Telaria (TLRA) 10-Q 14 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Nov. 11, 2014
Document and Entity Information	'	'
Entity Registrant Name	'TREMOR VIDEO INC.	'
Entity Central Index Key	'0001375796	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Non-accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	51,080,730
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$77,909	$92,691
Accounts receivable, net of allowance for doubtful accounts of $871 and $959 as of September 30, 2014 and December 31, 2013, respectively	46,519	41,458
Prepaid expenses and other current assets	1,614	1,912
Total current assets	126,042	136,061
Long-term assets:	'	'
Restricted cash	600	600
Property and equipment, net of accumulated depreciation of $4,467 and $3,618 as of September 30, 2014 and December 31, 2013, respectively	4,730	3,388
Intangible assets, net of accumulated amortization of $18,940 and $15,313 as of September 30, 2014 and December 31, 2013, respectively	16,760	20,387
Goodwill	29,719	29,719
Deferred tax assets	189	189
Other assets	249	216
Total long-term assets	52,247	54,499
Total assets	178,289	190,560
Current liabilities:	'	'
Accounts payable and accrued expenses	33,157	32,312
Deferred rent and security deposits payable, short-term	'	14
Deferred revenue	314	271
Deferred tax liabilities, short-term	189	189
Total current liabilities	33,660	32,786
Deferred rent, long-term	763	742
Total liabilities	34,423	33,528
Commitments and contingencies	'	'
Stockholders' equity:	'	'
Common stock, $0.0001 par value: 250,000,000 shares authorized as of September 30, 2014 and December 31, 2013, respectively; 51,077,731 and 49,998,274 shares issued and outstanding as of September 30, 2014 and December 31, 2013, respectively	5	5
Additional paid-in capital	272,734	267,767
Accumulated other comprehensive income	137	195
Accumulated deficit	-129,010	-110,935
Total stockholders' equity	143,866	157,032
Total liabilities and stockholders' equity	$178,289	$190,560

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Consolidated Balance Sheets	'	'
Accounts receivable, allowance for doubtful accounts	$871	$959
Property and equipment, accumulated depreciation	4,467	3,618
Intangible assets, accumulated amortization	$18,940	$15,313
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	51,077,731	49,998,274
Common stock, shares outstanding	51,077,731	49,998,274

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Operations	'	'	'	'
Revenue	$39,039	$35,267	$117,609	$95,497
Cost of revenue	24,046	21,057	75,882	53,869
Gross profit	14,993	14,210	41,727	41,628
Operating expenses:	'	'	'	'
Technology and development	4,270	2,833	12,583	8,348
Sales and marketing	10,761	9,477	31,118	28,263
General and administrative	3,724	2,681	11,037	8,069
Depreciation and amortization	1,673	1,581	4,902	4,576
Total operating expenses	20,428	16,572	59,640	49,256
Loss from operations	-5,435	-2,362	-17,913	-7,628
Interest and other income (expense), net:	'	'	'	'
Interest expense, net	-3	-14	-3	-127
Other income (expense), net	8	153	-15	323
Total interest and other income (expense), net	5	139	-18	196
Loss before income taxes	-5,430	-2,223	-17,931	-7,432
Income tax expense	44	20	144	243
Net loss	-5,474	-2,243	-18,075	-7,675
Series F preferred stock deemed dividend	'	15,849	'	15,849
Net loss attributable to common stockholders	($5,474)	($18,092)	($18,075)	($23,524)
Net loss attributable to common stockholders per share	'	'	'	'
Basic and diluted (in dollars per share)	($0.11)	($0.37)	($0.36)	($1.08)
Weighted-average number of shares of common stock outstanding:	'	'	'	'
Basic and diluted (in shares)	50,751,303	49,115,766	50,485,734	21,686,759

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Loss (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Comprehensive Loss	'	'	'	'
Net loss	($5,474)	($2,243)	($18,075)	($7,675)
Series F preferred stock deemed dividend	'	15,849	'	15,849
Net loss attributable to common stockholders	-5,474	-18,092	-18,075	-23,524
Other comprehensive (loss) gain:	'	'	'	'
Foreign currency translation adjustments	-63	50	-58	-100
Comprehensive loss attributable to common stockholders	($5,537)	($18,042)	($18,133)	($23,624)

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Stockholders' Equity (USD $)	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Total
In Thousands, except Share data, unless otherwise specified
Balance at Dec. 31, 2013	$5	$267,767	$195	($110,935)	$157,032
Balance (in shares) at Dec. 31, 2013	49,998,274	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'
Exercise of stock options	'	727	'	'	727
Exercise of stock options (in shares)	745,807	'	'	'	745,807
Stock-based compensation expense	'	3,288	'	'	3,288
Common stock issued for settlement of restricted stock units (RSUs), net of 173,169 shares withheld to satisfy income tax withholding obligations (in shares)	'	952	'	'	952
Common stock issued for settlement of restricted stock units (RSUs), net of 173,169 shares withheld to satisfy income tax withholding obligations (in shares)	333,650	'	'	'	'
Net loss	'	'	'	-18,075	-18,075
Foreign currency translation adjustments	'	'	-58	'	-58
Balance at Sep. 30, 2014	$5	$272,734	$137	($129,010)	$143,866
Balance (in shares) at Sep. 30, 2014	51,077,731	'	'	'	'

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical)	9 Months Ended
	Sep. 30, 2014
Consolidated Statements of Mandatorily Redeemable Convertible Preferred Stock and Changes in Stockholders' Equity (Deficit)	'
Common stock withheld to satisfy income tax withholding obligations relating to RSUs (in shares)	173,169

