Tubemogul (TUBE) 10-Q 15 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	TUBE
Entity Registrant Name	TUBEMOGUL INC
Entity Central Index Key	1449278
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		30,413,523

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets:
Cash and cash equivalents	$36,855	$46,592
Accounts receivable, net	86,547	88,457
Prepaid expenses and other current assets	2,728	2,322
Total current assets	126,130	137,371
Property, equipment and software, net	4,510	3,902
Deferred tax assets	287	287
Restricted cash	742	742
Other assets	419	405
Total assets	132,088	142,707
Current liabilities:
Accounts payable	23,869	19,087
Accrued liabilities	38,767	50,438
Current portion of note payable, net of discount	996	1,362
Deferred revenue	631	302
Deferred tax liabilities	245	276
Total current liabilities	64,508	71,465
Deferred rent	864	601
Total liabilities	65,372	72,066
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock; $0.001 par value; 10,000,000 shares authorized as of December 31, 2014 and March 31, 2015; 0 shares outstanding as of December 31, 2014 and March 31, 2015
Common stock; $0.001 par value; 200,000,000 shares authorized as of December 31, 2014 and March 31, 2015; 29,837,892 and 30,274,376 shares issued and outstanding as of December 31, 2014 and March 31, 2015, respectively	30	30
Additional paid-in capital	97,325	94,013
Accumulated deficit	-30,429	-23,285
Accumulated other comprehensive loss	-210	-117
Total stockholders’ equity	66,716	70,641
Total liabilities and stockholders’ equity	$132,088	$142,707

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement Of Financial Position [Abstract]
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	30,274,376	29,837,892
Common stock, shares outstanding	30,274,376	29,837,892

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue:
Total revenue	$30,316	$22,026
Cost of revenue	8,303	6,215
Gross profit	22,013	15,811
Operating expenses:
Research and development	8,769	3,808
Sales and marketing	11,112	7,929
General and administrative	7,827	4,438
Total operating expenses	27,708	16,175
Loss from operations	-5,695	-364
Other expense, net:
Interest expense, net	-28	-41
Change in fair value of convertible preferred stock warrant liability		-281
Foreign exchange loss	-1,307	-36
Other expense, net	-1,335	-358
Net loss before income taxes	-7,030	-722
Provision for income taxes	-114	-45
Net loss	-7,144	-767
Basic and diluted net loss per share attributable to common stockholders	($0.24)	($0.11)
Basic and diluted weighted-average shares used to compute net loss per share attributable to common stockholders	30,026,197	6,750,834
Platform Direct
Revenue:
Total revenue	14,304	9,248
Platform Services
Revenue:
Total revenue	$16,012	$12,778

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net loss	($7,144)	($767)
Other comprehensive loss:
Foreign currency translation adjustments	-93	-80
Comprehensive loss	($7,237)	($847)

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net loss	($7,144)	($767)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	412	140
Loss on change in value of convertible preferred stock warrant liability		281
Provision for doubtful accounts	79	88
Provision for credit memos	558	450
Stock-based compensation expense	2,401	416
Deferred income taxes	-31	-38
Changes in operating assets and liabilities:
Accounts receivable	1,273	-7,013
Prepaid expenses and other current assets	-406	180
Other assets	-14	-25
Accounts payable	4,605	820
Accrued liabilities	-11,671	-2,793
Deferred rent	263	134
Deferred revenue	329	79
Deferred offering costs		-1,605
Net cash used in operating activities	-9,346	-9,653
Cash flows from investing activities:
Increase in restricted cash		-408
Purchases of property, equipment and software	-843	-837
Net cash used in investing activities	-843	-1,245
Cash flows from financing activities:
Repayments on notes payable	-366	-348
Proceeds from line of credit		6,900
Proceeds from issuance of convertible note		7
Proceeds from issuances of common stock under ESPP	721
Proceeds from options exercised	190	138
Net cash provided by financing activities	545	6,697
Effect of exchange rate changes on cash and cash equivalents	-93	-37
Net decrease in cash and cash equivalents	-9,737	-4,238
Cash and cash equivalents, beginning of period	46,592	19,475
Cash and cash equivalents, end of period	36,855	15,237
Supplemental disclosures:
Equipment purchased and unpaid at period end	177
Cash paid for interest	$34	$41

