periods beginning after December 15, 2019 with early adoption permitted for any modified or removed disclosures only. The Company does not believe adoption of this amendment will have a material impact prospectively to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-07 - Improvements to Nonemployee Share-Based Payment Accounting (Topic 718) In June 2018, FASB issued an ASU No. 2018-07 Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. The amendment simplifies the accounting for equity based payments to nonemployees by expanding the scope of Topic 718 to include nonemployees. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2018 with early adoption permitted, including interim periods. The Company has adopted this update with no material impact to the Company's condensed consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-02 - Income Statement - Reporting Comprehensive Income (Topic 220) In February 2018, FASB issued an ASU No. 2018-02 Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2018 with early adoption permitted, including the interim periods. The Company has adopted this update with no material impact to the Company's condensed consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2017-01 - Business Combinations (Topic 805) In January 2017, FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business”. The amendment was issued to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this ASU provide a screen to determine when a set (inputs and processes that produce an output) is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2017. The Company adopted this update on a prospective basis in the first quarter of 2018 with no material impact to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2016-02 — Leases (Topic 842) In February 2016, the FASB issued ASU No. 2016-02, Leases, which clarifies and improves existing authoritative guidance related to leasing transactions. This ASU will require the recognition of lease assets and liabilities for operating leases with terms of more than 12 months. The presentation of leases within the consolidated statement of operations and cash flows will be substantially consistent with current accounting guidance. This update is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. The Company implemented this guidance in the first quarter of 2019 using the modified retrospective transition method and will not restate comparative periods. Refer to note 12 - ASC 842 (Leases) for more information.

Disposition of Buyer Platform

Disposition of Buyer Platform	12 Months Ended
Disposition of Buyer Platform	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Disposition of Buyer Platform	Disposition of Buyer PlatformOn August 7, 2017, the Company announced the sale of its buyer platform to Taptica for total consideration of $50,000, subject to adjustment for working capital. The proceeds include $1,000 for the right to use the name, “Tremor Video, DSP,” for a period of 18 months following the closing. The Company recognized $1,000 in other income within the Consolidated Statements of Operations ratably over the 18-month period following the sale. The sale of the buyer platform represented a strategic change to shift the focus of the Company’s business exclusively on offering its sell-side video management platform. Accordingly, the results of the buyer platform have been classified as a discontinued operation in the consolidated financial statements for all periods presented. Following the disposition, the Company entered into an arms-length commercial agreement with Taptica pursuant to which they may purchase video inventory on the platform. In connection with the transaction, we entered into a transition services agreement, pursuant to which we provided certain services to Taptica through June 15, 2018. The Company transferred full title and interest in the name "Tremor Video" to Taptica during the second quarter of 2018, in consideration for Taptica reaching certain payment milestones under a commercial agreement between the parties. As a result of the title transfer, the remaining balance of $566 related to the transfer of the trademark was recorded in other income during the second quarter of 2018. In connection with the closing of the transaction, the Company recognized a gain on sale of discontinued operations, net of tax of $14,924 in the third quarter of 2017. Included in the measurement of the gain were estimates for the income taxes due on the gain and the additional cash consideration expected from the buyer related to a closing date net working capital sales price adjustment. The Company recognized losses on the sale of discontinued operations for the year-ended December 31, 2018 as a result of net working capital adjustments in the amount of $136. The following table presents the major financial lines constituting the results of operations for discontinued operations to the income (loss) from discontinued operations, net of income taxes, presented separately in the Consolidated Statements of Operations: Years Ended 2018 2017 Revenue $ — $ 88,255 Cost of revenue — 53,486 Gross profit — 34,769 Operating expenses: Technology and development — 7,594 Sales and marketing — 16,149 General administrative — 547 Depreciation and amortization — 3,174 Impairment charges — — Total operating expenses — 27,464 Income from discontinued operations — 7,305 Interest and other (expense), net — — Income from discontinued operations before income taxes — 7,305 Provision (benefit) for income taxes — 4 Income from discontinued operations, net of income taxes — 7,301 (Loss) gain on sale of discontinued operation before income taxes (136) 14,958 Provision for income taxes — 332 Gain on sale of discontinued operation, net of income taxes (136) 14,626 Income from discontinued operations, net of income taxes — 7,301 Income (loss) from discontinued operations, net of income taxes $ (136) $ 21,927 The following table presents supplemental cash flow information of the discontinued operations: Years Ended 2018 2017 Non-cash adjustments to net cash from operating activities: Depreciation and amortization $ — $ 3,174 Stock based compensation expense — 673 Cash used in investing activities: Capital expenditures $ — $ 475

Fair Value Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. If a financial instrument uses inputs that fall in different levels of the hierarchy, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation. The three-tiers are defined as follows: • Level 1 . Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities; • Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and • Level 3. Unobservable inputs for which there is little or no market data requiring the Company to develop its own assumptions. Assets and Liabilities Measured at Fair Value on a Recurring Basis December 31, 2019 December 31, 2018 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds (1) $ 27,235 — — $ 27,235 $ 28,671 $ — $ — $ 28,671 Total assets $ 27,235 — — $ 27,235 $ 28,671 $ — $ — $ 28,671 Liabilities: Contingent consideration on acquisition liability (2) $ — $ — $ — $ — $ — $ — $ 1,500 $ 1,500 Total liabilities $ — $ — $ — $ — $ — $ — $ 1,500 $ 1,500 (1) Money market funds are included within cash and cash equivalents in the Company’s consolidated balance sheets. As short-term, highly liquid investments readily convertible to known amounts of cash, the Company’s money market funds have carrying values that approximate their fair value. Amounts above do not include $26,929 and $18,988 of operating cash balances as of December 31, 2019 and 2018, respectively. (2) On June 8 2018, the Company acquired all of the outstanding shares of Slimcut. In connection with the acquisition, the former stockholders of SlimCut were eligible to receive future cash payments up to $1,500 contingent on the operating performance of SlimCut in reaching certain financial milestones for the year ended December 31, 2018. In estimating the fair value of the contingent consideration on the date of acquisition, the Company used a Monte-Carlo valuation model based on future expectations on reaching financial milestones, other management assumptions (including operating results, business plans, anticipated future cash flows, and marketplace data), and the weighted-probabilities of possible payments. These assumptions were based on significant inputs not observed in the market and, therefore, represent a Level 3 measurement. Based on the operating results as of December 31, 2018, contingent consideration of $1,500 was fully earned and paid out to former stockholders of SlimCut in 2019. Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) The following table represents the changes in the Company’s Level 3 instruments measured at fair value on a recurring basis for the years ended December 31, 2019 and December 31, 2018: 2019 2018 Beginning balance at January 1, $ 1,500 $ — Contingent consideration on acquisition (1) — 1,443 Contingent consideration paid, SlimCut acquisition (1,500) — Mark-to-market expense (2) — 57 Ending balance at December 31, $ — $ 1,500 (1) Represents contingent consideration attributable to the SlimCut acquisition (as defined below see Note 7) that has been recorded during the years ended 2019 and 2018, respectively. Refer to note 7 for further discussion of contingent consideration payments paid in connection with the Company’s acquisitions of SlimCut. (2) Reflects expense incurred based on the Company’s re-measurement at December 31, 2018, of the estimated fair value of the contingent consideration relating to the SlimCut acquisition (as defined below, see Note 7). Amounts recorded as mark-to-market expense relating to Level 3 instruments are recorded in operating expense. Refer to the table above regarding assumptions used for Level 3 instruments and Note 7 for further discussion of contingent consideration payments paid in connection with the Company’s acquisition of SlimCut.

Prepaid Expenses and Other Curr

Prepaid Expenses and Other Current Assets	12 Months Ended
Prepaid Expenses and Other Current Assets	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consisted of: December 31, 2019 2018 Prepaid expenses and other current assets $ 4,346 $ 3,105 Prepaid rent — 106 Deferred rental income 259 170 Total prepaid expenses and other current assets $ 4,605 $ 3,381

Property and Equipment, Net

Property and Equipment, Net	12 Months Ended
Property and Equipment, Net	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property and Equipment, Net	Property and equipment, net consisted of: December 31, 2019 2018 Leasehold improvements $ 3,047 $ 3,009 Computer hardware 1,120 1,045 Furniture and fixtures 452 539 Computer software 830 800 Office equipment 91 92 Total 5,540 5,485 Less: accumulated depreciation (3,550) (2,696) Total property and equipment, net $ 1,990 $ 2,789

Acquisition

Acquisition	12 Months Ended
Acquisition	Dec. 31, 2019
Business Combinations [Abstract]
Acquisition	Acquisition On December 19, 2019, the Company entered into an Agreement and Plan of Merger with Rubicon Project ("Rubicon"), pursuant to which, subject to the approval of the Company's stockholders and Rubicon Project stockholders, the Company and Rubicon Project will combine in an all-stock merger (the "Merger"). At the completion of the Merger, Telaria will become a wholly owned subsidiary of the Rubicon Project. The Merger will create a combined company offering a single platform for transacting CTV, desktop display, video, audio, and mobile inventory across all geographic and auction types. The Merger had not been completed as of December 31, 2019 and is expected to be completed in early April 2020. On June 8, 2018, the Company acquired all of the outstanding shares of SlimCut, a video technology solutions company, pursuant to a stock purchase agreement between the Company and the sellers identified therein. As consideration for the acquisition, the Company made an initial payment to the sellers of $5,458, subject to certain adjustments set forth in the purchase agreement. In addition, the sellers were eligible to receive future cash payments up to $1,500 based on achieving certain financial milestones. The fair value of the contingent consideration as of June 8, 2018 was $1,443 (see Note 4) and is included in the purchase price of SlimCut. The Company re-measured the estimated fair value of the contingent consideration as of June 30, 2018, September 30, 2018 and December 31, 2018, with no material change in fair value as of June 30 or September 30, 2018. As of December 31, 2018, the full contingent consideration of $1,500 was earned, which resulted in $57 in mark-to-market expense. The contingent consideration was paid in full in the first-quarter of 2019. The financial effects of this acquisition, individually and in the aggregate, were not material to the Company’s consolidated balance sheet and statement of operations as of December 31, 2018 and, therefore, proforma results are not presented. On August 3, 2015, the Company acquired all of the outstanding shares of TVN. As consideration for the acquisition, the Company made an initial payment to the former stockholders of TVN (“TVN Sellers”) of $3,040 Australian dollars ($2,217 U.S. dollars based on the currency exchange rate on the date of the acquisition). In addition, the TVN Sellers were eligible to receive cash payments over a term of two years contingent on the operating performance of TVN in reaching certain financial milestones in each of the periods from July, 1, 2015 to June 30, 2016 and the period from July 1, 2016 to June 30, 2017, a portion of which was also contingent on continued employment of certain TVN Sellers (the “TVN Employee Sellers”). Subsequent to the date of acquisition, the Company re-measured the estimated fair value of the contingent consideration at each reporting date with any changes in fair value recorded in the Company’s statements of operations. For the year ended December 31, 2017, the Company recorded $148, in mark-to market expense related to the change in contingent consideration for TVN Sellers that were not required to remain employed with the Company and $1,810, of compensation related expense in connection with contingent consideration payments that were contingent on continued employment of the TVN Employee Sellers. Compensation related expense in connection with the continued employment of the

Goodwill and Intangible Assets,

Goodwill and Intangible Assets, Net	12 Months Ended
Goodwill and Intangible Assets, Net	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets, Net	Goodwill includes the cost of the acquired business in excess of the fair value of the tangible net assets recorded in connection with the acquisitions of SlimCut and TVN (see Note 7 – Acquisitions). Accounting Standards Codification 350, “Intangibles – Goodwill and Other” (“ASC 350”), requires the Company to assess goodwill for impairment annually or more frequently if a triggering event occurs. The Company operates as one operating and reporting segment and, therefore, the Company assesses goodwill for impairment annually as one singular reporting unit. The Company’s policy is to first perform a qualitative assessment to determine if that it was more likely than not that the reporting unit's carrying value is less than the fair value, indicating the potential for goodwill impairment. If the reporting unit fails the qualitative test then the Company proceeds with the quantitative two-step goodwill impairment calculation. During 2019, the Company performed a qualitative assessment of the reporting unit's fair value which included assessing the impact of certain factors such as general economic conditions, limitations on accessing capital, changes in forecasted operating results, and fluctuations in foreign exchange rates. Based on our qualitative assessment, we concluded that it was more likely than not that an impairment of goodwill did not exist, and as a result, the Company did not perform the two-step process. The changes in the carrying amount of goodwill as of December 31, 2019 and 2018, were as follows: 2019 2018 Beginning balance as of January 1, $ 9,478 $ 6,320 Acquisition-related goodwill — 3,424 Foreign exchange impact (75) (266) Ending balance as of December 31, $ 9,403 $ 9,478 The Company also reviews certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of intangible assets are measured by a comparison of the carrying amount of the asset or asset group, using an income approach, to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are not recoverable, the impairment to be recognized, if any, is measured by the amount which the carrying amount of the assets exceeds the estimated fair value of the assets or asset group. As the Company operates as one business unit and the Company’s long-lived assets do not have identifiable cash flows that are independent of the other assets and liabilities of this business unit, the impairment testing on intangible assets is performed at the entity-level. The Company did not identify any impairment of intangible assets at December 31, 2019 and 2018 Information regarding the Company’s acquisition-related intangible assets, net is as follows: December 31, 2019 Gross Carrying Accumulated Net Carrying Customer relationships (1) $ 4,729 $ (1,877) $ 2,852 Patent Fixed Asset (3) 40 — 40 Technology (2) 954 (298) 656 $ 5,723 (2,175) 3,548 December 31, 2018 Gross Carrying Accumulated Net Carrying Customer relationships (1) $ 4,797 $ (1,283) $ 3,514 Technology (2) $ 973 $ (108) 865 $ 5,770 $ (1,391) $ 4,379 (1) The decrease for the year ended December 31, 2019 was due to accumulated amortization for the year. The increase in gross carrying amount for customer relationships in December 31, 2018, was due to an increase of $2,900 relating to the acquisition of SlimCut, which was partially offset by a decrease of $291 from the foreign exchange impact for the same period. From the same period accumulated amortization expense increased by $508, partially offset by foreign exchange impact over the same period of $106. (2) The decrease for the year ended December 31, 2019 was due to accumulated amortization for the year. For the year ended December 31, 2018, the gross carrying amount for technology includes an increase of $1,000 due to the acquisition of SlimCut which was partially offset by foreign exchange decrease of $27. Accumulated amortization increased by $109 over the same period due to the acquisition of SlimCut, partially offset by foreign exchange impact. (3) The Company's Patent Fixed Assets are not required to be amortized. Amortization expense amounted to $790, $619 and $358 for the years ended December 31, 2019, 2018, and 2017 respectively. The estimated future amortization expense of customer relationships for the next five years are as follows: 2020 $ 835 2021 658 2022 467 2023 360 2024 and thereafter 1,228 Total $ 3,548