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net loss	($18,075)	($7,675)
Adjustments required to reconcile net loss to net cash (used in) provided by operating activities	'	'
Depreciation of property and equipment	1,275	919
Amortization of intangible assets	3,627	3,657
Bad debt recovery	-36	-26
Mark-to-market income	'	-313
Contingent stock grant to third party vendor	24	'
Stock-based compensation expense	3,294	2,419
Stock-based long-term incentive compensation, net of forfeitures	274	'
Net changes in operating assets and liabilities:	'	'
Increase in accounts receivable	-5,061	-3,376
Decrease (increase) in prepaid expenses and other long-term assets	292	-835
Increase in accounts payable and accrued expenses	2,039	8,998
Increase in deferred rent and security deposits payable	7	119
Increase (decrease) in deferred revenue	43	-16
Net cash (used in) provided by operating activities	-12,297	3,871
Cash flows from investing activities:	'	'
Purchase of property and equipment	-2,617	-1,757
Changes in restricted cash	'	621
Net cash used in investing activities	-2,617	-1,136
Cash flows from financing activities:	'	'
Net proceeds from common stock issuance	'	66,598
Repayment of amount outstanding under credit facility	'	-6,000
Proceeds from the exercise of stock options	727	492
Tax withholdings related to net share settlements of restricted stock units (RSUs)	-565	'
Net cash provided by financing activities	162	61,090
Net (decrease) increase in cash and cash equivalents	-14,752	63,825
Effect of exchange rate changes in cash and cash equivalents	-30	-100
Cash and cash equivalents at beginning of period	92,691	32,533
Cash and cash equivalents at end of period	77,909	96,258
Supplemental disclosure of cash flow activities:	'	'
Cash paid for income taxes	'	147
Cash paid for interest expense	3	127
Supplemental disclosure of non-cash financing activities:	'	'
Common stock issued in connection with the conversion of preferred stock	'	162,657
Common stock issued in connection with the Series F preferred stock deemed dividend	'	15,849
Reclassification of liability warrants to equity warrants	'	790
Common stock issued for settlement of RSUs	$952	'

Organization_and_Description_o

Organization and Description of Business	9 Months Ended
	Sep. 30, 2014
Organization and Description of Business	'
Organization and Description of Business	'
	1. Organization and Description of Business
	Tremor Video, Inc. (the “Company”) was originally organized as Tremor Media, LLC in November 2005 and converted into a corporation named ‘‘Tremor Media, Inc.’’ under the laws of the State of Delaware in September 2006. The Company changed its name to Tremor Video, Inc. in June 2011. The Company is an advertising technology company elevating brand performance across all screens for the world’s leading brands and publishers.  The Company offers brand advertisers and publishers a complete programmatic solution to reach and engage consumers while providing new insights into what drives the success of brand advertising performance across multiple screens, including computers, smartphones, tablets and connected TVs.  Through its Tremor Video Network, the Company offers advertisers access to premium and often exclusive streaming video inventory and advanced real-time optimization capabilities at scale across multiple internet-connected devices in brand safe environments.  In addition, through its licensed analytics solution, the Company provides advanced video analytic capabilities for advertisers and publishers, to measure, verify and evaluate the performance of video ad campaigns across multiple channels, both within and outside of its Tremor Video Network.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Summary of Significant Accounting Policies	'
Summary of Significant Accounting Policies	'
	2.  Summary of Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited interim consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commissions (the “SEC”) regarding unaudited interim financial information.  In the opinion of management, the accompanying unaudited interim consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Company’s consolidated balance sheets, statements of operations, comprehensive loss and cash flows for the interim periods presented.  Operating results for the interim periods presented are not necessarily indicative of the results of operations to be expected for the full year or the results for any future periods due to seasonal and other factors.  Certain information and footnote disclosures normally included in the consolidated financial statements in accordance with U.S. GAAP have been omitted in accordance with the rules and regulations of the SEC.  Accordingly, these unaudited interim consolidated financial statements and footnotes should be read in conjunction with the consolidated financial statements and accompanying notes thereto included in the Company’s Form 10-K for the year ended December 31, 2013 filed with the SEC on March 28, 2014.
	Principles of Consolidation
	The unaudited interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries.  All significant inter-company balances and transactions have been eliminated in the accompanying unaudited interim consolidated financial statements.
	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 by performing ongoing credit evaluations and monitoring its customers’ accounts receivable balances. For new customers 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 collection is reasonably assured.
	During the three and nine months ended September 30, 2014, there were no advertisers that accounted for more than 10% of revenue.  During the three and nine months ended September 30, 2013, there was one advertiser that accounted for approximately 10.5% and 10.7% of revenue, respectively.
	As of September 30, 2014 and December 31, 2013, there were no advertisers that accounted for more than 10% of outstanding accounts receivable.
	Recently Issued Accounting Pronouncements
	FASB Accounting Standards Update No. 2014-09 — Revenue from Contracts with Customers
	In May 2014, the Financial Accounting Standards Board (the “FASB”) issued an accounting standards update that provides a comprehensive model for recognizing revenue with customers.  This update clarifies and replaces all existing revenue recognition guidance within U.S. GAAP.  This update is effective for annual and interim periods beginning after December 15, 2016, with no early adoption permitted.  The Company is currently evaluating the adoption method to apply and the impact that the update will have on its consolidated financial statements and related disclosures.
	FASB Accounting Standards Update No. 2013-11 — Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists
	In July 2013, the FASB issued new accounting guidance on the presentation of unrecognized tax benefits. This new guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset when a net operating loss carryforward, a similar tax loss or a tax credit carryforward exists, with limited exceptions. This new guidance is effective for annual and interim periods beginning after December 15, 2013.  The Company adopted this guidance in the first quarter of 2014.  The adoption of this new accounting guidance did not have a material impact on the Company’s consolidated financial statements and related disclosures.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Fair Value Measurements	'
	3.  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
	The Company evaluates its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level to classify them for each reporting period.  This determination requires significant judgments to be made.  The following table summarizes the conclusions reached as of September 30, 2014 and December 31, 2013:
			September 30, 2014								December 31, 2013
			(unaudited)
			Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market funds(1)		$	65,562	$	—	$	—	$	65,562	$	89,042	$	—	$	—	$	89,042
			$	65,562	$	—	$	—	$	65,562	$	89,042	$	—	$	—	$	89,042
		-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 approximates its fair value.  Amounts above do not include $12,347 and $3,649 of operating cash balances as of September 30, 2014 and December 31, 2013, respectively.