The_Company_and_its_Significan

The Company and its Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
The Company and its Significant Accounting Policies	1. The Company and its Significant Accounting Policies
	The Company
	TubeMogul, Inc. (the Company), a Delaware corporation, is an enterprise software company for digital branding. The Company’s customers include many of the world’s largest brands and their media agencies.
	The Company’s headquarters are in Emeryville, California and it has offices in Chicago, Detroit, Kiev, London, Los Angeles, New York, Paris, Sao Paolo, Shanghai, Singapore, Sydney, Tokyo, and Toronto.
	Principles of Consolidation and Basis of Presentation
	These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting, and include the accounts of the Company’s wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, filed with the SEC on March 31, 2015.
	The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. These unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, the Company’s comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending December 31, 2015 or any other period.
	Use of Estimates
	The preparation of the financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these condensed consolidated financial statements include allowances for doubtful accounts and credit memos, useful lives for depreciation and amortization, loss contingencies, valuation of deferred tax assets, provisions for uncertain tax positions, capitalization of software costs and assumptions used for valuation of stock-based compensation and convertible preferred stock warrant liability. Actual results could differ from those and other estimates.
	Accounts Receivable
	Accounts receivable are stated at net realizable value. The Company provides an allowance for doubtful accounts based on management’s evaluation of outstanding accounts receivable. The Company maintains reserves for potential credit losses on customer accounts when deemed necessary. The Company analyzes specific accounts receivable, historical bad debts, customer concentrations, current economic trends, and changes in the customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off when no future collection is possible.
	Many of the Company’s contracts with advertising agencies provide that if the brand (i.e., the agency’s customer) does not pay the agency, the agency is not liable to the Company and the Company must seek payment from the brand. Accordingly, the Company considers the creditworthiness of the brand in establishing its allowance for doubtful accounts. However, since inception, the Company has not had to initiate collection efforts directly with any brands where the contract was with an advertising agency.
	The following table presents the changes in the allowance for doubtful accounts:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	(714	)	$	(1,369	)
	Additions to allowance		(903	)		(79	)
	Write offs, net of recoveries		248			130
	Balance, end of period	$	(1,369	)	$	(1,318	)
	Beginning in Q1 2014 the Company established a reserve for credit memos. On a quarterly basis, the amount of revenue that is reserved for credit memos is calculated based on the Company’s historical trends and data specific to each reporting period. The Company reviews the actual credit memos issued in prior quarters as they relate to prior periods and establishes a rate at which credit memos effect prior periods. The Company then applies the established rate to the current period revenue as a basis for estimating future credit memos.
	The following table presents the changes in the allowance for credit memos:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	—		$	(460	)
	Additions to allowance		(1,875	)		(558	)
	Issued credit memos		1,415			590
	Balance, end of period	$	(460	)	$	(428	)
	Fair Value Measurement and Financial Instruments
	The Company measures the fair value of its financial instruments in accordance with of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) for Fair Value Measurements. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair values of all reported assets and liabilities that represent financial instruments, the Company uses the carrying market values of such amounts. The provision establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company.
	Unobservable inputs are inputs that reflect the Company’s assumptions as to what market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The hierarchy is broken down into three levels based on the observability of inputs as follows:
	Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.
	Level 2 — Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.
	Level 3 — Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.
	The Company recorded $46,592 and $36,855 of Cash and cash equivalents as of December 31, 2014 and March 31, 2015, respectively, which are measured at fair value on a recurring basis. Inputs used in measuring fair value of Cash and cash equivalents are categorized as Level 1.
	In fiscal year 2010, the Company issued a Series A-1 preferred stock warrant that contained a price protection clause that provides that the exercise price of the warrants is to be adjusted downwards upon the Company issuing Additional Stock (as defined in the warrant agreement) at more favorable pricing. As a result of this price protection clause, the Company determined that the warrant is not considered indexed to the Company’s own stock and as a result recorded the warrant as a liability measured at fair value at the time of issuance. The Company records “mark-to-market” adjustments each reporting period under other expense, net. As the warrant’s fair value is based on significant inputs that are not observable in the market, they are categorized as Level 3. On July 23, 2014, upon the closing of the Company’s IPO, the warrant converted from a warrant to purchase Series A-1 preferred stock to a warrant to purchase shares of common stock, and the liability at its then fair value of $516 was reclassified to additional paid-in capital. Prior to this date, all changes in the fair value of the warrant were recorded in other expense in the accompanying condensed consolidated statements of operations. On August 15, 2014, the warrant was net exercised in full for 69,895 shares of common stock. As of December 31, 2014 and March 31, 2015 no warrant liability was recorded on the condensed consolidated balance sheets.
	Changes in warrant liability consisted of the following during:
		Year Ended
		December 31,
		2014
	Balance, beginning of year	$	684
	Change in fair value of convertible preferred stock		(168	)
	warrant liability
	Conversion of preferred stock warrants to common stock		(516	)
	warrants
	Balance, end of year	$	—
	Since all carrying amounts approximate fair value, no other comprehensive income or loss has been recognized. There were no sales, purchases, settlements, or transfers in or out of Level 3 liabilities.
	Other financial instruments not measured at fair value on the accompanying consolidated balance sheets at December 31, 2014 and March 31, 2015, but which require disclosure of their fair values include accounts receivable, accounts payable, accrued expenses and debt. The estimated fair values of such instruments at December 31, 2014 and March 31, 2015 approximated their carrying values. The fair values of all of these instruments are categorized as Level 2 in the fair value hierarchy.
	Recent Accounting Pronouncements
	In May 2014, FASB, issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers, or ASU 2014-09, which clarifies existing accounting literature relating to how and when a company recognizes revenue. Under ASU 2014-09, a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services. Additionally, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard allows for either a full retrospective or a modified retrospective transition method. The FASB tentatively decided on April 1, 2015 to defer for one year the effective date of the new revenue standard for public and nonpublic entities reporting under GAAP. The FASB also tentatively decided to permit entities to early adopt the standard. The tentative decisions will be exposed in an upcoming proposed Accounting Standards Update (ASU) with a 30-day comment period. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.
	In April 2015, FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides explicit guidance to help companies evaluate the accounting for fees paid by a customer in a cloud computing arrangement. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the license consistent with its accounting for other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. For all other entities, the amendments are effective for annual periods beginning after December 15, 2015, and interim periods in annual periods beginning after December 15, 2016. An entity can elect to adopt the amendments either prospectively for all arrangements entered into or materially modified after the effective date, or retrospectively. Early adoption is permitted for all entities. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