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The components of the Company’s loss before income tax provision for the years ended December 31, 2019, 2018 and 2017 are as follows: Years Ended December 31, 2019 2018 2017 Loss from continuing operations before income taxes: Domestic $ (10,513) $ (9,034) $ (18,147) Foreign 1,982 (206) (1,900) Total loss from continuing operations before income taxes $ (8,531) $ (9,240) $ (20,047) The Company’s income tax provision, which is comprised of minimum U.S. federal, state and local taxes and taxes from foreign jurisdictions, consists of the following: Years Ended December 31, 2019 2018 2017 Provision for current income taxes: U.S. federal $ — $ 10 $ — U.S. state and local (26) 91 (2) Foreign 556 97 154 Total provision for current income taxes 530 198 152 Benefit for deferred income taxes: U.S. federal — (10) (332) U.S. state and local — — — Foreign (54) (198) (167) Total benefit for deferred income taxes (54) (208) (499) Total (benefit) provision for income taxes $ 476 $ (10) $ (347) A reconciliation between the U.S. federal statutory income tax rate to the effective tax rate, by applying such rates to loss before income tax provision, for the years ended December 31, 2019, 2018 and 2017 are as follows: Years Ended December 31, 2019 2018 2017 U.S. federal statutory income tax rate (21.00) % (21.00) % (34.00) % State income tax rate, net of U.S. federal tax benefit (0.25) 0.77 (0.01) Stock-based compensation expense (11.36) (6.45) — Acquisition related costs — — 3.11 Mark-to-market expense — — 0.25 Change in income tax rates 2.40 (6.33) (1.03) Change in deferred tax asset valuation 31.32 34.08 29.03 Trademark income — (1.54) — GILTI 3.55 % — — Goodwill impairment charge — — 1.46 AMT credit — — (1.65) Meals and Entertainment 0.89 0.55 1.10 Other 0.03 (0.20) 0.01 Effective tax rate 5.58 % (0.12) % (1.73) % Significant components of the Company’s deferred tax assets and liabilities reported on a net cross jurisdictional basis are summarized as follows: December 31, 2019 2018 Deferred tax assets: Net operating losses and tax credits $ 29,514 $ 29,322 Stock-based compensation expense 4,028 4,118 Deferred rent — 1,049 Depreciation and amortization expense 275 1,585 Accrued expenses 831 583 ROU liability 7,656 — Transaction costs 467 — Allowance for doubtful accounts 339 283 Unrealized gains and losses 165 51 Total deferred tax assets before valuation allowance 43,275 36,991 Less: valuation allowance (36,877) (36,692) Total deferred tax assets, net of valuation allowance 6,398 299 Deferred tax liabilities: Intangible assets (993) (1,243) Unrealized gains and losses (135) (16) Depreciation Expense (90) ROU asset (6,126) — Total deferred tax liabilities (7,344) (1,259) Total deferred tax liabilities, net $ (946) $ (960) For financial and tax reporting purposes, the Company incurred net operating losses in each period since its inception, except for 2017 and, therefore, a significant portion of the deferred tax assets recognized relate to such net operating losses. In determining whether the Company may realize the benefits from these deferred tax assets, the Company considers all available objective and subjective evidence, both positive and negative. Based on the available objective and subjective evidence, including the Company’s history of net operating losses, management believes it is more likely than not that the deferred tax assets will not be fully realizable at December 31, 2019 and 2018. Accordingly, the Company provided a valuation allowance on substantially all of its deferred tax asset balance to reflect the uncertainty regarding the realizability of these assets for the periods presented, with the exception of a deferred tax asset related to AMT tax credits. On December 22, 2017, the U.S. President signed the Tax Cuts and Jobs Act (the “Act”) into law. Effective January 1, 2018, among other changes, the Act (1) reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, (2) changes the rules relating to net operating loss ("NOL") carryforwards and carrybacks, (3) eliminates the corporate alternative minimum tax ("AMT") and changes how existing AMT credits can be realized; and (4) numerous modifications creating a territorial tax system and broadening the income tax base. The impact on the Company's financial statements for the period ended December 31, 2018 is immaterial, primarily because the Company has a valuation allowance on deferred tax assets in the U.S. In addition, the Act makes the AMT credit refundable in tax years beginning after 2017. As a result of this change, the Company does not have a valuation allowance on its AMT credit. The impact on the Company's financial statements for the period ended December 31, 2019 is immaterial, primarily because the Company has a valuation allowance on deferred tax assets in the U.S. In addition, the Act makes the AMT credit refundable in tax years beginning after 2017. As a result of this change, the Company does not have a valuation allowance on its AMT credit. As a result of U.S. tax reform legislation, distributions of profits from non-U.S. subsidiaries are not expected to cause a significant incremental U.S. tax impact in the future. However, distributions may be subject to non-U.S. withholding taxes if profits are distributed from certain jurisdictions. U.S. federal income taxes have not been provided on undistributed earnings of our international subsidiaries as it is our intention to reinvest any earnings into the respective subsidiaries. It is not practicable to estimate the amount of tax that might be payable if some or all of such earnings were to be repatriated due to the legal structure and complexity of U.S. and local tax laws. For the year ended December 31, 2019, the Company’s valuation allowance has increased to $36,877 compared to $36,692 as of December 31, 2018, largely due to the increase in deferred tax assets for net operating losses, ROU liability and transaction costs. These increases were partially offset by a reduction to net operating losses that are expected to expire unutilized. As of December 31, 2019, the Company has U.S. federal and state net operating loss carry-forwards of approximately $107,982 and $74,992, respectively, and foreign net operating loss carry-forwards of $6,787, $5,901, and $98 related to its international subsidiaries in the Germany, United Kingdom and Australia respectively, which are available to reduce future taxable income in those jurisdictions. The U.S. federal net operating losses will expire in various years beginning in 2027 through 2036. Post-Act federal net operating losses will not expire. The Company’s foreign net operating loss carry-forwards can be carried forward without limitation in each respective country. The U.S. federal net operating losses includes acquired tax loss carry-forwards of Transpera, Inc. (“Transpera”) and ScanScout, Inc. (“ScanScout”), and net operating losses from Telaria, Inc. ("Telaria") which experienced an ownership change in 2010 which are subject to limitation on future utilization under Section 382 of the Internal Revenue Code of 1986 (“Section 382”). Section 382 imposes limitations on the availability of a company’s net operating losses after a more than 50 percentage point ownership change occurs. It is estimated that the effect of Section 382 will generally limit the amount of the net operating loss carry-forwards of Transpera, that are available to offset future taxable income to approximately $161, annually. As a result of the adoption of ASU 2016-09, the Company no longer excludes tax benefits that arose directly from equity compensation in excess of compensation recognized for financial reporting in its U.S. federal and state net operating loss carryforwards. The Company did not record any amounts related to uncertain tax positions or tax contingencies at December 31, 2019 and 2018. As of December 31, 2019 and 2018, the primary tax jurisdictions in which the Company is subject to tax were the U.S. federal and state jurisdictions, Australia, Canada, France, Singapore, Malaysia, New Zealand, Brazil and United Kingdom. Since the Company is in an overall net operating loss position, the Company is generally subject to U.S. federal and state income tax examinations by tax authorities for all years for which a net operating loss carry-forward is available. The

Accounts Payable and Accrued Ex

Accounts Payable and Accrued Expenses	12 Months Ended
Accounts Payable and Accrued Expenses	Dec. 31, 2019
Payables and Accruals [Abstract]
Accounts Payable and Accrued Expenses	Accounts Payable and Accrued Expenses Accounts payable and accrued expenses consisted of: December 31, 2019 2018 Trade accounts payable $ 152,274 $ 95,028 Accrued compensation, benefits and payroll taxes 5,436 5,468 Accrued cost of revenue 7,152 7,127 Other payables and accrued expenses 3,956 2,368 Total accounts payable and accrued expenses $ 168,818 $ 109,991

Credit Facility

Credit Facility	12 Months Ended
Credit Facility	Dec. 31, 2019
Debt Disclosure [Abstract]
Credit Facility	Credit Facility The Company is party to a loan and security agreement, ("Credit Facility"), with Silicon Valley Bank, ("Lender"). Pursuant to the credit facility, the Company can incur revolver borrowings up to the lesser of $25.0 million and a borrowing base equal to 80.0% of eligible accounts receivable. Any outstanding principal amounts borrowed under the credit facility must be paid at maturity. Interest accrues at a floating rate equal to the lender’s prime rate and is payable monthly. The Company is charged a fee of 0.35% of any unused borrowing capacity, which is payable quarterly. The credit facility also includes a letter of credit, foreign exchange and cash management facility up to the full amount of available credit. The credit facility matures on March 26, 2020. In light of the pending merger with Rubicon Project which is expected to be closed in early April 2020, the Company does not intend to renew the credit facility. While the Company had no outstanding borrowings under the credit facility as of December 31, 2019 and December 31, 2018, the lender has issued standby letters of credit in favor of the landlords of our current and former headquarters and other office space totaling $3.1 million, which can be drawn down from amounts available under the credit facility. Upon expiration of the facility the Company intends to collateralize its letters of credit with cash in an equal amount. The credit facility contains customary conditions to borrowings, events of default and negative covenants, including covenants that restrict the Company's ability to dispose of assets, merge with or acquire other entities, incur indebtedness, incur encumbrances, make distributions to holders of its capital stock, make investments or engage in transactions with our affiliates. The credit facility also includes a financial covenant with respect to a minimum cash balance, a minimum quick ratio, tested monthly, and Adjusted EBITDA for trailing periods which vary from three

Leases, Codification Topic 842

Leases, Codification Topic 842	12 Months Ended
Leases, Codification Topic 842	Dec. 31, 2019
Leases [Abstract]
Adoption of ASC Topic 842, Leases	Adoption of ASC Topic 842, Leases On January 1, 2019, the Company adopted ASC Topic 842, Leases ("Topic 842") using the modified retrospective transition method. Topic 842 requires the recognition of lease assets and liabilities for operating leases. Beginning on January 1, 2019, the Company's consolidated financial statements are presented in accordance with the revised policies, while prior period amounts are not adjusted and continue to be reported in accordance with the Company's historical policies. The modified retrospective transition method required the cumulative effect, if any, of initially applying the guidance to be recognized as an adjustment to the Company's accumulated deficit as of our adoption date. There was no cumulative effect adjustment to the Company's accumulated deficit as a result of initially applying the guidance. As a result of adopting Topic 842, the Company recognized additional operating lease assets of $26,449 and operating lease liabilities of $32,932 as of January 1, 2019. The discount rate used to calculate that adjustment was the Company's incremental borrowing rate as of the adoption date, January 1, 2019. Management elected to utilize the practical expedients permitted under the transition guidance within Topic 842, which allowed the Company to carry forward prior conclusions about lease identification, classification and initial direct costs for leases entered into prior to adoption of Topic 842. Additionally, management elected not to separate lease and non-lease components for all of the Company's leases. For leases with a term of 12 months or less, management elected the short-term lease exemption, which allowed the Company to not recognize right-of-use assets or lease liabilities for qualifying leases existing at transition and new leases the Company may enter into in the future. General Description of Leases The Company has entered into various non-cancelable operating lease agreements for its facilities. The Company classifies leases at their commencement as either operating or finance leases and may receive renewal or expansion options, rent holidays and leasehold improvement or other incentives on certain lease agreements. The Company’s operating leases primarily consist of leases for real estate throughout the world with lease expirations between 2019 and 2029. These arrangements typically do not transfer ownership of the underlying asset as the Company does not assume, nor does it intend to assume, the risks and rewards of ownership. The Company recognizes a right-of-use asset and lease liability for all of its leases at the commencement of the lease. Lease liabilities are measured based on the present value of the minimum lease payments discounted by a rate determined as of the date of commencement. Right-of-use assets are measured based on the lease liability adjusted for any initial direct costs, prepaid rent, lease incentives and restructuring. The following summarizes right-of-use assets as of December 31, 2019 (in thousands): 2019 Beginning balance at January 1, operating lease right-of-use, asset gross $ 26,449 Additional Leases in 2019 1,385 Total operating lease right-of-use asset, gross 27,834 Less: accumulated amortization (4,041) Operating lease right-of-use asset, net $ 23,793 Significant Assumptions and Judgments Significant judgment is required when determining whether a contract is or contains a lease. The Company reviews contracts to determine whether the language conveys the right to control the use of an identified asset for a period of time in exchange for consideration. As discussed above, the present value of minimum lease payments is used in determining the value of the Company's operating and finance leases. The discount rate used to calculate the present value for lease payments is the Company's incremental borrowing rate, which is determined based on information available at lease commencement and is equal to the rate of interest that the Company would have to pay to borrow on a collateralized basis over a similar term in an amount equal to the lease payments in a similar economic environment. The incremental borrowing rate used for our lease obligations as of December 31, 2019 and January 1, 2019 ranged from 4.08% to 7.36%. As of December 31, 2019, the weighted-average remaining lease term for our operating leases was 6.34 years. As of December 31, 2019, the weighted-average discount rate for our operating leases was 6.82%. The following table summarizes the Company's lease cost and sublease income for the year ended December 31, 2019: December 31, 2019 Operating lease cost $ 6,116 Variable lease cost 762 Short-term lease cost 345 Sublease income, gross (4,330) Total lease cost $ 2,893 As of December 31, 2019, the future payments under the Company's operating leases for each of the next five years and thereafter are as follows: 2020 $ 7,293 2021 6,084 2022 5,119 2023 5,092 2024 5,124 Thereafter 8,073 Subtotal 36,785 Less: imputed interest (7,252) Present value of minimum lease payments 29,533 Less: current portion of operating lease obligations (5,487) Total long-term lease obligations $ 24,046

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Letters of Credit At December 31, 2019 and 2018, the Company had the following outstanding letters of credit: • $300 as of December 31, 2019 and 2018, respectively, related to its former headquarters at 52 W 23rd St, New York, New York • $320 as of December 31, 2019 and 2018 related to new office space in Mountain View, California • $1,814 and $2,332 as of December 31, 2019 and 2018 related to its former headquarters at 1501 Broadway, New York, New York • $633 as of December 31, 2019 and 2018 related to its current headquarters at 222 Broadway, New York, New York Legal Contingencies Between February 5 and February 28, 2020, seven lawsuits were filed by purported stockholders in connection with the proposed Merger with Rubicon Project. Two lawsuits were brought as putative class actions and are captioned Sabatini v. Telaria, Inc., et al., No. 1:20-cv-00219 (D. Del. filed Feb. 13, 2020) and Carter v. Telaria, Inc., et al., No. 1:20-cv-01576 (S.D.N.Y. filed Feb. 21, 2020). Five lawsuits were brought by the plaintiffs individually and are captioned Stein v. Telaria, Inc., et al., No. 1:20-cv-01010 (S.D.N.Y. filed Feb. 5, 2020); Lin v. Telaria, Inc. et al., No. 1:20-cv-01277 (S.D.N.Y. filed Feb. 13, 2020); Melool v. Telaria, Inc., et al., No. 1:20-cv-00836 (E.D.N.Y. filed Feb. 15, 2020); Robinson v. Telaria, Inc., et al., No. 1:20-cv-01380 (S.D.N.Y. filed Feb. 18, 2020); and Wu v. Telaria, Inc., No. 1:20-cv-01790 (S.D.N.Y. filed Feb. 28, 2020) (collectively, the “Complaints”). The Complaints name the Company and each member of its board of directors as defendants. The Sabatini complaint additionally names Rubicon Project and Madison Merger Corp. as defendants. The Complaints allege violations of Section 14(a) of the Securities and Exchange Act of 1934 (the “Exchange Act”) and Rule 14a-9 promulgated thereunder against all defendants, and assert violations of Section 20(a) of the Exchange Act against the individual defendants. The Sabatini complaint additionally alleges a claim under Section 20(a) of the Exchange against the Rubicon Project and Merger Sub. The Stein and Carter complaints additionally allege a violation of 17 C.F.R. § 244.100 against all defendants. The plaintiffs contend that the Telaria Definitive Proxy Statement filed as part of the Rubicon Project’s registration statement on Form S-4 on January 30, 2020 and amended on February 7, 2020, omitted or misrepresented material information regarding the Merger. The Complaints seek injunctive relief, rescission or rescissory damages, and an award of plaintiffs’ costs, including attorneys’ fees and expenses. The Lin and Sabatini complaints also seek dissemination of a proxy statement that discloses certain information requested by those plaintiffs. The defendants believe the claims asserted in the Complaints are without merit. In addition, the Company is occasionally involved with various claims and litigation during the normal course of business. Reserves are established in connection with such matters when a loss is probable and the amount of such loss can be reasonably estimated. As of December 31, 2019 and 2018, no reserves were recorded. The determination of probability and the estimation of the actual amount of any such loss are inherently unpredictable, and it is therefore possible that the eventual outcome of such claims and litigation could exceed the estimated reserves, if any. Based upon the Company’s experience, current information and applicable law, it generally does not believe it is reasonably probable that any proceedings or possible related claims will have a material effect on its financial statements. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources and other factors.

Stockholders' Equity

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Stock Repurchases On October 2, 2018, the Company's board of directors approved a share repurchase program under which the Company was authorized to purchase up to $20,000 of common stock over the 18-month period commencing on the date of approval. For the three months ended December 31, 2018, the Company purchased 7,318,172 shares for the maximum amount originally approved under the share repurchase program of $20,000. The Company's board of directors subsequently approved additional purchases of 1,400,572 shares for an additional $3,536. For accounting purposes, common stock repurchased is recorded based upon the purchase date of the applicable trade. Such repurchased shares are held in treasury and are presented using the cost method.