Property_and_Equipment_Net

Property and Equipment, Net	9 Months Ended
	Sep. 30, 2014
Property and Equipment, Net	'
Property and Equipment, Net	'
	4.  Property and Equipment, Net
		September 30,			December 31,
		2014			2013
		(unaudited)
	Cost:
	Computer hardware	$	5,505		$	3,908
	Leasehold improvements	1,516			1,422
	Furniture and fixtures	1,119			1,090
	Computer software	881			482
	Office equipment	176			104
		9,197			7,006
	Accumulated depreciation	(4,467		)	(3,618		)
	Total property and equipment, net of accumulated depreciation	$	4,730		$	3,388
	The depreciation expense related to property and equipment was $464 and $362 for the three months ended September 30, 2014 and 2013, respectively, and $1,275 and $919 for the nine months ended September 30, 2014 and 2013, respectively.
	The Company recorded a reduction of $426 and $654 to the cost and accumulated depreciation of fully depreciated equipment and leasehold improvements no longer in use for the nine months ended September 30, 2014 and 2013, respectively.

Accounts_Payable_and_Accrued_E

Accounts Payable and Accrued Expenses	9 Months Ended
	Sep. 30, 2014
Accounts Payable and Accrued Expenses	'
Accounts Payable and Accrued Expenses	'
	5.  Accounts Payable and Accrued Expenses
	Accounts payable and accrued expenses consisted of:
			September 30,		December 31,
			2014		2013
			(unaudited)
	Trade accounts payable		$	24,991	$	24,121
	Accrued compensation, benefits and payroll taxes(1)		5,243		5,612
	Accrued cost of sales		1,416		1,267
	Other payables and accrued expenses		1,507		1,312
	Total accounts payable and accrued expenses		$	33,157	$	32,312
		-1		At September 30, 2014 and December 31, 2013, accrued compensation, benefits and payroll taxes includes $367 and $1,614 of stock-based long-term incentive compensation expense, respectively, related to the Company’s long-term sales incentive compensation plan.  Payments earned under the long-term sales incentive compensation plan for the 2013 plan year were paid in stock-based awards in August 2014.  The Company issued an aggregate total of 293,650 shares to employees under its 2013 Plan on account of such payments, net of 173,169 shares withheld to satisfy income tax withholding obligations in the amount of $565, which were remitted to tax authorities.  Payments earned under the plan for the 2014 plan year will be made in stock-based awards to participants that remain employed with the Company through June 30, 2015, which will be paid in August 2015.

Changes_in_Accumulated_Other_C

Changes in Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2014
Changes in Accumulated Other Comprehensive Income	'
Changes in Accumulated Other Comprehensive Income	'
	6.  Changes in Accumulated Other Comprehensive Income
	The following tables provide the components of accumulated other comprehensive income:
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at July 1, 2014	$	200
	Other comprehensive loss before reclassifications	(63		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2014	$	137
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at July 1, 2013	$	195
	Other comprehensive gain before reclassifications	50
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2013	$	245
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at January 1, 2014	$	195
	Other comprehensive loss before reclassifications	(58		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2014	$	137
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at January 1, 2013	$	345
	Other comprehensive loss before reclassifications	(100		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2013	$	245

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2014
Stock-Based Compensation	'
Stock-Based Compensation Expense	'
	7.  Stock-Based Compensation
	The Company included stock-based compensation expense related to all of its stock-based awards in various operating expense categories for the three months ended September 30, 2014 and 2013 and for the nine months ended September 30, 2014 and 2013 as follows:
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014			2013		2014		2013
		(unaudited)
	Technology and development	$	239		$	142	$	653	$	391
	Sales and marketing	342			317		1,063		883
	General and administrative	607			459		1,578		1,145
	Total stock-based compensation expense	$	1,188		$	918	$	3,294	$	2,419
	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 September 30, 2014 and December 31, 2013, including, in each case, two plans that were assumed as part of the acquisition of ScanScout, Inc.  The Company has restricted stock unit awards outstanding under its 2013 Plan.
	Stock Option Awards Outstanding
	The following table presents a summary of the Company’s stock option award activity under all plans and related information for the nine months ended September 30, 2014:
		Number of		Weighted-Average
		Stock Option
		Awards		Exercise Price
		Outstanding		Per Share
	Stock option awards outstanding as of December 31, 2013	7,302,761		$	3.96
	Stock option awards granted	1,006,094		$	3.88
	Stock option awards forfeited	(614,013	)	$	5.27
	Stock option awards exercised	(745,807	)	$	0.97
	Stock option awards outstanding as of September 30, 2014	6,949,035		$	4.16
	Stock option awards vested and exercisable as of September 30, 2014	4,446,692		$	3.66
	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.  The weighted-average grant date fair value of stock option awards granted during the nine months ended September 30, 2014 was $1.84 per share.  The total intrinsic value of stock option awards exercised during the nine months ended September 30, 2014 and 2013 was $2,378 and $993, respectively.  Cash proceeds received from stock option awards exercised for the nine months ended September 30, 2014 and 2013 was $727 and $492, respectively.
	There was $5,691 of total unrecognized compensation cost related to non-vested stock option awards granted under the Company’s equity incentive plans as of September 30, 2014.  This cost is expected to be recognized over a weighted-average period of 2.87 years.
	Non-vested Restricted Stock Units (RSU)
	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 nine months ended September 30, 2014:
		Number of		Weighted-Average
		Shares of
		Restricted		Grant Date
		Stock Unit		Fair Value
		Awards		Per Share
	Non-vested restricted stock unit awards outstanding as of December 31, 2013	70,119		$	9.63
	Restricted stock unit awards granted	1,499,405		$	3.94
	Restricted stock unit awards forfeited	(137,347	)	$	5.37
	Restricted stock unit awards exercised	(506,819	)	$	3.78
	Non-vested restricted stock unit awards outstanding as of September 30, 2014	925,358		$	4.25
	As of September 30, 2014, there was $3,346 of total unrecognized compensation cost related to non-vested restricted stock unit awards.  This cost is expected to be recognized over a weighted-average period of 3.55 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-month intervals, or offering periods, at a price equal to 85% of the lower of (i) the fair market value at the beginning of the offering period or (ii) the fair market value at the end of the offering period, or the purchase date.
	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.
	The Company began its first offering period in August 2014 and will end in February 2015.
	The fair value for each award under the 2014 ESPP was estimated at the beginning of the offering period using a Black-Scholes option pricing model and requires subjective assumptions, including, but not limited, to the expected term of the award and stock price volatility. The Company estimates the expected term of the shares of common stock 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 historic volatility of comparable companies in its industry. The Company selected the risk-free interest rate 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. 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 nine months ended September 30, 2014, the following assumptions were used for awards issued under the 2014 ESPP:
		2014
		(unaudited)
	Volatility	33.82	%
	Risk-free interest rate	0.05	%
	Expected term (in years)	0.50	%
	Dividend yield	0.00	%
	As of September 30, 2014, there was $122 of total unrecognized compensation cost related to awards under the 2014 ESPP. This cost is expected to be recognized over a weighted-average period of less than one year.