Property_Equipment_and_Softwar

Property, Equipment and Software	3 Months Ended
	Mar. 31, 2015
Property Plant And Equipment [Abstract]
Property, Equipment and Software	2. Property, Equipment and Software
	Property, equipment and software as of December 31, 2014 and March 31, 2015 consisted of the following:
		December 31,			March 31,
		2014			2015
	Computer, software and office equipment	$	1,928		$	2,117
	Capitalized internal use software costs		1,166			1,627
	Furniture and fixtures		1,049			1,087
	Leasehold improvements		1,043			1,375
			5,186			6,206
	Less accumulated depreciation and amortization		(1,284	)		(1,696	)
	Total	$	3,902		$	4,510
	Total depreciation and amortization expense, was $140 and $412 for three months ended March 31, 2014 and 2015, respectively.

Accrued_Liabilities

Accrued Liabilities	3 Months Ended
	Mar. 31, 2015
Accounts Payable And Accrued Liabilities Current [Abstract]
Accrued Liabilities	3. Accrued Liabilities
	Accrued liabilities at December 31, 2014 and March 31, 2015, consisted of the following:
		December 31,		March 31,
		2014		2015
	Accrued media costs	$	41,436	$	30,174
	Sales commissions		2,826		1,795
	Payroll and related expenses		3,757		3,147
	Other accrued expenses		2,419		3,651
		$	50,438	$	38,767
	Accrued media costs consist of amounts owed to the Company’s vendors for impressions delivered through December 31, 2014 and March 31, 2015.

Debt_Obligations

Debt Obligations	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt Obligations	4. Debt Obligations
	Note Payable
	Growth Capital Term-Debt and Working Capital Line of Credit
	On August 21, 2013, the Company entered into an amended and restated loan and security agreement providing for a growth capital facility and a revolving line of credit. Under the growth capital facility, the Company has the ability to borrow a maximum of $4.25 million in growth capital term loan advances, which bear an interest rate of 4.75% and are secured by the Company’s assets. Under the revolving line of credit, the Company may be advanced up to $20.0 million based on 80% of eligible accounts receivable less the outstanding growth capital term loan balance at the advance date as defined in the amended agreement. Monthly payments of principal and interest are payable in equal installments.
	On April 18, 2014, the Company entered into an amendment to its amended and restated loan and security agreement dated August 21, 2013. The amendment increased the revolving line of credit to $35.0 million, extended the availability and maturity of the revolving line through April 1, 2016, and added a new $3.0 million equipment term loan facility. The amendment also introduced a new financial covenant that requires the Company meet certain minimum revenue levels. As of March 31, 2015, the Company had available borrowings under the revolving line of credit of $35.0 million. The equipment term loan facility expired and was not renewed.
	Under the amended and restated loan and security agreement, the Company may borrow under the revolving line of credit up to the lesser of (a) $35.0 million, and (b) a borrowing base equal to 80% of eligible accounts receivable as defined in the agreement, as amended. If the Company’s trailing nine-month EBITDA as defined in the amendment is less than $1.0 million, then the outstanding amount of advances under the equipment loan facility are deducted from availability. Advances under the line of credit accrue interest at a floating per annum rate equal to the Western Edition Wall Street Journal prime rate. While the interest rate applicable to outstanding advances under the revolving line did not change under the amendment, the Company is now required to pay a minimum amount of interest equal to the amount of interest that would accrue per quarter on a notional outstanding principal balance of $2.0 million, or $1.0 million if the Company maintains more than $50.0 million in deposits with the lender.
	If the combined amount of the Company’s cash on deposit with the lender, plus the availability under the revolving line of credit is less than $10.0 million, then the Company is required to deliver additional reporting, collections on accounts receivable are applied to immediately reduce the outstanding amount of advances under the revolving line, and the lender is allowed to take, in good faith, additional reserves against availability under the revolving line.
	Future Payments
	Future principal payments of long-term debt as of March 31, 2015 were as follows:
	2015 (remaining 9 months)	$	998
	Total		998
	Discount		(2	)
	Less current portion		(996	)
	Noncurrent portion of debt	$	—