Changes in Accumulated Other Co

Changes in Accumulated Other Comprehensive Income (Loss)	12 Months Ended
Changes in Accumulated Other Comprehensive Income (Loss)	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Changes in Accumulated Other Comprehensive Income (Loss)	Changes in Accumulated Other Comprehensive Income (Loss) The following table provides the components of accumulated other comprehensive (loss) income from continuing operations: Foreign Beginning balance at January 1, 2019 $ (949) Other comprehensive loss (1) (238) Ending balance at December 31, 2019 $ (1,187) Foreign Beginning balance at January 1, 2018 $ (232) Other comprehensive income (1) (717) Ending balance at December 31, 2018 $ (949)

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation The Company included stock-based compensation expense related to all of the Company’s stock-based payments awards in various operating expense categories for the years ended December 31, 2019, 2018 and 2017 as follows: Years Ended 2019 2018 2017 Stock-based compensation expense: Technology and development $ 818 $ 492 $ 615 Sales and marketing 2,196 1,470 2,062 General and administrative 2,745 1,858 2,044 Total in continuing operations $ 5,759 $ 3,820 $ 4,721 Discontinued operations — — 673 Total stock-based compensation expense $ 5,759 $ 3,820 $ 5,394 The Company recognizes compensation expenses for the value of its stock-based payment awards, using the straight-line method, over the requisite service period of each of the awards, net of actual forfeitures. In the event of modification of the conditions on which stock-based payment awards were granted, an additional expense is recognized for any modification that increases the total fair value of the stock-based payment arrangement or is otherwise beneficial to the employee, other service provider or non-employee at the modification date. During 2019 the Company modified certain stock awards, resulting in the recognition of stock-based compensation of $383 during the period. In August 2017, in connection with the consummation of the sale of the Company’s buyer platform, the Company modified certain restricted stock unit awards held by employees of the buyer platform to provide for pro-rated vesting of such awards for the current year vesting cycle, based on the number of days elapsed from the last vesting date through the date of the transaction. The incremental expense arising from this modification was $45. Additionally, as a result of the sale of the buyer platform, the Company reclassified stock-based compensation expense relating to the employees of the buyer platform of $673 for the year-ended December 31, 2017, which was recorded in Net Income from discontinued operations in the consolidated statement of operations. On September 20, 2017, the Company entered into an agreement with the Company’s President of Publisher Platforms that resulted in a separation date of October 6, 2017. The agreement provided acceleration of 100% of the unvested shares subject to any stock option or restricted stock unit award issued to him by the Company. The expense arising from this modification was $729. Stock-Based Incentive Plans On June 26, 2013, the Company adopted the 2013 Equity Incentive Plan (the “2013 Plan”). The Company has stock option awards outstanding under five stock-based incentive plans as of December 31, 2019, including two plans that were assumed as part of the acquisition of ScanScout. The Company has restricted stock unit awards outstanding, under its 2013 Plan, as of December 31, 2019. The Company’s initial share reserve under the 2013 Plan upon adoption was 1,333,333 shares of common stock. The number of shares reserved for issuance under the 2013 Plan increases automatically on the first day of January of each year, for a period of ten years, continuing through and including January 1, 2023, by the lesser of 4% of the total number of shares of common stock on the immediately preceding December 31 st , or a lesser number of shares determined by the Company’s board of directors. The maximum term for stock option awards granted under the 2013 Plan may not exceed ten years from the date of grant. The 2013 Plan will terminate ten years from the date of approval unless it is terminated earlier by the compensation committee of the board of directors. Stock Option Awards Outstanding The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019: Options Outstanding Options Exercisable Options Weighted Weighted Options Weighted Weighted Range of Exercise Prices Outstanding (Years) Per Share Exercisable (Years) Per Share $1.11 - $1.94 658,915 2.25 $ 1.86 635,477 2.55 $ 1.85 $2.00 – $2.88 1,305,000 5.92 2.40 894,269 4.79 2.45 $3.60 – $4.83 1,921,869 4.03 4.22 1,463,677 2.61 4.18 $5.01 – $5.90 1,019,324 2.75 5.56 437,037 0.71 5.57 $6.75 – $8.37 422,648 4.83 8.17 163,164 3.03 7.59 5,327,756 3.96 $ 3.70 3,593,624 2.74 $ 4.00 The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019: Number of Weighted December 31, 2018 (1) 6,348,251 $ 3.73 Stock option awards granted 884,479 6.06 Stock option awards forfeited (215,813) 4.33 Stock option awards exercised (1,689,161) 4.05 Stock option awards outstanding as of December 31, 2019 5,327,756 $ 4.00 Stock option awards vested and exercisable as of December 31, 2019 3,593,624 $ 4.00 (1) Includes certain employment inducement stock option awards granted outside of the Company’s stockholder approved equity compensation plans. These grants are generally subject to the same terms and conditions as applied to awards granted under the Company’s 2013 Plan. Stock option awards are generally granted at the fair market value of the Company’s common stock on the date of grant, generally vest over periods up to four years, have a one year cliff with monthly vesting thereafter, and have terms not to exceed 10 years. (2) Includes the vested portion of each employment inducement stock option award. Other selected information is as follows: Years Ended 2019 2018 2017 Aggregate fair value of stock option awards vested $ 1,183 $ 374 $ 644 Aggregate intrinsic value of outstanding stock option awards 954 1,270 5,503 Aggregate intrinsic value of stock option awards exercised 5,533 1,713 748 Weighted-average grant-date fair value per share of stock option awards granted 3.21 1.91 1.13 Cash proceeds received from stock option awards exercised $ 6,749 $ 1,845 $ 699 The fair value for stock option awards was estimated at the date of grant using a Black-Scholes option pricing model (other than with respect to the Performance Option (as defined below)). Calculating the fair value of the stock option awards requires subjective assumptions, including, but not limited to, the expected term of the stock option awards and stock price volatility. The Company estimates the expected life of stock option awards granted based on the simplified method, which the Company believes, is representative of the actual characteristics of the awards. The Company estimates the volatility of its common stock on the date of grant based on the historic volatility of the Company. Risk-free interest rates are based on yields from United States Treasury zero-coupon issues with a term consistent with the expected term of the awards in effect at the time of grant. Forfeitures are based on actual forfeitures in the given period. The Company has never declared or paid any cash dividends and has no current plan to do so. Consequently, it used an expected dividend yield of zero. The following table presents the assumptions for stock option awards granted during the years ended December 31, 2019, 2018 and 2017: 2019 2018 2017 Volatility 57% - 57% 49% - 55% 49% - 50% Risk-free interest rate 1.68% - 2.55% 2.37% - 3.01% 1.85% to 2.02% Expected life (in years) 5.45 - 5.54 5.32 - 5.58 5.65 - 5.67 Dividend yield 0.00 % 0.00 % 0.00 % There was $3,390 of total unrecognized compensation cost related to non-vested stock option awards granted under the Company’s equity incentive plans as of December 31, 2019. This cost is expected to be recognized over a weighted-average period of 2.63 years. Non-vested Restricted Stock Unit (RSU) Awards Outstanding The following table presents a summary of the Company’s non-vested restricted stock unit award activity under all plans and related information for the year ended December 31, 2019: Number of Weighted Non-vested restricted stock unit awards outstanding as of December 31, 2018 2,350,054 $ 3.00 Restricted stock unit awards granted 1,364,236 6.10 Restricted stock unit awards forfeited (265,681) 4.32 Restricted stock unit awards vested (973,568) 2.91 Non-vested restricted stock unit awards outstanding as of December 31, 2019 2,475,041 4.61 Years Ended 2019 2018 2017 Aggregate grant date fair value of restricted stock unit awards outstanding $ 11,398 $ 7,050 $ 5,515 Restricted stock unit awards are generally granted at the fair market value of the Company’s common stock on the date of grant and vest on an annual basis over periods up to four years. Forfeitures are based on actual forfeitures in the given period. As restricted stock unit awards vest, they are settled on a net-share basis. Upon settlement, certain shares underlying each restricted stock unit award are withheld to satisfy income tax withholding obligations, which is based on the value of the restricted stock unit award on the settlement date as determined by the closing fair market value of the Company’s common stock, relating to the employees’ minimum statutory obligation. There were $5,891 of total unrecognized compensation cost related to non-vested restricted stock unit awards granted under the Company’s equity incentive plans as of December 31, 2019. This cost is expected to be recognized over a weighted-average period of 2.49 years. Employee Stock Purchase Plan On April 22, 2014, the Company’s board of directors adopted the 2014 Employee Stock Purchase Plan (“2014 ESPP”), which was approved by the Company’s stockholders at the 2014 annual meeting of stockholders on June 16, 2014. The 2014 ESPP allows eligible participants to purchase shares of the Company’s common stock generally at six Employees purchase shares of common stock through payroll deductions, which may not exceed 15% of their total base salary. The 2014 ESPP imposes certain limitations upon an employee’s right to purchase shares, including the following: (1) no employee may purchase more than 5,000 shares on any one purchase date and (2) no employee may purchase shares with a fair market value in excess of $25 in any calendar year. No more than 2,000,000 shares of common stock are reserved for future issuance under the 2014 ESPP. As of December 31, 2019, the Company had 685,720 shares of common stock reserved for future issuance under the 2014 ESPP. The fair value for each award under the 2014 ESPP was estimated at the date of grant, at the beginning of the offering period, using a Black-Scholes option pricing model. Calculating the fair value of the ESPP awards requires subjective assumptions, including, but not limited to, the expected term of the ESPP award and stock price volatility. The Company estimates the expected life of the awards granted under the 2014 ESPP based on the duration of the offering periods, which is six months. The Company estimates the volatility of its common stock on the date of grant based on the Company's historic volatility. Risk-free interest rates are based on yields from United States Treasury zero-coupon issues with a term consistent with the expected term of the awards in effect at the time of grant. Forfeitures are recognized as they occur. The Company has never declared or paid any cash dividends and has no current plan to do so. Consequently, it used an expected dividend yield of zero. For the years ended December 31, 2019, 2018, and 2017 the following assumptions were used for awards issued under the 2014 ESPP: 2019 2018 2017 Volatility 60% - 93% 36% - 42% 42% - 52% Risk-free interest rate 1.37% - 2.86% 1.13% - 2.28% 0.70% - 1.1% Expected life (in years) 0.50 0.50 0.50 Dividend yield 0.00 % 0.00 % 0.00 % Stock-Option Compensation Award with Market Conditions: On July 10, 2017, the Company granted certain employment inducement awards to its newly appointed CEO. This grant included a performance option award for 450,000 shares of the Company’s common stock, which provides that 50% of the shares subject to the option will vest as of the date on which the 30-day moving average of the Company’s common stock exceeds $4.00 per share (as adjusted to account for any stock splits or other adjustments), and 50% of the shares subject to the option will vest as of the date on which the 30-day moving average of the Company’s common stock exceeds $5.00 per share (as adjusted to account for any stock splits or other adjustments), provided, in each case that he continues to provide services to the Company on each such vesting date. With respect to this performance option award, stock-option expense will be recorded over the vesting period for each tranche’s vesting period based on the expected achievement of the vesting condition. For these purposes, the vesting period for the $4.00 stock-option market condition is 1.27 years and the vesting period for the $5.00 market condition is 1.75 years. Fair value of the stock option award was calculated using the Monte-Carlo Simulation with the following assumptions: 2018 Exercise price $ 2.36 Volatility 50 % Risk-free interest rate 2.38 % Maturity 10.00 Milestone 1 $ 4.00 Milestone 2 $ 5.00 Cost of equity 17 % Dividend yield — %

Restructuring Costs

Restructuring Costs	12 Months Ended
Restructuring Costs	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring Costs	The Company divested its buyer platform on August 7, 2017. See Note 3, Disposition of Buyer Platform for more information regarding the sale of the buyer platform. As a result of the divestiture and corresponding reduction in number of employees, the Company relocated its corporate headquarters in New York as well as its office in Santa Monica, California. The Company ceased using its former corporate headquarters and Santa Monica location as of May 31, 2018. The leases associated with these offices will expire on January 31, 2025 and June 30, 2020, respectively.As a result of the Company's Santa Monica relocation, the Company incurred one-time costs of $117 during June of 2018. As a result of a change in term used in calculating the one-time costs, an additional $32 was recorded July of 2018. The company recorded the costs of $149 as restructuring costs in the Company's consolidated statements of operations for the year ended December 31, 2018. The Company had no restructuring costs for the year ended December 31, 2019.

Net Income (Loss) Per Share Att

Net Income (Loss) Per Share Attributable to Common Stockholders	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income (Loss) Per Share Attributable to Common Stockholders	Net Income (Loss) Per Share Attributable to Common Stockholders The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders: Years Ended 2019 2018 2017 Numerator: Loss from continuing operations, net of income taxes $ (9,007) $ (9,230) $ (19,700) Total income (loss) from discontinued operations, net of income taxes — (136) 21,927 Net income (loss) $ (9,007) (9,366) 2,227 Denominator: Weighted-average number of shares of common stock outstanding for basic and diluted net loss per share attributable to common stockholders 45,864,500 51,764,506 50,511,366 Basic and diluted net income (loss) per share: Loss from continuing operations $ (0.20) $ (0.18) $ (0.39) Income from discontinued operations — — 0.43 Net income (loss) $ (0.20) $ (0.18) $ 0.04 The following securities were outstanding during the years presented below and have been excluded from the calculation of diluted net loss per share attributable to common stockholders per share because the effect is anti-dilutive: Years Ended 2019 2018 2017 Stock option awards 5,327,756 6,348,251 6,311,059 Restricted stock unit awards 2,474,416 2,349,429 2,518,375 Total anti-dilutive securities outstanding 7,802,172 8,697,680 8,829,434

Employee Benefit Plan

Employee Benefit Plan	12 Months Ended
Employee Benefit Plan	Dec. 31, 2019
Retirement Benefits [Abstract]
Employee Benefit Plan	The Company maintains a defined contribution retirement plan available to all eligible U.S. employees pursuant to Section 401(k) of the U.S. Internal Revenue Code (the “401(k) Plan”). Pursuant to the Company’s 401(k) Plan, participating U.S. employees may defer a portion of their pre-tax earnings, subject to annual IRS contribution limits. The Company began a discretionary contribution matching of employee’s contributions in February 2014. The Company matched 50% of each participant’s eligible contributions, up to a maximum employer matching contribution of 3% of each participant’s eligible base salary. Participants will vest in such discretionary employer matching contributions over a 3-year graded vesting period. Total employer matching contributions to the Company’s 401(k) Plan for the year ended December 31, 2019, 2018 and 2017 were $417, $333, and $250, respectively.

Supplemental Disclosure of Cash

Supplemental Disclosure of Cash Flow Information	12 Months Ended
Supplemental Disclosure of Cash Flow Information	Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Supplemental Disclosure of Cash Flow Information	Supplemental Disclosure of Cash Flow Information Years Ended 2019 2018 2017 Supplemental disclosure of cash flow activities: Cash paid for income taxes $ 55 $ 93 $ 416 Cash paid for operating leases subject to ASU 842 $ 6,866 $ — $ — Cash paid for interest expense $ — $ — $ 101 Supplemental disclosure of non-cash investing and financing activities: Common stock issued for settlement of restricted stock unit awards $ 1,391 $ 1,312 $ 3,206 Purchase of property and equipment in accounts payable and accrued expenses $ 116 $ 6 $ 13 Cash holdback related to acquisition $ — $ 472 $ — Deferred tax liability related to acquisition $ — $ 1,015 $ — Contingent consideration on acquisition $ — $ 1,500 $ —

Segment and Geographic Informat

Segment and Geographic Information	12 Months Ended
Segment and Geographic Information	Dec. 31, 2019
Segment Reporting [Abstract]
Segment and Geographic Information	Segment and Geographic Information Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker, in deciding how to allocate resources and assess performance. The Company’s chief operating decision maker is its Chief Executive Officer (“CEO”). The Chief Executive Officer reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. As such, the Company has concluded that its operations constitute one operating and reportable segment. Substantially all assets were held in the United States as of each December 31, 2019 and 2018, and substantially all revenue was generated through sales personnel in the United States for the years ended December 31, 2019, 2018 and 2017.