Net_Loss_Attributable_to_Commo

Net Loss Attributable to Common Stockholders Per Share	9 Months Ended
	Sep. 30, 2014
Net Loss Attributable to Common Stockholders Per Share	'
Net Loss Attributable to Common Stockholders Per Share	'
	8.  Net Loss Attributable to Common Stockholders Per Share
	Basic net loss attributable to common stockholders per share is computed by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding for the period.
	Diluted net loss attributable to common stockholders per share is computed by dividing net 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 warrants to purchase mandatorily redeemable convertible preferred stock (“preferred stock”), warrants to purchase common stock, preferred stock, stock option awards and restricted stock unit awards.  Due to the Company’s net loss attributable to common stockholders: (i) warrants to purchase preferred stock; (ii) warrants to purchase common stock; (iii) preferred stock; (iv) stock option awards; and (v) restricted stock unit awards were not included in the computation of diluted net loss attributable to common stockholders per share, as the effects would be anti-dilutive.  Accordingly, basic and diluted net loss attributable to common stockholders per share is equal for the following periods presented:
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014			2013
			(unaudited)
	Numerator:
	Net loss		$	(5,474	)	$	(2,243	)	$	(18,075	)	$	(7,675	)
	Series F preferred stock deemed dividend(1)		—			15,849			—			15,849
	Net loss attributable to common stockholders		$	(5,474	)	$	(18,092	)	$	(18,075	)	$	(23,524	)
	Denominator:
	Weighted-average number of shares of common stock outstanding for basic and diluted net loss attributable to common stockholders per share(1)		50,751,303			49,115,766			50,485,734			21,686,759
	Basic and diluted net loss attributable to common stockholders per share		$	(0.11	)	$	(0.37	)	$	(0.36	)	$	(1.08	)
		-1		On July 2, 2013, the Company closed its initial public offering (“IPO”) of common stock in which the Company issued and sold 7,500,000 shares of common stock.  Upon closing of the IPO, all of the Company’s outstanding preferred stock automatically converted into 34,172,316 shares of common stock, which included a one-time $15,849 non-cash preferred stock deemed dividend related to 1,584,863 of additional shares of common stock issued to holders of the Company’s Series F preferred stock, in connection with the conversion terms of such preferred stock.
	The following securities were outstanding during the periods presented below and have been excluded from the calculation of diluted net loss attributable to common stockholders per share because the effect is anti-dilutive:
			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2014		2013		2014		2013
	Warrants to purchase preferred stock(1)		—		140,933		—		140,933
	Warrants to purchase common stock		39,824		39,824		39,824		39,824
	Preferred stock(1)		—		32,563,192		—		32,563,192
	Stock option awards		6,949,035		7,170,783		6,949,035		7,170,783
	Restricted stock unit awards		925,358		70,119		925,358		70,119
	Total anti-dilutive securities		7,914,217		39,984,851		7,914,217		39,984,851
		-1		On July 2, 2013, upon closing of the IPO, all of the Company’s outstanding preferred stock automatically converted into shares of common stock.  In addition, the outstanding warrants to purchase preferred stock automatically converted into warrants to purchase common stock.

Employee_Benefit_Plan

Employee Benefit Plan	9 Months Ended
	Sep. 30, 2014
Employee Benefit Plan	'
Employee Benefit Plan	'
	9. 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 will match 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 three-year graded vesting period.
	Total employer matching contributions to the Company’s 401(k) Plan for the three and nine months ended September 30, 2014 were $133 and $340, respectively.