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	5. Commitments and Contingencies
	Lease Commitments
	At various dates throughout 2014 and during the three months ended March 31, 2015, the Company entered into leases and subleases for office space. The leases expire at various dates through 2021.
	The Company’s commitments for minimum rentals under these leases as of March 31, 2015 are as follows:
		Operating
		leases
	2015 (remaining 9 months)	$	3,100
	2016		1,781
	2017		1,123
	2018		874
	2019		613
	Thereafter		1,063
	Total minimum lease payments	$	8,554
	Rent expense was $485 and $625 for the three months ended March 31, 2014 and 2015, respectively.
	Irrevocable Standby Letter of Credit
	On July 2, 2013, the Company entered into an irrevocable standby letter of credit in the amount of $334 for the benefit of its sub landlord. The irrevocable standby letter of credit is for a one-year term and expires on July 2, 2014 and may be canceled prior to the expiration date upon the written request of the beneficiary. The letter of credit was automatically renewed on July 2, 2014 and the expiration date was extended to July 2, 2015.
	In February 2014, the Company entered into an irrevocable standby letter of credit in the amount of $408 for the benefit of one of its lessors. The irrevocable standby letter of credit is for a one year term and expires in February 2015 and may be canceled prior to the expiration date upon the written request of the beneficiary.
	The Company is contractually required to keep the letters of credit for the term of the lease, therefore, the letters of credit are recorded as restricted cash and are classified as long-term assets on the condensed consolidated Balance Sheets.
	Legal
	The Company is involved from time to time in various claims and legal actions arising in the ordinary course of business. While it is not feasible to predict or determine the ultimate outcome of these matters, the Company believes that none of its current legal proceedings will have a material adverse effect on its financial position or results of operations.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2015
Share Based Compensation [Abstract]
Stock-Based Compensation	6. Stock-Based Compensation
	On July 9, 2007, the board of directors and stockholders of the Company approved and adopted the TubeMogul, Inc. 2007 Equity Compensation Plan (the 2007 Plan) that permitted the grant of incentive and nonqualified stock options, stock awards (including restricted stock units), and stock appreciation rights to purchase shares of the common stock of the Company. Under the 2007 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. Restricted stock units (RSUs) granted are generally released from restriction over a four-year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.
	The Company has authorized and reserved a total of 6,093,703 shares of common stock under the 2007 Plan for the grant of permitted awards to employees, directors, consultants, and other service providers for the Company or related companies. The 2007 Plan terminated effective July 16, 2014, though it continues to govern outstanding awards issued under the 2007 Plan prior to July 16, 2014.
	In February 2014, the Company’s board of directors and stockholders approved and adopted the TubeMogul, Inc. 2014 Equity Incentive Plan (the 2014 Plan), and the 2014 Plan became effective on July 16, 2014, the day immediately preceding the Company’s IPO. The 2014 Plan permits the grant of stock options, stock appreciation rights, restricted stock, RSUs, performance awards and other cash-based or stock-based awards. In addition, the 2014 Plan contains a mechanism through which the Company may adopt a deferred compensation arrangement in the future. Under the 2014 Plan, shares of common stock are reserved for the issuance of permitted awards to eligible participants. Options granted will generally vest and become exercisable over a four-year term from the date of grant, at a rate of 25% after one year, then monthly on a straight-line basis thereafter. Options granted generally are exercisable for up to 10 years from the date of grant. RSUs granted will generally be released from restriction over a four year term from the date of grant, at a rate of 25% after one year, then quarterly on a straight-line basis thereafter.
	The Company initially authorized and reserved a total of 2,500,000 shares of common stock under the 2014 Plan for the grant of permitted awards. This reserve automatically increased on January 1, 2015 by 1,491,894 shares and will continue to increase on each subsequent anniversary through 2024, by an amount equal to the smaller of (a) five percent (5%) of the number of shares of common stock issued and outstanding on the immediately preceding December 31; and (b) an amount determined by the Company’s board of directors. This reserve may also be increased by up to an additional 4,975,000 shares, to include (a) any shares remaining available for grant under the 2007 Plan at the time of its termination; and (b) shares that would otherwise be returned to the 2007 Plan, upon the expiration or termination of awards granted under that plan.
	Shares subject to awards which expire or are cancelled or forfeited will again become available for issuance under the 2014 Plan.