Quarterly Results of Operations

Quarterly Results of Operations	12 Months Ended
Quarterly Results of Operations	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly Results of Operations	Unaudited Three Months Ended 2019 March 31, June 30, September 30, December 31, Revenue $ 13,622 $ 18,216 $ 16,564 $ 19,636 Gross profit 11,171 14,748 13,145 15,349 Income (loss) from continuing operations, net of income taxes (4,333) (1,484) (2,801) (389) Net loss $ (4,333) $ (1,484) $ (2,801) $ (389) Net earnings (loss) per share - basic and diluted: Loss from continuing operations, net of income taxes (1) $ (0.10) $ (0.03) $ (0.06) $ (0.01) Net loss (1) $ (0.10) $ (0.03) $ (0.06) $ (0.01) Basic and diluted weighted-average number of shares outstanding (2) 44,831,453 45,702,810 46,158,465 46,710,402 Unaudited Three Months Ended 2018 March 31, June 30, September 30, December 31, Revenue $ 9,601 $ 12,430 $ 13,478 $ 19,656 Gross profit 8,573 11,294 11,610 16,844 Income (loss) from continuing operations, net of income taxes (6,127) (2,960) (1,581) 1,438 Total income (loss) from discontinued operations, net of income taxes 26 (161) — (1) Net income (loss) (6,101) (3,121) (1,581) 1,437 Net earnings (loss) per share - basic Loss from continuing operations, net of income taxes (1) (0.12) (0.06) (0.03) 0.03 Income (loss) from discontinued operations, net of income taxes (1) — — — — Net income (loss) (1) $ (0.12) $ (0.06) $ (0.03) $ 0.03 Net earnings (loss) per share - diluted: Income (loss) from continuing operations, net of income taxes( 1) (0.12) (0.06) (0.03) 0.03 Income from discontinued operations, net of income taxes (1) — — — — Net income (loss) (1) $ (0.12) $ (0.06) $ (0.03) $ 0.03 Weighted-average number of shares of common stock outstanding: Basic 51,827,685 52,241,605 52,716,626 50,278,668 Diluted 51,827,685 52,241,605 52,716,626 51,266,321 (1) Basic and diluted loss from continuing operations, net of income taxes; income (loss) from discontinued operations, net of income taxes and net income (loss) is computed independently for each of the quarters presented. Therefore, the sum of all quarterly basic and diluted loss from continuing operations, net of income taxes; income (loss) discontinued operations, net of income taxes and net income (loss) per share may not equal the annual basic and diluted earnings (loss) per share calculations. (2) Due to the Company’s loss from continuing operations, net of income taxes, all potentially dilutive securities are anti-dilutive and, therefore, basic and diluted weighted average common shares outstanding are equal for all periods presented.

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	In December 19, 2019, the Company announced a stock-for-stock merger with The Rubicon Project, which will create a combined company offering a single partner for transacting CTV, desktop display, video, audio, and mobile inventory across all geographies and auction types. A definitive proxy statement was issued on February 13, 2020 and sent to both companies shareholders for a vote. Based on the number of shares of the Company's common stock outstanding and reserved for issuance as of February 11, 2020 and the number of shares of Rubicon Project common stock outstanding and reserved for issuance as of February 11, 2020, it is estimated that, immediately following completion of the merger, former holders of Telaria common stock will own approximately 47.6% and pre-merger holders of Rubicon Project common stock will own approximately 52.4% of common stock of the combined company on a fully diluted basis. The Merger is expected to be completed to close in early April 2020. The credit facility with Silicon Valley Bank, matures on March 26, 2020. In light of the pending merger with Rubicon Project which is expected to be closed in early April 2020, the Company does not intend to renew the credit facility.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”).
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of Telaria, Inc. and its wholly-owned subsidiaries. All significant intercompany transactions and balances have been eliminated in the accompanying consolidated financial statements.
Reclassifications	Reclassifications Certain prior period amounts have been reclassified to conform to the current period presentation with no impact on consolidated net income(loss) or cash flows.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions. The Company’s management believes that the estimates, judgments and assumptions used are reasonable based upon information available at the time they are made. These estimates, judgments and assumptions can affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company’s management evaluates estimates, including those related to fair values and useful lives of intangible assets, fair values of stock-based awards, income taxes, and contingent liabilities. Such estimates are based on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that subject the Company to significant concentrations of credit risk consist primarily of cash and cash equivalents and accounts receivable. All of the Company’s cash and cash equivalents are held at financial institutions that management believes to be of high credit quality. The Company’s cash and cash equivalents may exceed federally insured limits at times. The Company has not experienced any losses on cash and cash equivalents to date. The Company determines collectability of its accounts receivable by performing ongoing credit evaluations and monitoring its customers’ accounts receivable balances. For new customer and their agents, which may be advertising agencies or other third-parties, the Company performs a credit check with an independent credit agency and may check credit references to determine creditworthiness. The Company only recognizes revenue when, among other factors, collection is reasonably assured.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers cash deposits and all highly liquid investments with an original maturity of three months or less to be cash equivalents. The fair value of the Company’s cash and cash equivalents approximates their cost plus accrued interest because of the short-term nature of the instruments.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company utilizes fair value measurements when required. The carrying amounts of cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, accounts payable and approximate fair values as of December 31, 2019 and 2018 due to the short-term nature of those instruments.
Accounts Receivable, Net	Accounts Receivable, Net The Company extends credit to customers and generally does not require any security or collateral. Accounts receivable are recorded at the invoiced amount. The Company carries its accounts receivable balances at net realizable value. Management evaluates the collectability of its accounts receivable balances on a periodic basis and determines whether to provide an allowance or if any accounts should be written down and charged to expense as bad debt. The evaluation is based on a past history of collections, current credit conditions, the length of time the account is past due and a past history of write-downs. An accounts receivable balance is considered past due if the Company has not received payments based on agreed-upon terms.
Property and Equipment, Net	Property and Equipment, Net Property and equipment are stated at cost, less accumulated depreciation. Depreciation expense on property and equipment is calculated using the straight-line method over the following estimated useful lives: Computer hardware 3 years Furniture and fixtures 7 years Computer software 3 years Office equipment 3 years Leasehold improvements are amortized over the shorter of the remaining life of the lease or the life of the asset. The cost of additions and expenditures that extend the useful lives of existing assets, are capitalized, while repairs and maintenance costs are charged to operations as incurred.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets The Company periodically reviews long-lived assets, which consists of its property and equipment and intangible assets, for impairment in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 360, “Accounting for the Impairment or Disposal of Long-Lived Assets,”
Goodwill and Intangible Assets, Net	Goodwill and Intangible Assets, Net Goodwill represents the excess of the aggregate purchase price paid over the fair value of the net tangible and intangible assets acquired. Intangible assets that are not considered to have an indefinite useful life are amortized over their useful lives. The Company evaluates the estimated remaining useful lives of purchased intangible assets and whether events or changes in circumstances warrant a revision to the remaining period of amortization. Goodwill is not amortized, but rather is subject to an impairment test. The Company operates as one operating and reporting segment and therefore, evaluates goodwill and other intangible assets with indefinite lives for impairment annually as one singular reporting unit, on October 1 or more frequently when an event occurs or circumstances change that indicates the carrying value may not be recoverable. The Company’s policy is to first perform a qualitative assessment to determine if that it was more likely or not if the reporting unit's carrying value is less than the fair value, indicating the potential for goodwill impairment. If the reporting unit fails the qualitative test then the Company proceeds with the quantitative two step goodwill impairment calculation. The implied fair value of goodwill is determined in the same manner as goodwill recognized in a business combination, which is the excess of the fair value of the reporting unit determined in step one over the fair value of its net assets, including identifiable intangible assets, as if the reporting unit had been acquired. If the carrying value of the reporting unit's goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The Company did not identify any impairment of its goodwill at December 31, 2019, 2018 and 2017 and therefore, for the years ended December 31, 2019, 2018 and 2017 no impairment losses related to goodwill were recorded. The Company also reviews certain identifiable intangible assets for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of intangible assets are measured by a comparison of the carrying amount of the asset or asset group, using an income approach, to future undiscounted net cash flows expected to be generated by the asset or asset group. If such assets are not recoverable, the impairment to be recognized, if any, is measured by the amount which the carrying amount of the assets exceeds the estimated fair value of the assets or asset group. As the Company operates as one business unit and our long-lived assets do not have identifiable cash flows that are independent of the other assets and liabilities of this business unit, the impairment testing on intangible assets is performed at the entity-level. Intangible assets that are not considered to have an indefinite useful life are amortized over their estimated useful lives on a straight-line method as follows: Technology 5 years Customer relationships 6 to 10 years
Revenue Recognition	Revenue Recognition On January 1, 2018, the Company adopted Accounting Standards Update 2014-09 - Revenue from Contracts with Customers (Topic 606) ("ASU" 2014-09") using a modified retrospective approach applied to all contracts that generate revenue in the preceding year. The adoption of this guidance did not have an impact on the amount or timing of revenue recognized by the Company. The Company primarily generates revenue on a transactional basis where it is paid by a publisher each time an advertising impression is monetized on its platform based on a simple and transparent fee structure that the Company establishes with its publisher partners. Generally, the Company keeps a percentage of the advertising spend that is transacted by buyers on our platform, and remits the remainder to the seller. The fee on each transaction is based on the pre-existing agreement between the Company and the seller and the clearing price of the winning bid. The Company recognizes revenue upon fulfillment of its performance obligation to a client, which occurs at the point in time an ad renders and is counted as a paid impression, subject to an underlying agreement existing with the client and a fixed or determinable transaction price. The determination of whether revenue should be reported on a gross or net basis is based on an assessment of whether the Company is acting as the principal or an agent in the transaction. In determining whether the Company is acting as the principal or an agent, the Company followed the accounting guidance for principal-agent considerations. The determination of whether the Company is acting as a principal or an agent in a transaction involves judgment and is based on an evaluation of the terms of each arrangement, none of which are considered presumptive or determinative. For substantially all publisher transactions on the Company's platform, including all transaction monetized through the Company’s programmatic supply-side platform (SSP), the Company reports revenue on a net basis as the Company determined that it acts as an agent for publishers and is not the primary obligor in such transactions, given that: (1) another party is primarily responsible for fulfilling the contract and the Company does not have discretion in establishing prices and (2) the Company does not generally take on inventory risk. However, for certain transactions related to the Company’s outstream business that it acquired in connection with the acquisition of SlimCut in June 2018, the Company reports revenue on a gross basis, based primarily on its determination that the Company acts as the primary obligor in the delivery of advertising campaigns for buyers with respect to such transactions. The following table presents the Company's disaggregated revenue, which reflects the Company's platform revenue, which is reported on a net basis, and certain revenue streams associated with our outstream business, which are reported on a gross basis: December 31, 2019 Net Basis $ 58,457 86 % Gross Basis $ 9,582 14 % Total $ 68,038 100 %
Cost of Revenue	Cost of Revenue The Company's cost of revenue primarily consists of third-party hosting fees, data costs, licensing fees and, for transactions related to the portion of our outstream business that is booked on a gross basis, cost of inventory .
Technology and Development Expenses	Technology and Development Expenses Technology and development costs primarily consist of salaries, incentive compensation, stock-based compensation and other personnel-related costs for development and engineering personnel. Additional expenses in this category include costs related to development, quality assurance and testing of new technology, maintenance and enhancement of the Company's existing technology and infrastructure as well as consulting, travel and other related overhead. Due to the rapid development and changes in the Company’s business and underlying technology to date, the Company has expensed development costs in the same period that those costs were incurred.
Sales and Marketing Expenses	Sales and Marketing Expenses Sales and marketing expenses primarily consist of salaries, incentive compensation, stock-based compensation and other personnel-related costs for our marketing and sales and sales support employees. Additional expenses in this category include marketing programs, travel and other related overhead. These costs are expensed when incurred and are included in sales and marketing expenses.
Stock-Based Compensation Expenses	Stock-Based Compensation Expenses The Company accounts for stock-based compensation expense under FASB ASC 718, “Compensation—Stock Compensation,” which requires the measurement and recognition of stock-based compensation expense based on estimated fair values, for all stock-based payment awards made to employees, and FASB ASC 505-50, “ Equity-Based Payments to Non-Employees ,” which requires the measurement and recognition of stock-based compensation expense based on the estimated fair value of services or goods being received, for all stock-based payment awards made to other service providers and non-employees. The Company measures its stock-based payment awards based on its estimate of the fair value of such award using an option-pricing model, for stock option awards, and the fair value of the Company’s common stock on the date of grant, for restricted stock unit awards. The value of the portion of the award that is ultimately expected to vest is recognized as an expense over the requisite service periods in the Company’s consolidated statements of operations. The Company recognizes compensation expenses for the value of its stock-based payment awards, which have graded vesting criteria based on service and market conditions, using the straight-line method, over the requisite service period of each of the awards, net of actual forfeitures.
Income Taxes	Income Taxes Income taxes represents amounts paid or payable (or received or receivable) for the current year and includes any changes in deferred taxes during the year. The Company recognizes deferred tax assets and liabilities for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, as well as for operating loss and tax credit carry-forwards. The Company measures deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which the Company expects to recover or settle those temporary differences. The Company recognizes the effect of a change in tax rates on deferred tax assets and liabilities in the results of operations in the period that includes the enactment date. Deferred income tax expense represents the change during the period in deferred tax assets and deferred tax liabilities. The components of the deferred tax assets and liabilities are individually classified as non-current. The Company reduces the measurement of a deferred tax asset, if necessary, by a valuation allowance if it is more likely than not that the Company will not realize some or all of the deferred tax asset. As a result of the Company’s historical operating performance and the cumulative net losses incurred to date, the Company does not have sufficient objective evidence to support the recovery of the deferred tax assets. Accordingly, the Company has established a valuation allowance against substantially all of its deferred tax assets for financial reporting purposes because the Company believes it is more likely than not that these deferred tax assets will not be realized. The Company accounts for uncertain tax positions by recognizing the financial statement effects of a tax position only when, based upon technical merits, it is “more-likely-than-not” that the position will be sustained upon examination. Potential interest and penalties associated with unrecognized tax positions are recognized in its provision for income taxes in the consolidated statements of operations. On December 22, 2017, the U.S. President signed the Tax Cuts and Jobs Act (the “Act”) into law. Effective January 1, 2018, among other changes, the Act (1) reduces the U.S. federal corporate tax rate from 35 percent to 21 percent, (2) changes the rules relating to net operating loss ("NOL") carryforwards and carrybacks, (3) eliminates the corporate alternative minimum tax ("AMT") and changes how existing AMT credits can be realized; and (4) requires companies to pay a one-time transition tax on certain unrepatriated earnings of foreign subsidiaries. For the year ended December 31, 2017, amounts recorded principally related to the reduction in the U.S. corporate income tax rate to 21%, which resulted in the Company reducing its net deferred tax asset and associated valuation allowance. At December 31, 2018, the Company completed its accounting of SAB 118 for all of the enactment-date income tax effects of the Act. The Company did not make any measurement-period adjustments and there were no additional material adjustments related to the Act. The Tax Act did not have a material impact on our financial statements since our deferred temporary differences in the United States are fully offset by a valuation allowance and we do not have any significant off shore earnings from which to record the mandatory transition tax. We did not record any provision for federal income taxes for the period ended December 31, 2019.
Net Income (Loss) Per Share Attributable to Common Stockholders	Net Income (Loss) Per Share Attributable to Common Stockholders Basic net income (loss) per share attributable to common stockholders is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding for the period. Diluted net income (loss) per share attributable to common stockholders is computed by dividing net income (loss) attributable to common stockholders by the weighted-average number of shares of common stock outstanding for the period, adjusted to reflect potentially dilutive securities using the treasury stock method for the purchase of the Company's common stock, stock option awards and restricted stock unit awards. Due to the Company’s loss from continuing operations, net of income taxes: (i) stock option awards; and (ii) restricted stock unit awards were not included in the computation of diluted net loss per share attributable to common stockholders, as the effects would be anti-dilutive. Accordingly, basic and diluted net loss per share attributable to common stockholders is equal for the years presented.
Comprehensive Income (Loss)	Comprehensive Income (Loss) Comprehensive income (loss) consists of foreign currency translation adjustments. Total comprehensive income (loss) and its component is presented in the accompanying consolidated statements of comprehensive income (loss).
Foreign Currency Translation Adjustments	Foreign Currency Translation AdjustmentsThe functional currency of the Company’s international subsidiaries is their local currency. The Company translates the financial statements of these subsidiaries to U.S. dollars using period-end exchange rates for assets and liabilities, and average exchange rates for revenue and expenses. Translation gains and losses are recorded in accumulated other comprehensive (loss) income as a component of stockholders’ equity.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements FASB Accounting Standards Update No. 2019-12 - Income Taxes (Topic 740) - Simplifying the Accounting for Income Taxes In December 2019, Financial Accounting Standards Board, ("FASB") issued an Accounting Standards Update, ("ASU") No. 2019-12 Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this update simplify the accounting for income taxes by removing several exceptions including the exception to the incremental approach for intra-period tax allocation when there is a loss from continuing operations, an exception to the general methodology for calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2020 with early adoption permitted, including interim periods. The Company is currently evaluating the impact the update will have on its consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-15 - Intangibles—Goodwill and Other— Internal-Use Software (Subtopic 350-40) In August 2018, Financial Accounting Standards Board, ("FASB") issued an Accounting Standards Update, ("ASU") No. 2018-15 Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract. The amendments in this update align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2019 with early adoption permitted, including interim periods. The Company does not believe the adoption of this amendment will have a material impact prospectively to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-13 - Fair Value Measurement (Topic 820) In August 2018, FASB issued ASU No. 2018-13 Fair Value Measurements (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in the update modify the disclosure requirements on fair value measurements in Topic 820, including the removal, modification and additions of certain disclosure requirements for Level 3 fair value measurements and for transfers between Level 1 and Level 2 of the fair value hierarchy. The requirement is for all entities that are required to make disclosures about recurring or nonrecurring fair value measurements to apply the guidance to annual reporting periods beginning after December 15, 2019 with early adoption permitted for any modified or removed disclosures only. The Company does not believe adoption of this amendment will have a material impact prospectively to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-07 - Improvements to Nonemployee Share-Based Payment Accounting (Topic 718) In June 2018, FASB issued an ASU No. 2018-07 Compensation-Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. The amendment simplifies the accounting for equity based payments to nonemployees by expanding the scope of Topic 718 to include nonemployees. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2018 with early adoption permitted, including interim periods. The Company has adopted this update with no material impact to the Company's condensed consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2018-02 - Income Statement - Reporting Comprehensive Income (Topic 220) In February 2018, FASB issued an ASU No. 2018-02 Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2018 with early adoption permitted, including the interim periods. The Company has adopted this update with no material impact to the Company's condensed consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2017-01 - Business Combinations (Topic 805) In January 2017, FASB issued ASU No. 2017-01, “Business Combinations (Topic 805): Clarifying the Definition of a Business”. The amendment was issued to clarify the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The amendments in this ASU provide a screen to determine when a set (inputs and processes that produce an output) is not a business. The screen requires that when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or a group of similar identifiable assets, the set is not a business. This screen reduces the number of transactions that need to be further evaluated. The requirement is for public business entities to apply the guidance to annual reporting periods beginning after December 15, 2017. The Company adopted this update on a prospective basis in the first quarter of 2018 with no material impact to the Company's consolidated financial statements and related disclosures. FASB Accounting Standards Update No. 2016-02 — Leases (Topic 842) In February 2016, the FASB issued ASU No. 2016-02, Leases, which clarifies and improves existing authoritative guidance related to leasing transactions. This ASU will require the recognition of lease assets and liabilities for operating leases with terms of more than 12 months. The presentation of leases within the consolidated statement of operations and cash flows will be substantially consistent with current accounting guidance. This update is effective for fiscal years beginning after December 15, 2018, with early adoption permitted. The Company implemented this guidance in the first quarter of 2019 using the modified retrospective transition method and will not restate comparative periods. Refer to note 12 - ASC 842 (Leases) for more information.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
Summary of Significant Accounting Policies (Tables)	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of allowance for doubtful accounts	The following table presents the changes in the allowance for doubtful accounts: Years Ended December 31, 2019 2018 2017 Allowance for doubtful accounts: Beginning balance $ 982 $ 359 $ — Add: Reserves 386 1,052 — Less: Write-offs and other adjustments (80) (429) 359 Ending balance $ 1,288 $ 982 $ 359
Schedule of estimated useful lives of property and equipment	Depreciation expense on property and equipment is calculated using the straight-line method over the following estimated useful lives: Computer hardware 3 years Furniture and fixtures 7 years Computer software 3 years Office equipment 3 years
Schedule of estimated useful lives of intangible assets that are not considered to have an indefinite useful life	Intangible assets that are not considered to have an indefinite useful life are amortized over their estimated useful lives on a straight-line method as follows: Technology 5 years Customer relationships 6 to 10 years
Schedule of disaggregation of revenue	December 31, 2019 Net Basis $ 58,457 86 % Gross Basis $ 9,582 14 % Total $ 68,038 100 %