Segment_and_Geographic_Informa

Segment and Geographic Information	9 Months Ended
	Sep. 30, 2014
Segment and Geographic Information	'
Segment and Geographic Information	'
	10.  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 CEO 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 September 30, 2014 and December 31, 2013 and substantially all revenue was generated through sales personnel in the United States for the three and nine months ended September 30, 2014 and 2013.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2014
Subsequent Events	'
Subsequent Events	'
	11.  Subsequent Events
	Credit Facility
	On October 20, 2014, the Company amended its existing Loan and Security Agreement, dated as of June 7, 2007, as amended (“Loan Agreement”), with Silicon Valley Bank (“SVB”).  The Loan Agreement was amended to, among other things: (i) increase the Company’s revolving credit facility from $25,000 to $32,500; (ii) add a letter of credit, foreign exchange and cash management facility in an aggregate amount of $2,500; (iii) reduce the Company’s interest rate from SVB’s prime rate plus 0.50% to SVB’s prime rate; (iv) increase the fee for unused capacity from 0.20% to 0.25% per year; (v) adjust the quick ratio financial covenant from 1.50 to 1.00 to 1.25 to 1.00; and (vi) extend the maturity date to December 30, 2016.  The Company had no outstanding borrowings under the Loan Agreement and was in compliance with all covenants as of September 30, 2014 and through October 20, 2014.
	Office Lease
	On October 28, 2014, the Company entered into a new lease (“Lease”) for its principal executive offices in New York, New York.  The Lease is for approximately 51,000 square feet of office space. The initial 10 year term of the Lease is estimated to commence on December 1, 2014, which is the date the Company expects to take possession of the leased premises. Pursuant to the Lease, the Company has the option to extend the Lease for one additional five-year term.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Summary of Significant Accounting Policies	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited interim consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the U.S. Securities and Exchange Commissions (the “SEC”) regarding unaudited interim financial information.  In the opinion of management, the accompanying unaudited interim consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the Company’s consolidated balance sheets, statements of operations, comprehensive loss and cash flows for the interim periods presented.  Operating results for the interim periods presented are not necessarily indicative of the results of operations to be expected for the full year or the results for any future periods due to seasonal and other factors.  Certain information and footnote disclosures normally included in the consolidated financial statements in accordance with U.S. GAAP have been omitted in accordance with the rules and regulations of the SEC.  Accordingly, these unaudited interim consolidated financial statements and footnotes should be read in conjunction with the consolidated financial statements and accompanying notes thereto included in the Company’s Form 10-K for the year ended December 31, 2013 filed with the SEC on March 28, 2014.
Principles of Consolidation	'
	Principles of Consolidation
	The unaudited interim consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries.  All significant inter-company balances and transactions have been eliminated in the accompanying unaudited interim consolidated financial statements.
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 by performing ongoing credit evaluations and monitoring its customers’ accounts receivable balances. For new customers 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 collection is reasonably assured.
	During the three and nine months ended September 30, 2014, there were no advertisers that accounted for more than 10% of revenue.  During the three and nine months ended September 30, 2013, there was one advertiser that accounted for approximately 10.5% and 10.7% of revenue, respectively.
	As of September 30, 2014 and December 31, 2013, there were no advertisers that accounted for more than 10% of outstanding accounts receivable.
Recently Issued Accounting Pronouncements	'
	Recently Issued Accounting Pronouncements
	FASB Accounting Standards Update No. 2014-09 — Revenue from Contracts with Customers
	In May 2014, the Financial Accounting Standards Board (the “FASB”) issued an accounting standards update that provides a comprehensive model for recognizing revenue with customers.  This update clarifies and replaces all existing revenue recognition guidance within U.S. GAAP.  This update is effective for annual and interim periods beginning after December 15, 2016, with no early adoption permitted.  The Company is currently evaluating the adoption method to apply and the impact that the update will have on its consolidated financial statements and related disclosures.
	FASB Accounting Standards Update No. 2013-11 — Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists
	In July 2013, the FASB issued new accounting guidance on the presentation of unrecognized tax benefits. This new guidance requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset when a net operating loss carryforward, a similar tax loss or a tax credit carryforward exists, with limited exceptions. This new guidance is effective for annual and interim periods beginning after December 15, 2013.  The Company adopted this guidance in the first quarter of 2014.  The adoption of this new accounting guidance did not have a material impact on the Company’s consolidated financial statements and related disclosures.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Measurements	'
Schedule of the assets and liabilities measured at fair value on a recurring basis	'
			September 30, 2014								December 31, 2013
			(unaudited)
			Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	Assets:
	Money market funds(1)		$	65,562	$	—	$	—	$	65,562	$	89,042	$	—	$	—	$	89,042
			$	65,562	$	—	$	—	$	65,562	$	89,042	$	—	$	—	$	89,042
		-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 approximates its fair value.  Amounts above do not include $12,347 and $3,649 of operating cash balances as of September 30, 2014 and December 31, 2013, respectively.

Property_and_Equipment_Net_Tab

Property and Equipment, Net (Tables)	9 Months Ended
	Sep. 30, 2014
Property and Equipment, Net	'
Schedule of property and equipment	'
		September 30,			December 31,
		2014			2013
		(unaudited)
	Cost:
	Computer hardware	$	5,505		$	3,908
	Leasehold improvements	1,516			1,422
	Furniture and fixtures	1,119			1,090
	Computer software	881			482
	Office equipment	176			104
		9,197			7,006
	Accumulated depreciation	(4,467		)	(3,618		)
	Total property and equipment, net of accumulated depreciation	$	4,730		$	3,388

Accounts_Payable_and_Accrued_E1

Accounts Payable and Accrued Expenses (Tables)	9 Months Ended
	Sep. 30, 2014
Accounts Payable and Accrued Expenses	'
Schedule of accounts payable and accrued expenses	'
			September 30,		December 31,
			2014		2013
			(unaudited)
	Trade accounts payable		$	24,991	$	24,121
	Accrued compensation, benefits and payroll taxes(1)		5,243		5,612
	Accrued cost of sales		1,416		1,267
	Other payables and accrued expenses		1,507		1,312
	Total accounts payable and accrued expenses		$	33,157	$	32,312
		-1		At September 30, 2014 and December 31, 2013, accrued compensation, benefits and payroll taxes includes $367 and $1,614 of stock-based long-term incentive compensation expense, respectively, related to the Company’s long-term sales incentive compensation plan.  Payments earned under the long-term sales incentive compensation plan for the 2013 plan year were paid in stock-based awards in August 2014.  The Company issued an aggregate total of 293,650 shares to employees under its 2013 Plan on account of such payments, net of 173,169 shares withheld to satisfy income tax withholding obligations in the amount of $565, which were remitted to tax authorities.  Payments earned under the plan for the 2014 plan year will be made in stock-based awards to participants that remain employed with the Company through June 30, 2015, which will be paid in August 2015.