	The shares available under the 2014 Plan will not be reduced by awards settled in cash.  The shares available under the 2014 Plan will be reduced by shares withheld to satisfy tax withholding obligations with respect to stock options and stock appreciation rights. The gross number of shares issued upon the exercise of stock appreciation rights or options exercised by means of a net exercise or by tender of previously owned shares will be deducted from the shares available under the 2014 Plan.
	For purposes of the tables below, the 2007 Plan and the 2014 Plan are collectively referred to as the “Plan.” The following table summarizes the Plan’s stock option activity:
						Weighted-		Weighted
						average		average
		Outstanding				exercise		remaining		Aggregate
		number of				price per		contractual		intrinsic
		shares				share		life		value
	Balance at December 31, 2014		5,166,223			$	5.32		7.75	$	83,132
	Options granted		40,000				15.18
	Options exercised		(223,862	)			0.88
	Options canceled		(23,218	)			2.41
	Balance at March 31, 2015		4,959,143			$	5.62		7.6	$	45,005
	Options exercisable and vested at March 31, 2015		2,386,525			$	1.4		6.21	$	29,879
	Options vested and expected to vest at March 31, 2015		4,775,924			$	5.45		7.54	$	44,020
	The weighted average fair value of options granted was $4.51 and $9.78 for the three months ended March 31, 2014 and 2015, respectively. The aggregate intrinsic value of options exercised was $7.2 million and $3.0 million for the three months ended March 31, 2014 and 2015, respectively.
	At March 31, 2015, there was approximately $11.9 million of total unrecognized compensation cost related to unvested options granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 2.38 years at March 31, 2015.
	The fair value of options granted to employees is estimated on the date of grant and to non-employees at each measurement period using the Black-Scholes-Merton option valuation model. This stock-based compensation expense valuation model requires the Company to make assumptions and judgments regarding the variables used in the calculation. These variances include the expected term (weighted average period of time that the options granted are expected to be outstanding), the expected volatility of the Company’s common stock, expected risk-free interest rate, expected dividends. To the extent actual results differ from the estimates, the difference will be recorded as a cumulative adjustment in the period estimates are revised. The Company uses the simplified calculation of expected term, as the Company does not have sufficient historical data to use any other method to estimate expected term. Expected volatility is based on an average of the historical volatilities of the common stock of several entities with characteristics similar to those of the Company. The expected risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option. Expected forfeitures are based on the Company’s historical experience.
	The following assumptions were used to calculate the fair value of options for employees:
		Three Months Ended
		March 31,
		2014		2015
	Risk-free interest rate	1.8% to1.98%			1.80%
	Dividend yield	—  %		—  %
	Volatility	66% to 67%			70%
	Expected term	5.9 to 6.4 years		6.5 years
	The following table summarizes the Plan’s RSUs activity:
						Weighted-		Weighted
		Outstanding				Average		average
		number of				Grant Date		remaining
		shares				Fair Value		contractual life
	Balance at December 31, 2014		998,145			$	10.99	$	6.53
	RSUs granted		343,830				15.46		6.86
	RSUs released		(91,469	)			10.13	—
	RSUs canceled		(48,193	)			11.24	—
	Balance at March 31, 2015		1,202,313			$	13.06	$	5.96
	The fair value of RSUs granted to employees is estimated on the date of grant and to non-employees at each measurement period using the fair value of the underlying common stock.
	At March 31, 2015, there was approximately $14.5 million of total unrecognized compensation cost related to unvested RSUs granted under the compensation plan. The remaining unrecognized compensation cost is expected to be recognized over the weighted average remaining vesting period of approximately 3.41 years at March 31, 2015.
	The following table summarizes the effects of stock-based compensation in the Company’s accompanying condensed consolidated statements of operations:
		Three Months Ended
		March 31,
		2014				2015
	Research and development	$	102			$	642
	Sales and marketing		140				709
	General and administrative		174				1,050
	Total stock-based compensation	$	416			$	2,401
	In February 2014, the Company’s board of directors adopted and the stockholders approved the Company’s 2014 Employee Stock Purchase Plan (the ESPP), which became effective on July 17, 2014. The ESPP allows eligible employees to purchase shares of the Company’s common stock at a discount through payroll deductions of up to 15% of their eligible compensation, subject to any plan limitations. The administrator may, in its discretion, modify the terms of offering periods. Due to the timing of the IPO, the first offering period started July 17, 2014 and ended on February 16, 2015. At the end of each offering period, employees are able to purchase shares at 85% of the lower of the fair market value of the Company’s common stock on the first trading day of the offering period or on the last day of the offering period. During Q1 2015, 121,153 shares were purchased under the ESPP.