Disposition of Buyer Platform (

Disposition of Buyer Platform (Tables)	12 Months Ended
Disposition of Buyer Platform (Tables)	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Schedules of results of operations and supplemental cash flow information for discontinued operations	The following table presents the major financial lines constituting the results of operations for discontinued operations to the income (loss) from discontinued operations, net of income taxes, presented separately in the Consolidated Statements of Operations: Years Ended 2018 2017 Revenue $ — $ 88,255 Cost of revenue — 53,486 Gross profit — 34,769 Operating expenses: Technology and development — 7,594 Sales and marketing — 16,149 General administrative — 547 Depreciation and amortization — 3,174 Impairment charges — — Total operating expenses — 27,464 Income from discontinued operations — 7,305 Interest and other (expense), net — — Income from discontinued operations before income taxes — 7,305 Provision (benefit) for income taxes — 4 Income from discontinued operations, net of income taxes — 7,301 (Loss) gain on sale of discontinued operation before income taxes (136) 14,958 Provision for income taxes — 332 Gain on sale of discontinued operation, net of income taxes (136) 14,626 Income from discontinued operations, net of income taxes — 7,301 Income (loss) from discontinued operations, net of income taxes $ (136) $ 21,927 The following table presents supplemental cash flow information of the discontinued operations: Years Ended 2018 2017 Non-cash adjustments to net cash from operating activities: Depreciation and amortization $ — $ 3,174 Stock based compensation expense — 673 Cash used in investing activities: Capital expenditures $ — $ 475

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
Fair Value Measurements (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured at fair value on a recurring basis	Assets and Liabilities Measured at Fair Value on a Recurring Basis December 31, 2019 December 31, 2018 Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Assets: Money market funds (1) $ 27,235 — — $ 27,235 $ 28,671 $ — $ — $ 28,671 Total assets $ 27,235 — — $ 27,235 $ 28,671 $ — $ — $ 28,671 Liabilities: Contingent consideration on acquisition liability (2) $ — $ — $ — $ — $ — $ — $ 1,500 $ 1,500 Total liabilities $ — $ — $ — $ — $ — $ — $ 1,500 $ 1,500 (1) Money market funds are included within cash and cash equivalents in the Company’s consolidated balance sheets. As short-term, highly liquid investments readily convertible to known amounts of cash, the Company’s money market funds have carrying values that approximate their fair value. Amounts above do not include $26,929 and $18,988 of operating cash balances as of December 31, 2019 and 2018, respectively. (2)
Schedule of changes in Level 3 instruments measured at fair value on a recurring basis	The following table represents the changes in the Company’s Level 3 instruments measured at fair value on a recurring basis for the years ended December 31, 2019 and December 31, 2018: 2019 2018 Beginning balance at January 1, $ 1,500 $ — Contingent consideration on acquisition (1) — 1,443 Contingent consideration paid, SlimCut acquisition (1,500) — Mark-to-market expense (2) — 57 Ending balance at December 31, $ — $ 1,500 (1) Represents contingent consideration attributable to the SlimCut acquisition (as defined below see Note 7) that has been recorded during the years ended 2019 and 2018, respectively. Refer to note 7 for further discussion of contingent consideration payments paid in connection with the Company’s acquisitions of SlimCut. (2) Reflects expense incurred based on the Company’s re-measurement at December 31, 2018, of the estimated fair value of the contingent consideration relating to the SlimCut acquisition (as defined below, see Note 7). Amounts recorded as mark-to-market expense relating to Level 3 instruments are recorded in operating expense. Refer to the table above regarding assumptions used for Level 3 instruments and Note 7 for further discussion of contingent consideration payments paid in connection with the Company’s acquisition of SlimCut.

Prepaid Expenses and Other Cu_2

Prepaid Expenses and Other Current Assets (Tables)	12 Months Ended
Prepaid Expenses and Other Current Assets (Tables)	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of prepaid expenses and other current assets	Prepaid expenses and other current assets consisted of: December 31, 2019 2018 Prepaid expenses and other current assets $ 4,346 $ 3,105 Prepaid rent — 106 Deferred rental income 259 170 Total prepaid expenses and other current assets $ 4,605 $ 3,381

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	12 Months Ended
Property and Equipment, Net (Tables)	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of property and equipment, net	Property and equipment, net consisted of: December 31, 2019 2018 Leasehold improvements $ 3,047 $ 3,009 Computer hardware 1,120 1,045 Furniture and fixtures 452 539 Computer software 830 800 Office equipment 91 92 Total 5,540 5,485 Less: accumulated depreciation (3,550) (2,696) Total property and equipment, net $ 1,990 $ 2,789

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets, Net (Tables)	12 Months Ended
Goodwill and Intangible Assets, Net (Tables)	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in the carrying amount of goodwill	The changes in the carrying amount of goodwill as of December 31, 2019 and 2018, were as follows: 2019 2018 Beginning balance as of January 1, $ 9,478 $ 6,320 Acquisition-related goodwill — 3,424 Foreign exchange impact (75) (266) Ending balance as of December 31, $ 9,403 $ 9,478
Schedule of acquisition-related intangible assets, net	Information regarding the Company’s acquisition-related intangible assets, net is as follows: December 31, 2019 Gross Carrying Accumulated Net Carrying Customer relationships (1) $ 4,729 $ (1,877) $ 2,852 Patent Fixed Asset (3) 40 — 40 Technology (2) 954 (298) 656 $ 5,723 (2,175) 3,548 December 31, 2018 Gross Carrying Accumulated Net Carrying Customer relationships (1) $ 4,797 $ (1,283) $ 3,514 Technology (2) $ 973 $ (108) 865 $ 5,770 $ (1,391) $ 4,379 (1) The decrease for the year ended December 31, 2019 was due to accumulated amortization for the year. The increase in gross carrying amount for customer relationships in December 31, 2018, was due to an increase of $2,900 relating to the acquisition of SlimCut, which was partially offset by a decrease of $291 from the foreign exchange impact for the same period. From the same period accumulated amortization expense increased by $508, partially offset by foreign exchange impact over the same period of $106. (2) The decrease for the year ended December 31, 2019 was due to accumulated amortization for the year. For the year ended December 31, 2018, the gross carrying amount for technology includes an increase of $1,000 due to the acquisition of SlimCut which was partially offset by foreign exchange decrease of $27. Accumulated amortization increased by $109 over the same period due to the acquisition of SlimCut, partially offset by foreign exchange impact. (3) The Company's Patent Fixed Assets are not required to be amortized.
Schedule of future amortization expense of intangible assets	The estimated future amortization expense of customer relationships for the next five years are as follows: 2020 $ 835 2021 658 2022 467 2023 360 2024 and thereafter 1,228 Total $ 3,548

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Schedule of components of the Company's loss before income tax provision	The components of the Company’s loss before income tax provision for the years ended December 31, 2019, 2018 and 2017 are as follows: Years Ended December 31, 2019 2018 2017 Loss from continuing operations before income taxes: Domestic $ (10,513) $ (9,034) $ (18,147) Foreign 1,982 (206) (1,900) Total loss from continuing operations before income taxes $ (8,531) $ (9,240) $ (20,047)
Schedule of the Company's income tax provision	The Company’s income tax provision, which is comprised of minimum U.S. federal, state and local taxes and taxes from foreign jurisdictions, consists of the following: Years Ended December 31, 2019 2018 2017 Provision for current income taxes: U.S. federal $ — $ 10 $ — U.S. state and local (26) 91 (2) Foreign 556 97 154 Total provision for current income taxes 530 198 152 Benefit for deferred income taxes: U.S. federal — (10) (332) U.S. state and local — — — Foreign (54) (198) (167) Total benefit for deferred income taxes (54) (208) (499) Total (benefit) provision for income taxes $ 476 $ (10) $ (347)
Schedule of reconciliation between the U.S. federal statutory income tax rate to the effective tax rate	A reconciliation between the U.S. federal statutory income tax rate to the effective tax rate, by applying such rates to loss before income tax provision, for the years ended December 31, 2019, 2018 and 2017 are as follows: Years Ended December 31, 2019 2018 2017 U.S. federal statutory income tax rate (21.00) % (21.00) % (34.00) % State income tax rate, net of U.S. federal tax benefit (0.25) 0.77 (0.01) Stock-based compensation expense (11.36) (6.45) — Acquisition related costs — — 3.11 Mark-to-market expense — — 0.25 Change in income tax rates 2.40 (6.33) (1.03) Change in deferred tax asset valuation 31.32 34.08 29.03 Trademark income — (1.54) — GILTI 3.55 % — — Goodwill impairment charge — — 1.46 AMT credit — — (1.65) Meals and Entertainment 0.89 0.55 1.10 Other 0.03 (0.20) 0.01 Effective tax rate 5.58 % (0.12) % (1.73) %
Summary of significant components of the Company's deferred tax assets and liabilities	Significant components of the Company’s deferred tax assets and liabilities reported on a net cross jurisdictional basis are summarized as follows: December 31, 2019 2018 Deferred tax assets: Net operating losses and tax credits $ 29,514 $ 29,322 Stock-based compensation expense 4,028 4,118 Deferred rent — 1,049 Depreciation and amortization expense 275 1,585 Accrued expenses 831 583 ROU liability 7,656 — Transaction costs 467 — Allowance for doubtful accounts 339 283 Unrealized gains and losses 165 51 Total deferred tax assets before valuation allowance 43,275 36,991 Less: valuation allowance (36,877) (36,692) Total deferred tax assets, net of valuation allowance 6,398 299 Deferred tax liabilities: Intangible assets (993) (1,243) Unrealized gains and losses (135) (16) Depreciation Expense (90) ROU asset (6,126) — Total deferred tax liabilities (7,344) (1,259) Total deferred tax liabilities, net $ (946) $ (960)

Accounts Payable and Accrued _2

Accounts Payable and Accrued Expenses (Tables)	12 Months Ended
Accounts Payable and Accrued Expenses (Tables)	Dec. 31, 2019
Payables and Accruals [Abstract]
Schedule of accounts payable and accrued expenses	Accounts payable and accrued expenses consisted of: December 31, 2019 2018 Trade accounts payable $ 152,274 $ 95,028 Accrued compensation, benefits and payroll taxes 5,436 5,468 Accrued cost of revenue 7,152 7,127 Other payables and accrued expenses 3,956 2,368 Total accounts payable and accrued expenses $ 168,818 $ 109,991

Adoption of ASC Topic 842, Leas

Adoption of ASC Topic 842, Leases (Tables)	12 Months Ended
Adoption of ASC Topic 842, Leases (Tables)	Dec. 31, 2019
Leases [Abstract]
Schedule of carrying value of right-of-use assets	The following summarizes right-of-use assets as of December 31, 2019 (in thousands): 2019 Beginning balance at January 1, operating lease right-of-use, asset gross $ 26,449 Additional Leases in 2019 1,385 Total operating lease right-of-use asset, gross 27,834 Less: accumulated amortization (4,041) Operating lease right-of-use asset, net $ 23,793
Schedule of lease cost and sublease income	The following table summarizes the Company's lease cost and sublease income for the year ended December 31, 2019: December 31, 2019 Operating lease cost $ 6,116 Variable lease cost 762 Short-term lease cost 345 Sublease income, gross (4,330) Total lease cost $ 2,893
Schedule of future payments under operating leases	As of December 31, 2019, the future payments under the Company's operating leases for each of the next five years and thereafter are as follows: 2020 $ 7,293 2021 6,084 2022 5,119 2023 5,092 2024 5,124 Thereafter 8,073 Subtotal 36,785 Less: imputed interest (7,252) Present value of minimum lease payments 29,533 Less: current portion of operating lease obligations (5,487) Total long-term lease obligations $ 24,046