Changes_in_Accumulated_Other_C1

Changes in Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2014
Changes in Accumulated Other Comprehensive Income	'
Schedule of components of accumulated other comprehensive income	'
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at July 1, 2014	$	200
	Other comprehensive loss before reclassifications	(63		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2014	$	137
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at July 1, 2013	$	195
	Other comprehensive gain before reclassifications	50
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2013	$	245
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at January 1, 2014	$	195
	Other comprehensive loss before reclassifications	(58		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2014	$	137
		Foreign
		Currency
		Translation
		Adjustment
	Beginning balance at January 1, 2013	$	345
	Other comprehensive loss before reclassifications	(100		)
	Amounts reclassified from accumulated other comprehensive income	—
	Ending balance at September 30, 2013	$	245

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Stock-Based Compensation	'
Schedule of the stock-based compensation expense	'
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014			2013		2014		2013
		(unaudited)
	Technology and development	$	239		$	142	$	653	$	391
	Sales and marketing	342			317		1,063		883
	General and administrative	607			459		1,578		1,145
	Total stock-based compensation expense	$	1,188		$	918	$	3,294	$	2,419
Summary of the Company's stock option award activity under all plans and related information	'
		Number of		Weighted-Average
		Stock Option
		Awards		Exercise Price
		Outstanding		Per Share
	Stock option awards outstanding as of December 31, 2013	7,302,761		$	3.96
	Stock option awards granted	1,006,094		$	3.88
	Stock option awards forfeited	(614,013	)	$	5.27
	Stock option awards exercised	(745,807	)	$	0.97
	Stock option awards outstanding as of September 30, 2014	6,949,035		$	4.16
	Stock option awards vested and exercisable as of September 30, 2014	4,446,692		$	3.66
Summary of the entity's non-vested restricted stock unit award activity	'
		Number of		Weighted-Average
		Shares of
		Restricted		Grant Date
		Stock Unit		Fair Value
		Awards		Per Share
	Non-vested restricted stock unit awards outstanding as of December 31, 2013	70,119		$	9.63
	Restricted stock unit awards granted	1,499,405		$	3.94
	Restricted stock unit awards forfeited	(137,347	)	$	5.37
	Restricted stock unit awards exercised	(506,819	)	$	3.78
	Non-vested restricted stock unit awards outstanding as of September 30, 2014	925,358		$	4.25
Schedule of assumptions used to estimate at the date of grant fair value for stock option awards granted under the stock option plan grant using the Black-Scholes option pricing model	'
		2014
		(unaudited)
	Volatility	33.82	%
	Risk-free interest rate	0.05	%
	Expected term (in years)	0.50	%
	Dividend yield	0.00	%

Net_Loss_Attributable_to_Commo1

Net Loss Attributable to Common Stockholders Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Net Loss Attributable to Common Stockholders Per Share	'
Schedule of basic and diluted net loss per share attributable to common stockholders	'
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014			2013
			(unaudited)
	Numerator:
	Net loss		$	(5,474	)	$	(2,243	)	$	(18,075	)	$	(7,675	)
	Series F preferred stock deemed dividend(1)		—			15,849			—			15,849
	Net loss attributable to common stockholders		$	(5,474	)	$	(18,092	)	$	(18,075	)	$	(23,524	)
	Denominator:
	Weighted-average number of shares of common stock outstanding for basic and diluted net loss attributable to common stockholders per share(1)		50,751,303			49,115,766			50,485,734			21,686,759
	Basic and diluted net loss attributable to common stockholders per share		$	(0.11	)	$	(0.37	)	$	(0.36	)	$	(1.08	)
		-1		On July 2, 2013, the Company closed its initial public offering (“IPO”) of common stock in which the Company issued and sold 7,500,000 shares of common stock.  Upon closing of the IPO, all of the Company’s outstanding preferred stock automatically converted into 34,172,316 shares of common stock, which included a one-time $15,849 non-cash preferred stock deemed dividend related to 1,584,863 of additional shares of common stock issued to holders of the Company’s Series F preferred stock, in connection with the conversion terms of such preferred stock.
Schedule of securities excluded from the calculation of diluted net loss per share attributable to common stockholders	'
			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2014		2013		2014		2013
	Warrants to purchase preferred stock(1)		—		140,933		—		140,933
	Warrants to purchase common stock		39,824		39,824		39,824		39,824
	Preferred stock(1)		—		32,563,192		—		32,563,192
	Stock option awards		6,949,035		7,170,783		6,949,035		7,170,783
	Restricted stock unit awards		925,358		70,119		925,358		70,119
	Total anti-dilutive securities		7,914,217		39,984,851		7,914,217		39,984,851
		-1		On July 2, 2013, upon closing of the IPO, all of the Company’s outstanding preferred stock automatically converted into shares of common stock.  In addition, the outstanding warrants to purchase preferred stock automatically converted into warrants to purchase common stock.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (Advertiser concentration)	3 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Dec. 31, 2013
	Revenue	Revenue	Revenue	Revenue	Accounts receivable	Accounts receivable
	item	item	item	item	item	item
Concentrations of credit risk	'	'	'	'	'	'
Number of advertisers that account for more than 10% of revenue or accounts receivable	0	1	0	1	0	0
Revenue concentration	'	10.50%	'	10.70%	'	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Measurements	'	'
Operating cash	$12,347	$3,649
Total	'	'
Fair Value Measurements	'	'
Money market funds	65,562	89,042
Level 1	'	'
Fair Value Measurements	'	'
Money market funds	65,562	89,042
Recurring | Total	'	'
Fair Value Measurements	'	'
Money market funds	65,562	89,042
Recurring | Level 1	'	'
Fair Value Measurements	'	'
Money market funds	$65,562	$89,042