Net_Loss_Per_Share

Net Loss Per Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Net Loss Per Share	7. Net Loss per Share
	The Company calculates its basic and diluted net loss per share in conformity with the two-class method required for companies with participating securities. Under the two-class method, in periods when the Company has net income, net income is determined by allocating undistributed earnings, calculated as net income less current period convertible preferred stock non-cumulative dividends, between common stock and convertible preferred stock. In computing diluted net income, undistributed earnings are re-allocated to reflect the potential impact of dilutive securities.
	The Company’s basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period. The diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period. For purposes of this calculation, convertible preferred stock, options to purchase common stock, RSUs and preferred and common stock warrants are considered common stock equivalents but have been excluded from the calculation of diluted net loss per share as their effect is antidilutive as the Company had net losses for the three months ended March 31, 2014 and 2015.
	The following table sets forth the computation of net loss per common share (in thousands, except per share data):
		Three Months Ended
		March 31,
		2014			2015
	Net loss	$	(767	)	$	(7,144	)
	Weighted-average shares used in computing basic and diluted net loss per share		6,750,834			30,026,197
	Basic and diluted net loss per share	$	(0.11	)	$	(0.24	)
	The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:
		Three Months Ended
		March 31,
		2014			2015
	Convertible preferred stock		15,510,330		—
	Employee stock options		4,139,687			4,959,143
	RSUs	—				1,202,313
	ESPP	—				83,222
	Convertible preferred stock warrants		102,161		—
	Total		19,752,178			6,244,678

Employee_Benefit_Plans

Employee Benefit Plans	3 Months Ended
	Mar. 31, 2015
Postemployment Benefits [Abstract]
Employee Benefit Plans	8. Employee Benefit Plans
	The Company established a 401(k) Profit Sharing Plan (the Plan) in 2009, pursuant to which the Company may make a discretionary contribution to the Plan each year, allocable to all plan participants. The Company is responsible for administrative expenses of the 401(k) Plan. On January 1, 2015, the Company began matching 25% of the employees’ contributions, subject to vesting conditions, to the 401(k) Plan. The Company contributed $192 for the three months ended March 31, 2015.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	9. Income Taxes
	The Company is subject to income tax in the United States as well as other tax jurisdictions in which it conducts business. Earnings from non-U.S. activities are subject to local country income tax. The Company does not provide for federal income taxes on the undistributed earnings of its foreign subsidiaries as such earnings are to be reinvested indefinitely.
	The Company recorded an income tax provision of $45 and $114 for the three months ended March 31, 2014 and 2015, respectively, related to foreign income taxes and state minimum taxes. Based on the available objective evidence during the three months ended March 31, 2015, management believes it is more likely than not that the tax benefits of the U.S. losses incurred during the three months ended March 31, 2015 may not be realized by the end of the 2015 fiscal year. Accordingly, the Company did not record the tax benefits of the U.S. losses incurred during the three months ended March 31, 2015. The primary difference between the effective tax rate and the federal statutory tax rate relates to foreign tax rate differences, meals and entertainment and state and local minimum and capital taxes. As of March 31, 2015, the Company had no material uncertain tax positions
	The provision for income taxes for the three months ended March 31, 2014 and 2015 primarily reflects the provision for income taxes for foreign and state taxes.
	Utilization of the net operating loss carryforwards may be subject to an annual limitation due to the ownership change limitations provided by the Internal Revenue Code of 1986, as amended (the Code), and similar state provisions. Any annual limitation may result in the expiration of net operating losses before utilization.

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Information	10. Segment Information
	The Company considers operating segments to be components of the Company in which separate financial information is available that is evaluated regularly by the Company’s chief operating decision maker (CODM) in deciding how to allocate resources and in assessing performance. The CODM for the Company is the Chief Executive Officer. The CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. The Company has one business activity, and there are no segment managers who are held accountable for operations, operating results or plans for levels or components below the consolidated unit level. Accordingly, the Company has determined that it has a single operating and reportable segment, which is to design, develop and market software for digital branding.