Changes in Accumulated Other _2

Changes in Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of components of accumulated other comprehensive income (loss)	The following table provides the components of accumulated other comprehensive (loss) income from continuing operations: Foreign Beginning balance at January 1, 2019 $ (949) Other comprehensive loss (1) (238) Ending balance at December 31, 2019 $ (1,187) Foreign Beginning balance at January 1, 2018 $ (232) Other comprehensive income (1) (717) Ending balance at December 31, 2018 $ (949)

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
Stock-Based Compensation (Tables)	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Schedule of the stock-based compensation expense	The Company included stock-based compensation expense related to all of the Company’s stock-based payments awards in various operating expense categories for the years ended December 31, 2019, 2018 and 2017 as follows: Years Ended 2019 2018 2017 Stock-based compensation expense: Technology and development $ 818 $ 492 $ 615 Sales and marketing 2,196 1,470 2,062 General and administrative 2,745 1,858 2,044 Total in continuing operations $ 5,759 $ 3,820 $ 4,721 Discontinued operations — — 673 Total stock-based compensation expense $ 5,759 $ 3,820 $ 5,394
Schedule of stock option awards outstanding and exercisable by exercise price range	The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019: Options Outstanding Options Exercisable Options Weighted Weighted Options Weighted Weighted Range of Exercise Prices Outstanding (Years) Per Share Exercisable (Years) Per Share $1.11 - $1.94 658,915 2.25 $ 1.86 635,477 2.55 $ 1.85 $2.00 – $2.88 1,305,000 5.92 2.40 894,269 4.79 2.45 $3.60 – $4.83 1,921,869 4.03 4.22 1,463,677 2.61 4.18 $5.01 – $5.90 1,019,324 2.75 5.56 437,037 0.71 5.57 $6.75 – $8.37 422,648 4.83 8.17 163,164 3.03 7.59 5,327,756 3.96 $ 3.70 3,593,624 2.74 $ 4.00
Schedule of stock option activity for all plans	The following table presents summary information of the Company’s stock option awards outstanding and exercisable under all plans as of December 31, 2019: Number of Weighted December 31, 2018 (1) 6,348,251 $ 3.73 Stock option awards granted 884,479 6.06 Stock option awards forfeited (215,813) 4.33 Stock option awards exercised (1,689,161) 4.05 Stock option awards outstanding as of December 31, 2019 5,327,756 $ 4.00 Stock option awards vested and exercisable as of December 31, 2019 3,593,624 $ 4.00 (1) Includes certain employment inducement stock option awards granted outside of the Company’s stockholder approved equity compensation plans. These grants are generally subject to the same terms and conditions as applied to awards granted under the Company’s 2013 Plan. Stock option awards are generally granted at the fair market value of the Company’s common stock on the date of grant, generally vest over periods up to four years, have a one year cliff with monthly vesting thereafter, and have terms not to exceed 10 years. (2) Includes the vested portion of each employment inducement stock option award.
Schedule of stock options other selected information	Other selected information is as follows: Years Ended 2019 2018 2017 Aggregate fair value of stock option awards vested $ 1,183 $ 374 $ 644 Aggregate intrinsic value of outstanding stock option awards 954 1,270 5,503 Aggregate intrinsic value of stock option awards exercised 5,533 1,713 748 Weighted-average grant-date fair value per share of stock option awards granted 3.21 1.91 1.13 Cash proceeds received from stock option awards exercised $ 6,749 $ 1,845 $ 699
Schedule of assumptions for stock option awards granted	The following table presents the assumptions for stock option awards granted during the years ended December 31, 2019, 2018 and 2017: 2019 2018 2017 Volatility 57% - 57% 49% - 55% 49% - 50% Risk-free interest rate 1.68% - 2.55% 2.37% - 3.01% 1.85% to 2.02% Expected life (in years) 5.45 - 5.54 5.32 - 5.58 5.65 - 5.67 Dividend yield 0.00 % 0.00 % 0.00 % 2018 Exercise price $ 2.36 Volatility 50 % Risk-free interest rate 2.38 % Maturity 10.00 Milestone 1 $ 4.00 Milestone 2 $ 5.00 Cost of equity 17 % Dividend yield — %
Schedule of the non-vested restricted stock unit award activity	The following table presents a summary of the Company’s non-vested restricted stock unit award activity under all plans and related information for the year ended December 31, 2019: Number of Weighted Non-vested restricted stock unit awards outstanding as of December 31, 2018 2,350,054 $ 3.00 Restricted stock unit awards granted 1,364,236 6.10 Restricted stock unit awards forfeited (265,681) 4.32 Restricted stock unit awards vested (973,568) 2.91 Non-vested restricted stock unit awards outstanding as of December 31, 2019 2,475,041 4.61
Schedule of restricted stock unit awards other selected information	Years Ended 2019 2018 2017 Aggregate grant date fair value of restricted stock unit awards outstanding $ 11,398 $ 7,050 $ 5,515
Schedule of assumptions for awards issued under the 2014 ESPP	For the years ended December 31, 2019, 2018, and 2017 the following assumptions were used for awards issued under the 2014 ESPP: 2019 2018 2017 Volatility 60% - 93% 36% - 42% 42% - 52% Risk-free interest rate 1.37% - 2.86% 1.13% - 2.28% 0.70% - 1.1% Expected life (in years) 0.50 0.50 0.50 Dividend yield 0.00 % 0.00 % 0.00 %

Net Income (Loss) Per Share A_2

Net Income (Loss) Per Share Attributable to Common Stockholders (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of basic and diluted net loss per share attributable to common stockholders	The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders: Years Ended 2019 2018 2017 Numerator: Loss from continuing operations, net of income taxes $ (9,007) $ (9,230) $ (19,700) Total income (loss) from discontinued operations, net of income taxes — (136) 21,927 Net income (loss) $ (9,007) (9,366) 2,227 Denominator: Weighted-average number of shares of common stock outstanding for basic and diluted net loss per share attributable to common stockholders 45,864,500 51,764,506 50,511,366 Basic and diluted net income (loss) per share: Loss from continuing operations $ (0.20) $ (0.18) $ (0.39) Income from discontinued operations — — 0.43 Net income (loss) $ (0.20) $ (0.18) $ 0.04
Schedule of securities excluded from the calculation of diluted net loss attributable to common stockholders	The following securities were outstanding during the years presented below and have been excluded from the calculation of diluted net loss per share attributable to common stockholders per share because the effect is anti-dilutive: Years Ended 2019 2018 2017 Stock option awards 5,327,756 6,348,251 6,311,059 Restricted stock unit awards 2,474,416 2,349,429 2,518,375 Total anti-dilutive securities outstanding 7,802,172 8,697,680 8,829,434

Supplemental Disclosure of Ca_2

Supplemental Disclosure of Cash Flow Information (Tables)	12 Months Ended
Supplemental Disclosure of Cash Flow Information (Tables)	Dec. 31, 2019
Supplemental Cash Flow Elements [Abstract]
Schedule of supplemental cash flow information	Years Ended 2019 2018 2017 Supplemental disclosure of cash flow activities: Cash paid for income taxes $ 55 $ 93 $ 416 Cash paid for operating leases subject to ASU 842 $ 6,866 $ — $ — Cash paid for interest expense $ — $ — $ 101 Supplemental disclosure of non-cash investing and financing activities: Common stock issued for settlement of restricted stock unit awards $ 1,391 $ 1,312 $ 3,206 Purchase of property and equipment in accounts payable and accrued expenses $ 116 $ 6 $ 13 Cash holdback related to acquisition $ — $ 472 $ — Deferred tax liability related to acquisition $ — $ 1,015 $ — Contingent consideration on acquisition $ — $ 1,500 $ —

Quarterly Results of Operatio_2

Quarterly Results of Operations (Tables)	12 Months Ended
Quarterly Results of Operations (Tables)	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule of quarterly financial information	Unaudited Three Months Ended 2019 March 31, June 30, September 30, December 31, Revenue $ 13,622 $ 18,216 $ 16,564 $ 19,636 Gross profit 11,171 14,748 13,145 15,349 Income (loss) from continuing operations, net of income taxes (4,333) (1,484) (2,801) (389) Net loss $ (4,333) $ (1,484) $ (2,801) $ (389) Net earnings (loss) per share - basic and diluted: Loss from continuing operations, net of income taxes (1) $ (0.10) $ (0.03) $ (0.06) $ (0.01) Net loss (1) $ (0.10) $ (0.03) $ (0.06) $ (0.01) Basic and diluted weighted-average number of shares outstanding (2) 44,831,453 45,702,810 46,158,465 46,710,402 Unaudited Three Months Ended 2018 March 31, June 30, September 30, December 31, Revenue $ 9,601 $ 12,430 $ 13,478 $ 19,656 Gross profit 8,573 11,294 11,610 16,844 Income (loss) from continuing operations, net of income taxes (6,127) (2,960) (1,581) 1,438 Total income (loss) from discontinued operations, net of income taxes 26 (161) — (1) Net income (loss) (6,101) (3,121) (1,581) 1,437 Net earnings (loss) per share - basic Loss from continuing operations, net of income taxes (1) (0.12) (0.06) (0.03) 0.03 Income (loss) from discontinued operations, net of income taxes (1) — — — — Net income (loss) (1) $ (0.12) $ (0.06) $ (0.03) $ 0.03 Net earnings (loss) per share - diluted: Income (loss) from continuing operations, net of income taxes( 1) (0.12) (0.06) (0.03) 0.03 Income from discontinued operations, net of income taxes (1) — — — — Net income (loss) (1) $ (0.12) $ (0.06) $ (0.03) $ 0.03 Weighted-average number of shares of common stock outstanding: Basic 51,827,685 52,241,605 52,716,626 50,278,668 Diluted 51,827,685 52,241,605 52,716,626 51,266,321 (1) Basic and diluted loss from continuing operations, net of income taxes; income (loss) from discontinued operations, net of income taxes and net income (loss) is computed independently for each of the quarters presented. Therefore, the sum of all quarterly basic and diluted loss from continuing operations, net of income taxes; income (loss) discontinued operations, net of income taxes and net income (loss) per share may not equal the annual basic and diluted earnings (loss) per share calculations. (2) Due to the Company’s loss from continuing operations, net of income taxes, all potentially dilutive securities are anti-dilutive and, therefore, basic and diluted weighted average common shares outstanding are equal for all periods presented.

Organization and Description _2

Organization and Description of Business - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended
	Apr. 30, 2020	Feb. 11, 2020	Aug. 07, 2017
Forecast
Disposition
Number of shares received upon conversion of one share of Company stock (shares)	1.082
Subsequent Event
Disposition
Estimated ownership of combined company by Telaria pre-merger shareholders (percent)		47.60%
Estimated ownership of combined company by Rubicon Project pre-merger shareholders (percent)		52.40%
Buyer Platform \| Taptica Ltd \| Discontinued operations disposed of by sale
Disposition
Total consideration			$ 50,000

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Concentration of Credit Risk (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accounts receivable \| DSP \| One DSP
Concentrations of credit risk
Concentration risk percent	46.50%	32.00%

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Accounts Receivable, Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts:
Beginning balance	$ 982	$ 359	$ 0
Add: Reserves	386	1,052	0
Less: Write-offs	(80)	(429)	359
Ending balance	$ 1,288	$ 982	$ 359

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Property and Equipment, and Impairment of Long-lived Assets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property and Equipment, Net
Impairment losses on long-lived assets	$ 0	$ 0	$ 0
Computer hardware
Property and Equipment, Net
Estimated useful lives	3 years
Furniture and fixtures
Property and Equipment, Net
Estimated useful lives	7 years
Computer software
Property and Equipment, Net
Estimated useful lives	3 years
Office equipment
Property and Equipment, Net
Estimated useful lives	3 years

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Goodwill, Advertising Costs, Foreign Currency Translation (Details)	12 Months Ended
	Dec. 31, 2019USD ($)reporting_unitsegment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Goodwill and Intangible Assets Disclosure
Number of operating segments \| segment	1
Number of reportable segments \| segment	1
Number of reporting units \| reporting_unit	1
Impairment of goodwill	$ 0	$ 0	$ 0
Sales and Marketing Expenses
Advertising costs	95,000	75,000	183,000
Foreign Currency Translation Adjustments
Foreign currency translation adjustment	(238,000)	(717,000)	99,000
Net gain (loss) resulting from transactions denominated in foreign currencies	$ (50,000)	$ 4,000	$ 44,000
Technology
Goodwill and Intangible Assets Disclosure
Intangible assets estimated useful life	5 years
Customer relationships \| Minimum
Goodwill and Intangible Assets Disclosure
Intangible assets estimated useful life	6 years
Customer relationships \| Maximum
Goodwill and Intangible Assets Disclosure
Intangible assets estimated useful life	10 years

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue	$ 19,636	$ 16,564	$ 18,216	$ 13,622	$ 19,656	$ 13,478	$ 12,430	$ 9,601	$ 68,038	$ 55,165	$ 43,799
Percent of total revenue									100.00%
Net Basis
Disaggregation of Revenue [Line Items]
Revenue									$ 58,457
Percent of total revenue									86.00%
Gross Basis
Disaggregation of Revenue [Line Items]
Revenue									$ 9,582
Percent of total revenue									14.00%

Disposition of Buyer Platform -

Disposition of Buyer Platform - Narrative (Details) - USD ($) $ in Thousands	Aug. 07, 2017	Jun. 30, 2018	Sep. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disposition
Other income to be recognized related to sale of trade name rights	$ 1,000
Time period for ratable recognition of other income	18 months
Gain (loss) on sale of discontinued operations, net of tax				$ 0	$ (136)	$ 14,626
Discontinued operations disposed of by sale \| Buyer Platform
Disposition
Gain (loss) on sale of discontinued operations, net of tax			$ 14,924		$ (136)	$ 14,626
Discontinued operations disposed of by sale \| Buyer Platform \| Taptica Ltd
Disposition
Total consideration	$ 50,000
Other income recognized as result of title transfer		$ 566
Tremor Video DSP Trade Name
Disposition
Proceeds from sale of right to use trade name (included in total consideration)	$ 1,000
Time period following closing for buyer's right to use trade name	18 months

Disposition of Buyer Platform_2

Disposition of Buyer Platform - Results of Operations for Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating expenses:
Income from discontinued operations, net of income taxes						$ 0	$ 0	$ 7,301
Gain on sale of discontinued operation, net of income taxes						0	(136)	14,626
Total income (loss) from discontinued operations, net of income taxes	$ (1)	$ 0	$ (161)	$ 26		$ 0	(136)	21,927
Discontinued operations disposed of by sale \| Buyer Platform
Disposition
Revenue							0	88,255
Cost of revenue							0	53,486
Gross profit							0	34,769
Operating expenses:
Technology and development							0	7,594
Sales and marketing							0	16,149
General administrative							0	547
Depreciation and amortization							0	3,174
Impairment charges							0	0
Total operating expenses							0	27,464
Income from discontinued operations							0	7,305
Interest and other (expense), net							0	0
Income from discontinued operations before income taxes							0	7,305
Provision (benefit) for income taxes							0	4
Income from discontinued operations, net of income taxes							0	7,301
(Loss) gain on sale of discontinued operation before income taxes							(136)	14,958
Provision for income taxes							0	332
Gain on sale of discontinued operation, net of income taxes					$ 14,924		(136)	14,626
Total income (loss) from discontinued operations, net of income taxes							$ (136)	$ 21,927

Disposition of Buyer Platform_3

Disposition of Buyer Platform - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Non-cash adjustments to net cash from operating activities:
Stock based compensation expense	$ 5,759	$ 3,820	$ 5,394
Discontinued operations disposed of by sale \| Buyer Platform
Non-cash adjustments to net cash from operating activities:
Depreciation and amortization		0	3,174
Stock based compensation expense		0	673
Cash used in investing activities:
Capital expenditures		$ 0	$ 475