Property_and_Equipment_Net_Det

Property and Equipment, Net (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Property and Equipment, Net	'	'	'	'	'
Cost	$9,197	'	$9,197	'	$7,006
Accumulated depreciation	-4,467	'	-4,467	'	-3,618
Total property and equipment, net of accumulated depreciation	4,730	'	4,730	'	3,388
Depreciation, Depletion and Amortization	464	362	1,275	919	'
Reduction to cost and accumulated depreciation of fully depreciated equipment and leasehold improvements no longer in use	'	'	426	654	'
Computer hardware	'	'	'	'	'
Property and Equipment, Net	'	'	'	'	'
Cost	5,505	'	5,505	'	3,908
Leasehold improvements	'	'	'	'	'
Property and Equipment, Net	'	'	'	'	'
Cost	1,516	'	1,516	'	1,422
Furniture and fixtures	'	'	'	'	'
Property and Equipment, Net	'	'	'	'	'
Cost	1,119	'	1,119	'	1,090
Computer software	'	'	'	'	'
Property and Equipment, Net	'	'	'	'	'
Cost	881	'	881	'	482
Office equipment	'	'	'	'	'
Property and Equipment, Net	'	'	'	'	'
Cost	$176	'	$176	'	$104

Accounts_Payable_and_Accrued_E2

Accounts Payable and Accrued Expenses (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts Payable and Accrued Expenses	'	'
Trade accounts payable	$24,991	$24,121
Accrued compensation, benefits and payroll taxes	5,243	5,612
Accrued cost of sales	1,416	1,267
Other payables and accrued expenses	1,507	1,312
Total accounts payable and accrued expenses	33,157	32,312
Stock-based long-term incentive compensation	367	1,614
Amount of forfeitures made under the plan	$565	'
Number of shares issued to employees under long-term incentive plan	293,650	'
Number of shares under long-term incentive plan forfeited	173,169	'

Changes_in_Accumulated_Other_C2

Changes in Accumulated Other Comprehensive Income (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified			Foreign Currency Translation Adjustment	Foreign Currency Translation Adjustment	Foreign Currency Translation Adjustment	Foreign Currency Translation Adjustment
Changes in accumulated other comprehensive Income	'	'	'	'	'	'
Balance at the beginning of the period	$137	$195	$200	$195	$195	$345
Other comprehensive gain (loss) before reclassifications	'	'	-63	50	-58	-100
Balance at the end of the period	$137	$195	$137	$245	$137	$245

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Stock-Based Compensation Expense	'	'	'	'
Stock-based compensation expense	$1,188	$918	$3,294	$2,419
Technology and development	'	'	'	'
Stock-Based Compensation Expense	'	'	'	'
Stock-based compensation expense	239	142	653	391
Sales and marketing	'	'	'	'
Stock-Based Compensation Expense	'	'	'	'
Stock-based compensation expense	342	317	1,063	883
General and administrative	'	'	'	'
Stock-Based Compensation Expense	'	'	'	'
Stock-based compensation expense	$607	$459	$1,578	$1,145

StockBased_Compensation_Detail1

Stock-Based Compensation (Details 2)	Sep. 30, 2014	Dec. 31, 2013
	item	item
Stock-Based Compensation	'	'
Number of stock-based incentive plans	5	5
Number of stock-based incentive plans assumed as part of acquisition	2	2

StockBased_Compensation_Detail2

Stock-Based Compensation (Details 3) (USD $)	9 Months Ended
	Sep. 30, 2014
Number of shares outstanding	'
Stock option awards outstanding at the beginning of the period (in shares)	7,302,761
Stock option awards granted (in shares)	1,006,094
Stock option awards forfeited (in shares)	-614,013
Stock option awards exercised (in shares)	-745,807
Stock option awards outstanding at the end of the period (in shares)	6,949,035
Stock option awards vested and exercisable at the end of the period (in shares)	4,446,692
Weighted average exercise price	'
Stock option awards outstanding at the beginning of the period (in dollars per share)	$3.96
Stock option awards granted (in dollars per share)	$3.88
Stock option awards forfeited (in dollars per share)	$5.27
Stock option awards exercised (in dollars per share)	$0.97
Stock option awards outstanding at the end of the period (in dollars per share)	$4.16
Stock option awards vested and exercisable at the end of the period (in dollars per share)	$3.66

StockBased_Compensation_Detail3

Stock-Based Compensation (Details 4) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Stock-Based Incentive Plans	'	'
Cliff period	'1 year	'
Weighted average grant date fair values of option awards granted (in dollars per share)	$1.84	'
Total intrinsic values of options exercised	$2,378	$993
Cash received from options exercised	727	492
Unrecognized compensation cost related to non-vested share based compensation arrangements	$5,691	'
Weighted-average period over which unrecognized compensation cost is expected to be recognized	'2 years 10 months 13 days	'
Maximum	'	'
Stock-Based Incentive Plans	'	'
Vesting period	'4 years	'
Expiration period	'10 years	'