The_Company_and_its_Significan1

The Company and its Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Principles of Consolidation and Basis of Presentation	Principles of Consolidation and Basis of Presentation
	These unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting, and include the accounts of the Company’s wholly owned subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Therefore, these condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, filed with the SEC on March 31, 2015.
	The consolidated balance sheet as of December 31, 2014 included herein was derived from the audited financial statements as of that date. These unaudited condensed consolidated financial statements reflect all normal recurring adjustments necessary to present fairly the financial position, results of operations, the Company’s comprehensive loss and cash flows for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full fiscal year ending December 31, 2015 or any other period.
Use of Estimates	Use of Estimates
	The preparation of the financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these condensed consolidated financial statements include allowances for doubtful accounts and credit memos, useful lives for depreciation and amortization, loss contingencies, valuation of deferred tax assets, provisions for uncertain tax positions, capitalization of software costs and assumptions used for valuation of stock-based compensation and convertible preferred stock warrant liability. Actual results could differ from those and other estimates.
Accounts Receivable	Accounts Receivable
	Accounts receivable are stated at net realizable value. The Company provides an allowance for doubtful accounts based on management’s evaluation of outstanding accounts receivable. The Company maintains reserves for potential credit losses on customer accounts when deemed necessary. The Company analyzes specific accounts receivable, historical bad debts, customer concentrations, current economic trends, and changes in the customer payment terms when evaluating the adequacy of the allowance for doubtful accounts. Accounts receivable are written off when no future collection is possible.
	Many of the Company’s contracts with advertising agencies provide that if the brand (i.e., the agency’s customer) does not pay the agency, the agency is not liable to the Company and the Company must seek payment from the brand. Accordingly, the Company considers the creditworthiness of the brand in establishing its allowance for doubtful accounts. However, since inception, the Company has not had to initiate collection efforts directly with any brands where the contract was with an advertising agency.
	The following table presents the changes in the allowance for doubtful accounts:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	(714	)	$	(1,369	)
	Additions to allowance		(903	)		(79	)
	Write offs, net of recoveries		248			130
	Balance, end of period	$	(1,369	)	$	(1,318	)
	Beginning in Q1 2014 the Company established a reserve for credit memos. On a quarterly basis, the amount of revenue that is reserved for credit memos is calculated based on the Company’s historical trends and data specific to each reporting period. The Company reviews the actual credit memos issued in prior quarters as they relate to prior periods and establishes a rate at which credit memos effect prior periods. The Company then applies the established rate to the current period revenue as a basis for estimating future credit memos.
	The following table presents the changes in the allowance for credit memos:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	—		$	(460	)
	Additions to allowance		(1,875	)		(558	)
	Issued credit memos		1,415			590
	Balance, end of period	$	(460	)	$	(428	)
Fair Value Measurement and Financial Instruments	Fair Value Measurement and Financial Instruments
	The Company measures the fair value of its financial instruments in accordance with of the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) for Fair Value Measurements. Under this standard, fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (i.e., the exit price) in an orderly transaction between market participants at the measurement date. In determining fair values of all reported assets and liabilities that represent financial instruments, the Company uses the carrying market values of such amounts. The provision establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability developed based on market data obtained from sources independent of the Company.
	Unobservable inputs are inputs that reflect the Company’s assumptions as to what market participants would use in pricing the asset or liability developed based on the best information available under the circumstances. The hierarchy is broken down into three levels based on the observability of inputs as follows:
	Level 1 — Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date.
	Level 2 — Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability.
	Level 3 — Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date.
	The Company recorded $46,592 and $36,855 of Cash and cash equivalents as of December 31, 2014 and March 31, 2015, respectively, which are measured at fair value on a recurring basis. Inputs used in measuring fair value of Cash and cash equivalents are categorized as Level 1.
	In fiscal year 2010, the Company issued a Series A-1 preferred stock warrant that contained a price protection clause that provides that the exercise price of the warrants is to be adjusted downwards upon the Company issuing Additional Stock (as defined in the warrant agreement) at more favorable pricing. As a result of this price protection clause, the Company determined that the warrant is not considered indexed to the Company’s own stock and as a result recorded the warrant as a liability measured at fair value at the time of issuance. The Company records “mark-to-market” adjustments each reporting period under other expense, net. As the warrant’s fair value is based on significant inputs that are not observable in the market, they are categorized as Level 3. On July 23, 2014, upon the closing of the Company’s IPO, the warrant converted from a warrant to purchase Series A-1 preferred stock to a warrant to purchase shares of common stock, and the liability at its then fair value of $516 was reclassified to additional paid-in capital. Prior to this date, all changes in the fair value of the warrant were recorded in other expense in the accompanying condensed consolidated statements of operations. On August 15, 2014, the warrant was net exercised in full for 69,895 shares of common stock. As of December 31, 2014 and March 31, 2015 no warrant liability was recorded on the condensed consolidated balance sheets.
	Changes in warrant liability consisted of the following during:
		Year Ended
		December 31,
		2014
	Balance, beginning of year	$	684
	Change in fair value of convertible preferred stock		(168	)
	warrant liability
	Conversion of preferred stock warrants to common stock		(516	)
	warrants
	Balance, end of year	$	—
	Since all carrying amounts approximate fair value, no other comprehensive income or loss has been recognized. There were no sales, purchases, settlements, or transfers in or out of Level 3 liabilities.
	Other financial instruments not measured at fair value on the accompanying consolidated balance sheets at December 31, 2014 and March 31, 2015, but which require disclosure of their fair values include accounts receivable, accounts payable, accrued expenses and debt. The estimated fair values of such instruments at December 31, 2014 and March 31, 2015 approximated their carrying values. The fair values of all of these instruments are categorized as Level 2 in the fair value hierarchy.
Recent Accounting Pronouncements	Recent Accounting Pronouncements
	In May 2014, FASB, issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers, or ASU 2014-09, which clarifies existing accounting literature relating to how and when a company recognizes revenue. Under ASU 2014-09, a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services. Additionally, the guidance requires improved disclosures to help users of financial statements better understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The new standard allows for either a full retrospective or a modified retrospective transition method. The FASB tentatively decided on April 1, 2015 to defer for one year the effective date of the new revenue standard for public and nonpublic entities reporting under GAAP. The FASB also tentatively decided to permit entities to early adopt the standard. The tentative decisions will be exposed in an upcoming proposed Accounting Standards Update (ASU) with a 30-day comment period. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.
	In April 2015, FASB issued ASU No. 2015-05, Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement, which provides explicit guidance to help companies evaluate the accounting for fees paid by a customer in a cloud computing arrangement. The new guidance clarifies that if a cloud computing arrangement includes a software license, the customer should account for the license consistent with its accounting for other software licenses. If the arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for public business entities for annual periods, including interim periods within those annual periods, beginning after December 15, 2015. For all other entities, the amendments are effective for annual periods beginning after December 15, 2015, and interim periods in annual periods beginning after December 15, 2016. An entity can elect to adopt the amendments either prospectively for all arrangements entered into or materially modified after the effective date, or retrospectively. Early adoption is permitted for all entities. The Company is in the process of determining what impact, if any, the adoption of this ASU will have on its consolidated financial statements and related disclosures.