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Jun. 08, 2018
Liabilities:
Contingent consideration on acquisition liability		$ 1,500	$ 1,500
Operating cash balances not included in fair value table	$ 26,929	18,988
Recurring
Assets:
Money market funds	27,235	28,671
Total assets	27,235	28,671
Liabilities:
Contingent consideration on acquisition liability	0	1,500
Total liabilities	0	1,500
Recurring \| Level 1
Assets:
Money market funds	27,235	28,671
Total assets	27,235	28,671
Liabilities:
Contingent consideration on acquisition liability	0	0
Total liabilities	0	0
Recurring \| Level 2
Assets:
Money market funds	0	0
Total assets	0	0
Liabilities:
Contingent consideration on acquisition liability	0	0
Total liabilities	0	0
Recurring \| Level 3
Assets:
Money market funds	0	0
Total assets	0	0
Liabilities:
Contingent consideration on acquisition liability	0	1,500
Total liabilities	$ 0	$ 1,500

Fair Value Measurements - Chang

Fair Value Measurements - Changes in Level 3 Instruments (Details) - Recurring - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Changes in the Company's Level 3 instruments measured at fair value
Beginning balance	$ 1,500	$ 0
Contingent consideration on acquisition	0	1,443
Contingent consideration paid, SlimCut acquisition	(1,500)	0
Mark-to-market expense	0	57
Ending balance	$ 0	$ 1,500

Prepaid Expenses and Other Cu_3

Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses and other current assets	$ 4,346	$ 3,105
Prepaid rent	0	106
Deferred rental income	259	170
Total prepaid expenses and other current assets	$ 4,605	$ 3,381

Property and Equipment, Net (De

Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property and Equipment, Net
Total	$ 5,540	$ 5,485
Less: accumulated depreciation	(3,550)	(2,696)
Total property and equipment, net	1,990	2,789
Depreciation expense related to property and equipment	886	3,087	$ 4,228
Disposal of assets during the period, cost	111	9,528
Disposal of assets during the period, accumulated depreciation	58	9,490
Leasehold improvements
Property and Equipment, Net
Total	3,047	3,009
Computer hardware
Property and Equipment, Net
Total	1,120	1,045
Furniture and fixtures
Property and Equipment, Net
Total	452	539
Computer software
Property and Equipment, Net
Total	830	800
Office equipment
Property and Equipment, Net
Total	$ 91	$ 92

Acquisition - Narrative (Detail

Acquisition - Narrative (Details) $ in Thousands, $ in Thousands	Jun. 08, 2018USD ($)	Aug. 03, 2015USD ($)	Aug. 03, 2015AUD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Acquisition
Contingent consideration on acquisition	$ 1,500			$ 1,500
SlimCut
Acquisition
Payments to acquire business	5,458
Eligible future cash payments based on certain financial milestones (maximum)	1,500
Contingent consideration on acquisition	$ 1,443			1,500
Mark-to-market expense				$ 57
TVN
Acquisition
Payments to acquire business		$ 2,217	$ 3,040
Period following closing date during which additional payments may be required		2 years	2 years
Mark-to-market expense					$ 148
Compensation related expense					$ 1,810

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets, Net - Goodwill (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)segmentreporting_unit	Dec. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Number of operating segments \| segment	1
Number of reportable segments \| segment	1
Number of reporting units \| reporting_unit	1
Changes in the carrying amount of goodwill
Goodwill, beginning balance	$ 9,478	$ 6,320
Acquisition-related goodwill	0	3,424
Foreign exchange impact	(75)	(266)
Goodwill, ending balance	$ 9,403	$ 9,478

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets, Net - Acquisition-related Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Intangible assets, net
Gross Carrying Amount	$ 5,723	$ 5,770
Accumulated Amortization	(2,175)	(1,391)
Net Carrying Amount	3,548	4,379
Customer relationships
Intangible assets, net
Gross Carrying Amount	4,729	4,797
Accumulated Amortization	(1,877)	(1,283)
Net Carrying Amount	2,852	3,514
Patent fixed asset
Intangible assets, net
Gross Carrying Amount	40
Accumulated Amortization	0
Net Carrying Amount	40
Technology
Intangible assets, net
Gross Carrying Amount	954	973
Accumulated Amortization	(298)	(108)
Net Carrying Amount	$ 656	$ 865

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets, Net - Intangible Assets Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 790	$ 619	$ 358
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets decrease in carrying value related to foreign exchange impact		291
Accumulated amortization period increase		508
Offset to accumulated amortization during period related to foreign exchange impact		106
Customer relationships \| SlimCut
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		2,900
Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets decrease in carrying value related to foreign exchange impact		27
Intangible assets accumulated amortization acquired		109
Technology \| SlimCut
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 1,000

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets, Net - Estimated Future Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Estimated future amortization expenses of the acquisition-related intangible assets that are considered to have a definite life
2020	$ 835
2021	658
2022	467
2023	360
2024 and thereafter	1,228
Net Carrying Amount	$ 3,548	$ 4,379

Income Taxes - Loss Before Inco

Income Taxes - Loss Before Income Taxes, Income Tax, Provision, and Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loss from continuing operations before income taxes:
Domestic	$ (10,513)	$ (9,034)	$ (18,147)
Foreign	1,982	(206)	(1,900)
Loss from continuing operations before income taxes	(8,531)	(9,240)	(20,047)
Provision for current income taxes:
U.S. federal	0	10	0
U.S. state and local	(26)	91	(2)
Foreign	556	97	154
Total provision for current income taxes	530	198	152
Benefit for deferred income taxes:
U.S. federal	0	(10)	(332)
U.S. state and local	0	0	0
Foreign	(54)	(198)	(167)
Total benefit for deferred income taxes	(54)	(208)	(499)
Total (benefit) provision for income taxes	$ 476	$ (10)	$ (347)
Reconciliation between the U.S. federal statutory income tax rate to the effective tax rate, by applying such rates to loss before income tax provision
U.S. federal statutory income tax rate (as a percent)	(21.00%)	(21.00%)	(34.00%)
State income tax rate, net of U.S. federal tax benefit (as a percent)	(0.25%)	0.77%	(0.01%)
Stock-based compensation expense (as a percent)	(11.36%)	(6.45%)	0.00%
Acquisition related costs (as a percent)	0.00%	0.00%	3.11%
Mark-to-market expense (as a percent)	0.00%	0.00%	0.25%
Change in income tax rates (as a percent)	2.40%	(6.33%)	(1.03%)
Change in deferred tax asset valuation (as a percent)	31.32%	34.08%	29.03%
Trademark income (as a percent)	0.00%	(1.54%)	0.00%
GILTI (as a percent)	3.55%	0.00%	0.00%
Goodwill impairment charge (as a percent)	0.00%	0.00%	1.46%
AMT credit (as a percent)	0.00%	0.00%	(1.65%)
Meals and Entertainment (as a percent)	0.89%	0.55%	1.10%
Other (as a percent)	0.03%	(0.20%)	0.01%
Effective tax rate (as a percent)	5.58%	(0.12%)	(1.73%)

Income Taxes - Deferred Tax Ass

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Net operating losses and tax credits	$ 29,514	$ 29,322
Stock-based compensation expense	4,028	4,118
Deferred rent	0	1,049
Depreciation and amortization expense	275	1,585
Accrued expenses	831	583
ROU liability	7,656	0
Transaction costs	467	0
Allowance for doubtful accounts	339	283
Unrealized gains and losses	165	51
Total deferred tax assets before valuation allowance	43,275	36,991
Less: valuation allowance	(36,877)	(36,692)
Total deferred tax assets, net of valuation allowance	6,398	299
Deferred tax liabilities:
Intangible assets	(993)	(1,243)
Unrealized gains and losses	(135)	(16)
Depreciation Expense	(90)
ROU asset	(6,126)	0
Total deferred tax liabilities	(7,344)	(1,259)
Total deferred tax liabilities, net	$ (946)	$ (960)

Income Taxes - NOLs (Details)

Income Taxes - NOLs (Details) - USD ($)	12 Months Ended
Income Taxes - NOLs (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net operating loss carry-forwards
Valuation allowance	$ 36,877,000	$ 36,692,000
Interest expense recognized for uncertain tax positions	0	0	$ 0
Penalties recognized for uncertain tax positions	0	$ 0	$ 0
U.S. federal
Net operating loss carry-forwards
Net operating loss carry-forwards	107,982,000
U.S. federal \| Transpera, Inc.
Net operating loss carry-forwards
Net operating loss carry-forwards available to offset future taxable income annually under Section 382	161,000
State
Net operating loss carry-forwards
Net operating loss carry-forwards	74,992,000
Foreign \| Germany
Net operating loss carry-forwards
Net operating loss carry-forwards	6,787,000
Foreign \| United Kingdom
Net operating loss carry-forwards
Net operating loss carry-forwards	5,901,000
Foreign \| Australia
Net operating loss carry-forwards
Net operating loss carry-forwards	$ 98,000

Accounts Payable and Accrued _3

Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Trade accounts payable	$ 152,274	$ 95,028
Accrued compensation, benefits and payroll taxes	5,436	5,468
Accrued cost of revenue	7,152	7,127
Other payables and accrued expenses	3,956	2,368
Total accounts payable and accrued expenses	$ 168,818	$ 109,991

Credit Facility - Narrative (De

Credit Facility - Narrative (Details) - USD ($)	12 Months Ended
Credit Facility - Narrative (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Minimum
Line of Credit Facility [Line Items]
Financial covenant, adjusted EBITDA trailing periods	3 months
Maximum
Line of Credit Facility [Line Items]
Financial covenant, adjusted EBITDA trailing periods	12 months
Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 25,000,000
Borrowing base as a percentage of eligible accounts receivable	80.00%
Fee for unused portion (as a percent)	0.35%
Borrowings amount outstanding	$ 0	$ 0
Standby Letters of Credit
Line of Credit Facility [Line Items]
Letters of credit issued by SVB	$ 3,100,000

Adoption of ASC Topic 842, Le_2

Adoption of ASC Topic 842, Leases - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset, gross	$ 27,834	$ 26,449
Operating lease liabilities	$ 29,533	$ 32,932
Operating leases, weighted average remaining lease term (in years)	6 years 4 months 2 days
Operating leases, weighted average discount rate (percent)	6.82%
Minimum
Lessee, Lease, Description [Line Items]
Incremental borrowing rate used for lease obligations (percent)	4.08%
Maximum
Lessee, Lease, Description [Line Items]
Incremental borrowing rate used for lease obligations (percent)	7.36%

Adoption of ASC Topic 842, Le_3

Adoption of ASC Topic 842, Leases - Right-of-Use Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use asset, gross	$ 27,834	$ 26,449
Addition of right-of-use assets	1,385
Less: accumulated amortization	(4,041)
Operating lease right-of-use asset, net	$ 23,793		$ 0

Adoption of ASC Topic 842, Le_4

Adoption of ASC Topic 842, Leases - Lease Cost and Sublease Income (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)
Lease Cost and Sublease Income
Operating lease cost	$ 6,116
Variable lease cost	762
Short-term lease cost	345
Sublease income, gross	(4,330)
Total lease cost	$ 2,893

Adoption of ASC Topic 842, Le_5

Adoption of ASC Topic 842, Leases - Future Payments Under Operating Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Future Payments Under Operating Leases
2020	$ 7,293
2021	6,084
2022	5,119
2023	5,092
2024	5,124
Thereafter	8,073
Subtotal	36,785
Less: imputed interest	(7,252)
Present value of minimum lease payments	29,533	$ 32,932
Less: current portion of operating lease obligations	(5,487)		$ 0
Total long-term lease obligations	$ 24,046		$ 0

Commitments and Contingencies (

Commitments and Contingencies (Details)	1 Months Ended
Commitments and Contingencies (Details)	Feb. 28, 2020numberOfLawsuits	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Other Commitments [Line Items]
Reserves recorded		$ 0	$ 0
Subsequent Event
Other Commitments [Line Items]
Loss Contingency, Number Of Lawsuits \| numberOfLawsuits	7
Loss Contingency, Number Of Lawsuits, Putative Class Action \| numberOfLawsuits	2
Loss Contingency, Number Of Lawsuits, Individual \| numberOfLawsuits	5
Former Headquarters New York, NY 1
Other Commitments [Line Items]
Outstanding letters of credit		300,000	300,000
Office Space Mountain View, CA
Other Commitments [Line Items]
Outstanding letters of credit		320,000	320,000
Former Headquarters New York, NY 2
Other Commitments [Line Items]
Outstanding letters of credit		1,814,000	$ 2,332,000
Current Headquarters New York, NY
Other Commitments [Line Items]
Outstanding letters of credit		$ 633,000

Stockholders' Equity - Stock Re

Stockholders' Equity - Stock Repurchases (Details) - USD ($)	Oct. 02, 2018	Dec. 31, 2018	Dec. 31, 2018
Stock Repurchases
Repurchase amount			$ 23,537,000
2018 Repurchase Program
Stock Repurchases
Amount authorized	$ 20,000,000
Repurchase program, period	18 months
Number of shares repurchased (shares)		7,318,172
Repurchase amount		$ 20,000,000
Outside of repurchase program
Stock Repurchases
Number of shares repurchased (shares)		1,400,572
Repurchase amount		$ 3,536,000

Changes in Accumulated Other _3

Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Changes in accumulated other comprehensive (loss) income
Beginning balance	$ 54,395,000	$ 83,139,000
Other comprehensive loss	(238,000)	(717,000)
Ending balance	56,777,000	54,395,000
Reclassifications from accumulated other comprehensive (loss) income	0	0
Accumulated Other Comprehensive Income (Loss)
Changes in accumulated other comprehensive (loss) income
Beginning balance	(949,000)	(232,000)
Ending balance	$ (1,187,000)	$ (949,000)

Stock-Based Compensation - Oper

Stock-Based Compensation - Operating Expense Categories (Details) - USD ($) $ in Thousands	Sep. 20, 2017	Aug. 31, 2017	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation Expense
Stock-based compensation expense				$ 5,759	$ 3,820	$ 5,394
Incremental share-based compensation expense related to modification	$ 729	$ 45	$ 383
Percentage of unvested shares with accelerated vesting due to modification	100.00%
Continuing Operations
Stock-Based Compensation Expense
Stock-based compensation expense				5,759	3,820	4,721
Continuing Operations \| Technology and development
Stock-Based Compensation Expense
Stock-based compensation expense				818	492	615
Continuing Operations \| Sales and marketing
Stock-Based Compensation Expense
Stock-based compensation expense				2,196	1,470	2,062
Continuing Operations \| General and administrative
Stock-Based Compensation Expense
Stock-based compensation expense				2,745	1,858	2,044
Discontinued Operations
Stock-Based Compensation Expense
Stock-based compensation expense				$ 0	$ 0	$ 673

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Incentive Plans (Details)	Jun. 26, 2013shares	Dec. 31, 2019numberOfPlans
Stock-Based Incentive Plans
Number of stock-based incentive plans		5
ScanScout
Stock-Based Incentive Plans
Number of stock-based incentive plans assumed as part of acquisition		2
2013 Plan
Stock-Based Incentive Plans
Common stock initial reserve (shares) \| shares	1,333,333
Period for automatic increase in reserve (years)	10 years
Term of equity incentive plan (years)	10 years
2013 Plan \| Maximum
Stock-Based Incentive Plans
Percent of common stock shares by which the reserve automatically increases (percent)	4.00%
Stock option awards \| 2013 Plan \| Maximum
Stock-Based Incentive Plans
Expiration period of options (years)	10 years