StockBased_Compensation_Detail4

Stock-Based Compensation (Details 5) (USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014
Weighted Average Grant Date Fair Value Per Share	'
Weighted-average period over which unrecognized compensation cost is expected to be recognized	'2 years 10 months 13 days
RSU	'
Restricted Stock Unit Awards	'
Non-vested restricted stock unit awards outstanding at the beginning of the period (in shares)	70,119
Restricted stock unit awards granted (In shares)	1,499,405
Restricted stock unit awards forfeited (in shares)	-137,347
Restricted stock unit awards exercised (in shares)	-506,819
Non-vested restricted stock unit awards outstanding at the end of the period (in shares)	925,358
Weighted Average Grant Date Fair Value Per Share	'
Restricted stock unit awards outstanding at the beginning of the period (in dollars per share)	9.63
Restricted stock unit awards granted (in dollars per share)	3.94
Restricted stock unit awards forfeited (in dollars per share)	5.37
Restricted stock unit awards exercised (in dollars per share)	3.78
Restricted stock unit awards at the end of the period (in dollars per share)	4.25
Unrecognized compensation cost	3,346
Weighted-average period over which unrecognized compensation cost is expected to be recognized	'3 years 6 months 18 days

StockBased_Compensation_Detail5

Stock-Based Compensation (Details 6) (2014 ESPP, USD $)	9 Months Ended
	Sep. 30, 2014
Stock-Based Incentive Plans	'
Length of purchase intervals under ESPP plan	'6 months
Percentage of purchase price per share	85.00%
Maximum payroll deductions allowed to purchase shares of common stock on purchase dates (as a percent)	15.00%
Maximum number of common stock permitted to be purchased by employees on any one purchase date under ESPP	5,000
Maximum amount of common stock permitted to be purchased by employees in any calendar year under ESPP	$25
Maximum	'
Stock-Based Incentive Plans	'
Shares of common stock are reserved for future issuance	2,000,000

StockBased_Compensation_Detail6

Stock-Based Compensation (Details 7) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Assumptions	'
Weighted-average period over which unrecognized compensation cost is expected to be recognized	'2 years 10 months 13 days
2014 ESPP	'
Assumptions	'
Volatility (as a percent)	33.82%
Risk-free interest rate (as a percent)	0.05%
Expected life	'6 months
Dividend yield (as a percent)	0.00%
Unrecognized compensation cost	122
2014 ESPP | Maximum	'
Assumptions	'
Weighted-average period over which unrecognized compensation cost is expected to be recognized	'1 year

Net_Loss_Attributable_to_Commo2

Net Loss Attributable to Common Stockholders Per Share (Details) (USD $)	0 Months Ended	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Jul. 02, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	7,914,217	39,984,851	7,914,217	39,984,851
Numerator:	'	'	'	'	'
Net loss	'	($5,474)	($2,243)	($18,075)	($7,675)
Series F preferred stock deemed dividend	'	'	15,849	'	15,849
Net loss attributable to common stockholders	'	-5,474	-18,092	-18,075	-23,524
Denominator:	'	'	'	'	'
Weighted-average number of shares of common stock outstanding for basic and diluted net loss attributable to common stockholders per share	'	50,751,303	49,115,766	50,485,734	21,686,759
Basic and diluted net loss attributable to common stockholders per share (in dollars per share)	'	($0.11)	($0.37)	($0.36)	($1.08)
Common stock sold and issued in IPO (in shares)	7,500,000	'	'	'	'
Common stock issued on automatic conversion of mandatorily redeemable convertible preferred stock (in shares)	34,172,316	'	'	'	'
Common stock issued in connection with the Series F preferred stock deemed dividend	$15,849	'	'	'	$15,849
Series F preferred stock deemed dividend (in shares)	1,584,863	'	'	'	'
Warrants to purchase preferred stock	'	'	'	'	'
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	0	140,933	0	140,933
Warrants to purchase common stock	'	'	'	'	'
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	39,824	39,824	39,824	39,824
Preferred stock	'	'	'	'	'
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	0	32,563,192	0	32,563,192
Stock option awards	'	'	'	'	'
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	6,949,035	7,170,783	6,949,035	7,170,783
RSU	'	'	'	'	'
Securities excluded from the calculation of weighted average common shares outstanding	'	'	'	'	'
Anti-dilutive securities excluded in the computation of diluted earnings per share (in shares)	'	925,358	70,119	925,358	70,119

Employee_Benefit_Plan_Details

Employee Benefit Plan (Details) (USD $)	3 Months Ended	8 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2014
Employee benefit plan	'	'	'
Entity's matching contribution as a percentage of each participating employee's contribution	'	50.00%	'
Vesting period	'	'3 years	'
Total employer matching contributions to the Plan	$133	'	$340
Maximum	'	'	'
Employee benefit plan	'	'	'
Employer matching contribution as a percentage of employee contribution	'	3.00%	'

Segment_and_Geographic_Informa1

Segment and Geographic Information (Details)	9 Months Ended
	Sep. 30, 2014
	item
Segment and Geographic Information	'
Number of operating segments	1
Number of reportable segments	1

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent event, USD $)	0 Months Ended		9 Months Ended			0 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Oct. 20, 2014	Oct. 20, 2014	Sep. 30, 2014	Oct. 20, 2014	Oct. 20, 2014	Oct. 20, 2014	Sep. 30, 2014
	Office Lease	Loan Agreement	Loan Agreement	Loan Agreement	Letter of credit, foreign exchange and cash management facility	Prime rate	Prime rate
	item					Loan Agreement	Loan Agreement
	sqft
Credit facility and accrued interest expense	'	'	'	'	'	'	'
Maximum borrowing capacity	'	'	$25,000	$32,500	$2,500	'	'
Variable base rate	'	'	'	'	'	'prime rate	'prime rate
Interest rate (as a percent)	'	'	'	'	'	'	0.50%
Fee for unused portion (as a percent)	'	0.25%	0.20%	'	'	'	'
Ratio of current assets to current liabilities (excluding deferred revenue)	'	1.25	1.5	'	'	'	'
Office Lease	'	'	'	'	'	'	'
Area leased in New York, New York (in square feet)	51,000	'	'	'	'	'	'
Term of lease	'10 years	'	'	'	'	'	'
Number Of Extension Options Pursuant To Lease Agreement	1	'	'	'	'	'	'
Term of lease option extension	'5 years	'	'	'	'	'	'