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock Option Awards Outstanding By Exercise Price (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Options Outstanding
Options Outstanding (shares) \| shares	5,327,756
Weighted Average Remaining Contractual Life (Years)	3 years 11 months 15 days
Weighted Average Exercise Price Per Share (usd per share)	$ 3.70
Options Exercisable
Options Exercisable (shares) \| shares	3,593,624
Weighted Average Remaining Contractual Life (Years)	2 years 8 months 26 days
Weighted Average Exercise Price Per Share (usd per share)	$ 4
$1.11 - $1.94
Stock option awards
Range of Exercise Prices, low end (usd per share)	1.11
Range of Exercise Prices, high end (usd per share)	$ 1.94
Options Outstanding
Options Outstanding (shares) \| shares	658,915
Weighted Average Remaining Contractual Life (Years)	2 years 3 months
Weighted Average Exercise Price Per Share (usd per share)	$ 1.86
Options Exercisable
Options Exercisable (shares) \| shares	635,477
Weighted Average Remaining Contractual Life (Years)	2 years 6 months 18 days
Weighted Average Exercise Price Per Share (usd per share)	$ 1.85
$2.00 - $2.88
Stock option awards
Range of Exercise Prices, low end (usd per share)	2
Range of Exercise Prices, high end (usd per share)	$ 2.88
Options Outstanding
Options Outstanding (shares) \| shares	1,305,000
Weighted Average Remaining Contractual Life (Years)	5 years 11 months 1 day
Weighted Average Exercise Price Per Share (usd per share)	$ 2.40
Options Exercisable
Options Exercisable (shares) \| shares	894,269
Weighted Average Remaining Contractual Life (Years)	4 years 9 months 14 days
Weighted Average Exercise Price Per Share (usd per share)	$ 2.45
$3.60 - $4.83
Stock option awards
Range of Exercise Prices, low end (usd per share)	3.60
Range of Exercise Prices, high end (usd per share)	$ 4.83
Options Outstanding
Options Outstanding (shares) \| shares	1,921,869
Weighted Average Remaining Contractual Life (Years)	4 years 10 days
Weighted Average Exercise Price Per Share (usd per share)	$ 4.22
Options Exercisable
Options Exercisable (shares) \| shares	1,463,677
Weighted Average Remaining Contractual Life (Years)	2 years 7 months 9 days
Weighted Average Exercise Price Per Share (usd per share)	$ 4.18
$5.01 - $5.90
Stock option awards
Range of Exercise Prices, low end (usd per share)	5.01
Range of Exercise Prices, high end (usd per share)	$ 5.90
Options Outstanding
Options Outstanding (shares) \| shares	1,019,324
Weighted Average Remaining Contractual Life (Years)	2 years 9 months
Weighted Average Exercise Price Per Share (usd per share)	$ 5.56
Options Exercisable
Options Exercisable (shares) \| shares	437,037
Weighted Average Remaining Contractual Life (Years)	8 months 15 days
Weighted Average Exercise Price Per Share (usd per share)	$ 5.57
$6.75 - $8.37
Stock option awards
Range of Exercise Prices, low end (usd per share)	6.75
Range of Exercise Prices, high end (usd per share)	$ 8.37
Options Outstanding
Options Outstanding (shares) \| shares	422,648
Weighted Average Remaining Contractual Life (Years)	4 years 9 months 29 days
Weighted Average Exercise Price Per Share (usd per share)	$ 8.17
Options Exercisable
Options Exercisable (shares) \| shares	163,164
Weighted Average Remaining Contractual Life (Years)	3 years 10 days
Weighted Average Exercise Price Per Share (usd per share)	$ 7.59

Stock-Based Compensation - St_3

Stock-Based Compensation - Stock Option Awards Outstanding Rollforward (Details)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Number of Stock Option Awards Outstanding
Stock option awards outstanding, beginning balance (shares) \| shares	6,348,251
Stock option awards granted (shares) \| shares	884,479
Stock option awards forfeited (shares) \| shares	(215,813)
Stock option awards exercised (shares) \| shares	(1,689,161)
Stock option awards outstanding, ending balance (shares) \| shares	5,327,756
Stock option awards vested and exercisable (shares) \| shares	3,593,624
Weighted Average Exercise Price Per Share
Stock option awards outstanding, beginning balance (usd per share) \| $ / shares	$ 3.73
Stock option awards granted (usd per share) \| $ / shares	6.06
Stock option awards forfeited (usd per share) \| $ / shares	4.33
Stock option awards exercised (usd per share) \| $ / shares	4.05
Stock option awards outstanding, ending balance (usd per share) \| $ / shares	4
Stock option awards vested and exercisable (usd per share) \| $ / shares	$ 4
Stock option awards outside of equity compensation plan
Stock-Based Compensation
Cliff period	1 year
Stock option awards outside of equity compensation plan \| Maximum
Stock-Based Compensation
Vesting period (years)	4 years
Expiration period (years)	10 years

Stock-Based Compensation - Othe

Stock-Based Compensation - Other Selected Information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation
Aggregate fair value of stock option awards vested	$ 1,183	$ 374	$ 644
Aggregate intrinsic value of outstanding stock option awards	954	1,270	5,503
Aggregate intrinsic value of stock option awards exercised	$ 5,533	$ 1,713	$ 748
Weighted-average grant-date fair value per share of stock option awards granted (usd per share)	$ 3.21	$ 1.91	$ 1.13
Cash proceeds received from stock option awards exercised	$ 6,749	$ 1,845	$ 699
Stock option awards
Stock-Based Compensation
Unrecognized compensation cost related to non-vested stock option awards	$ 3,390
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 7 months 17 days

Stock-Based Compensation - Assu

Stock-Based Compensation - Assumptions for Stock Option Awards (Details) - Stock option awards	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation assumptions
Volatility, minimum (percent)	57.00%	49.00%	49.00%
Volatility, maximum (percent)	57.00%	55.00%	50.00%
Risk-free interest rate, minimum (percent)	1.68%	2.37%	1.85%
Risk-free interest rate, maximum (percent)	2.55%	3.01%	2.02%
Dividend yield (percent)	0.00%	0.00%	0.00%
Minimum
Valuation assumptions
Expected life (in years)	5 years 5 months 12 days	5 years 3 months 25 days	5 years 7 months 24 days
Maximum
Valuation assumptions
Expected life (in years)	5 years 6 months 14 days	5 years 6 months 29 days	5 years 8 months 1 day

Stock-Based Compensation - Non-

Stock-Based Compensation - Non-vested Restricted Stock Unit Awards (Details) - Restricted stock unit awards - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Unit (RSU) Awards Outstanding
Aggregate grant date fair value of restricted stock unit awards outstanding	$ 11,398	$ 7,050	$ 5,515
Unrecognized compensation cost related to non-vested restricted stock unit awards	$ 5,891
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 5 months 26 days
Number of Restricted Stock Awards Outstanding
Non-vested restricted stock unit awards outstanding, beginning balance (shares)	2,350,054
Restricted stock unit awards granted (shares)	1,364,236
Restricted stock unit awards forfeited (shares)	(265,681)
Restricted stock unit awards vested (shares)	(973,568)
Non-vested restricted stock unit awards outstanding, ending balance (shares)	2,475,041	2,350,054
Weighted Average Grant Date Fair Value Per Share
Non-vested restricted stock unit awards outstanding, beginning of year (usd per shares)	$ 3
Restricted stock unit awards granted (usd per shares)	6.10
Restricted stock unit awards forfeited (usd per shares)	4.32
Restricted stock unit awards vested (usd per shares)	2.91
Non-vested restricted stock unit awards outstanding, end of year (usd per shares)	$ 4.61	$ 3
Maximum
Restricted Stock Unit (RSU) Awards Outstanding
Vesting period (years)	4 years

Stock-Based Compensation - Empl

Stock-Based Compensation - Employee Stock Purchase Plan (Details) - 2014 ESPP - $ / shares	Apr. 22, 2014	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation
Length of purchase intervals under ESPP plan	6 months
Percentage of purchase price per share (percent)	85.00%
Maximum percentage of base salary allowable for employee share purchases (percent)	15.00%
Maximum number of common stock permitted to be purchased by employees on any one purchase date under ESPP	5,000
Maximum fair value of shares permitted to be purchased under ESPP (usd per share)	$ 25,000
Shares of common stock reserved for future issuance (shares)		685,720
Valuation assumptions
Volatility, minimum (percent)		60.00%	36.00%	42.00%
Volatility, maximum (percent)		93.00%	42.00%	52.00%
Risk-free interest rate, minimum (percent)		1.37%	1.13%	0.70%
Risk-free interest rate, maximum (percent)		2.86%	2.28%	1.10%
Expected life (in years)		6 months	6 months	6 months
Dividend yield (percent)		0.00%	0.00%	0.00%
Maximum
Stock-Based Compensation
Shares of common stock reserved for future issuance (shares)	2,000,000

Stock-Based Compensation - St_4

Stock-Based Compensation - Stock-Option Compensation Award with Market Conditions (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 10, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation
Stock option awards granted (shares)		884,479
Stock based compensation expense		$ 5,759	$ 3,820	$ 5,394
Performance options award \| Chief Executive Officer
Stock-Based Compensation
Stock option awards granted (shares)	450,000
Fair value of stock options granted	$ 501
Stock based compensation expense		$ 37
Performance options award \| Vest on average thirty day share price of $4 per share
Stock-Based Compensation
Award vesting rights (percent)	50.00%
Market conditions, average number of days for share price target	30 days
Market conditions, target average thirty day share price (usd per share)	$ 4
Vesting period (years)	1 year 3 months 7 days
Performance options award \| Vest on average thirty day share price of $5 per share
Stock-Based Compensation
Award vesting rights (percent)	50.00%
Market conditions, average number of days for share price target	30 days
Market conditions, target average thirty day share price (usd per share)	$ 5
Vesting period (years)	1 year 9 months

Stock-Based Compensation - St_5

Stock-Based Compensation - Stock-Option Compensation Award with Market Conditions Valuation Assumptions (Details) - Performance options award	12 Months Ended
	Dec. 31, 2019$ / shares
Valuation assumptions
Exercise price (usd per share)	$ 2.36
Volatility (percent)	50.00%
Risk-free interest rate (percent)	2.38%
Maturity (in years)	10 years
Milestone 1 (usd per share)	$ 4
Milestone 2 (usd per share)	$ 5
Cost of equity (percent)	17.00%
Dividend yield (percent)	0.00%

Restructuring Costs - Narrative

Restructuring Costs - Narrative (Details) - USD ($)	1 Months Ended		12 Months Ended
Restructuring Costs - Narrative (Details) - USD ($)	Jul. 31, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs			$ 0	$ 149,000	$ 0
Contract Termination \| Office Relocation Plan
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 32,000	$ 117,000	$ 149,000

Net Income (Loss) Per Share A_3

Net Income (Loss) Per Share Attributable to Common Stockholders - Calculation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator:
Income (loss) from continuing operations, net of income taxes	$ (389)	$ (2,801)	$ (1,484)	$ (4,333)	$ 1,438	$ (1,581)	$ (2,960)	$ (6,127)	$ (9,007)	$ (9,230)	$ (19,700)
Total income (loss) from discontinued operations, net of income taxes					(1)	0	(161)	26	0	(136)	21,927
Net income (loss)	$ (389)	$ (2,801)	$ (1,484)	$ (4,333)	$ 1,437	$ (1,581)	$ (3,121)	$ (6,101)	$ (9,007)	$ (9,366)	$ 2,227
Denominator:
Weighted-average number of shares of common stock outstanding for basic and diluted net loss per share attributable to common stockholders	46,710,402	46,158,465	45,702,810	44,831,453					45,864,500	51,764,506	50,511,366
Basic and diluted net income (loss) per share:
Loss from continuing operations (usd per share)	$ (0.01)	$ (0.06)	$ (0.03)	$ (0.10)					$ (0.20)	$ (0.18)	$ (0.39)
Income from discontinued operations (usd per share)									0	0	0.43
Net income (loss) (usd per share)	$ (0.01)	$ (0.06)	$ (0.03)	$ (0.10)					$ (0.20)	$ (0.18)	$ 0.04

Net Income (Loss) Per Share A_4

Net Income (Loss) Per Share Attributable to Common Stockholders - Antidilutive Securities (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Securities excluded from the calculation of weighted average common shares outstanding
Total anti-dilutive securities outstanding (shares)	7,802,172	8,697,680	8,829,434
Stock option awards
Securities excluded from the calculation of weighted average common shares outstanding
Total anti-dilutive securities outstanding (shares)	5,327,756	6,348,251	6,311,059
Restricted stock unit awards
Securities excluded from the calculation of weighted average common shares outstanding
Total anti-dilutive securities outstanding (shares)	2,474,416	2,349,429	2,518,375

Employee Benefit Plan - Narrati

Employee Benefit Plan - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employee benefit plan
Employer match of each participant's eligible contributions (percent)	50.00%
Vesting period	3 years
Total employer matching contributions to the Plan	$ 417	$ 333	$ 250
Maximum
Employee benefit plan
Employer matching contribution as a percentage of each participant's eligible base salary (percent)	3.00%

Supplemental Disclosure of Ca_3

Supplemental Disclosure of Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental disclosure of cash flow activities:
Cash paid for income taxes	$ 55	$ 93	$ 416
Cash paid for operating leases subject to ASU 842	6,866
Cash paid for interest expense	0	0	101
Supplemental disclosure of non-cash investing and financing activities:
Common stock issued for settlement of restricted stock unit awards	1,391	1,312	3,206
Purchase of property and equipment in accounts payable and accrued expenses	116	6	13
Cash holdback related to acquisition	0	472	0
Deferred tax liability related to acquisition	0	1,015	0
Contingent consideration on acquisition	$ 0	$ 1,500	$ 0

Segment and Geographic Inform_2

Segment and Geographic Information - Narrative (Details)	12 Months Ended
Segment and Geographic Information - Narrative (Details)	Dec. 31, 2019segment
Segment Reporting [Abstract]
Number of operating segments	1
Number of reportable segments	1

Quarterly Results of Operatio_3

Quarterly Results of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 19,636	$ 16,564	$ 18,216	$ 13,622	$ 19,656	$ 13,478	$ 12,430	$ 9,601	$ 68,038	$ 55,165	$ 43,799
Gross profit	15,349	13,145	14,748	11,171	16,844	11,610	11,294	8,573	54,413	48,321	40,351
Income (loss) from continuing operations, net of income taxes	(389)	(2,801)	(1,484)	(4,333)	1,438	(1,581)	(2,960)	(6,127)	(9,007)	(9,230)	(19,700)
Total income (loss) from discontinued operations, net of income taxes					(1)	0	(161)	26	0	(136)	21,927
Net income (loss)	$ (389)	$ (2,801)	$ (1,484)	$ (4,333)	$ 1,437	$ (1,581)	$ (3,121)	$ (6,101)	$ (9,007)	$ (9,366)	$ 2,227
Net income (loss) per share - basic and diluted
Loss from continuing operations, net of income taxes (usd per share)	$ (0.01)	$ (0.06)	$ (0.03)	$ (0.10)					$ (0.20)	$ (0.18)	$ (0.39)
Income from discontinued operations, net of income taxes (usd per share)									0	0	0.43
Net income (loss) (usd per share)	$ (0.01)	$ (0.06)	$ (0.03)	$ (0.10)					$ (0.20)	$ (0.18)	$ 0.04
Net earnings (loss) per share - basic
Loss from continuing operations, net of income taxes (usd per share)					$ 0.03	$ (0.03)	$ (0.06)	$ (0.12)
Income (loss) from discontinued operations, net of income taxes (usd per share)					0	0	0	0
Net income (loss) (usd per share)					0.03	(0.03)	(0.06)	(0.12)
Net earnings (loss) per share - diluted
Income (loss) from continuing operations, net of income taxes (usd per share)					0.03	(0.03)	(0.06)	(0.12)
Income from discontinued operations, net of income taxes (usd per share)					0	0	0	0
Net income (loss) (usd per share)					$ 0.03	$ (0.03)	$ (0.06)	$ (0.12)
Weighted-average number of shares of common stock outstanding:
Weighted-average number of shares of common stock outstanding - basic (shares)					50,278,668	52,716,626	52,241,605	51,827,685
Weighted-average number of shares of common stock outstanding - diluted (shares)					51,266,321	52,716,626	52,241,605	51,827,685
Basic and diluted weighted-average number of shares outstanding (shares)	46,710,402	46,158,465	45,702,810	44,831,453					45,864,500	51,764,506	50,511,366

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event	Feb. 11, 2020
Subsequent Event [Line Items]
Estimated ownership of combined company by Telaria pre-merger shareholders (percent)	47.60%
Estimated ownership of combined company by Rubicon Project pre-merger shareholders (percent)	52.40%