The_Company_and_its_Significan2

The Company and its Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Schedule of Allowance for Doubtful accounts	The following table presents the changes in the allowance for doubtful accounts:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	(714	)	$	(1,369	)
	Additions to allowance		(903	)		(79	)
	Write offs, net of recoveries		248			130
	Balance, end of period	$	(1,369	)	$	(1,318	)
Schedule of Changes in Allowance for Credit Memos	The following table presents the changes in the allowance for credit memos:
		Year Ended			Three Months Ended
		December 31,			March 31,
		2014			2015
	Balance, beginning of period	$	—		$	(460	)
	Additions to allowance		(1,875	)		(558	)
	Issued credit memos		1,415			590
	Balance, end of period	$	(460	)	$	(428	)
Schedule of Changes in Warrant Liability	Changes in warrant liability consisted of the following during:
		Year Ended
		December 31,
		2014
	Balance, beginning of year	$	684
	Change in fair value of convertible preferred stock		(168	)
	warrant liability
	Conversion of preferred stock warrants to common stock		(516	)
	warrants
	Balance, end of year	$	—

Property_Equipment_and_Softwar1

Property, Equipment and Software (Tables)	3 Months Ended
	Mar. 31, 2015
Property Plant And Equipment [Abstract]
Schedule of Property, Equipment and Software	Property, equipment and software as of December 31, 2014 and March 31, 2015 consisted of the following:
		December 31,			March 31,
		2014			2015
	Computer, software and office equipment	$	1,928		$	2,117
	Capitalized internal use software costs		1,166			1,627
	Furniture and fixtures		1,049			1,087
	Leasehold improvements		1,043			1,375
			5,186			6,206
	Less accumulated depreciation and amortization		(1,284	)		(1,696	)
	Total	$	3,902		$	4,510

Accrued_Liabilities_Tables

Accrued Liabilities (Tables)	3 Months Ended
	Mar. 31, 2015
Accounts Payable And Accrued Liabilities Current [Abstract]
Schedule of Accrued Liabilities	Accrued liabilities at December 31, 2014 and March 31, 2015, consisted of the following:
		December 31,		March 31,
		2014		2015
	Accrued media costs	$	41,436	$	30,174
	Sales commissions		2,826		1,795
	Payroll and related expenses		3,757		3,147
	Other accrued expenses		2,419		3,651
		$	50,438	$	38,767

Debt_Obligations_Tables

Debt Obligations (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Future Principal Payments of Long-Term Debt	Future principal payments of long-term debt as of March 31, 2015 were as follows:
	2015 (remaining 9 months)	$	998
	Total		998
	Discount		(2	)
	Less current portion		(996	)
	Noncurrent portion of debt	$	—

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2015
Commitments And Contingencies Disclosure [Abstract]
Schedule of Commitments for Minimum Rentals Under Operating Lease	The Company’s commitments for minimum rentals under these leases as of March 31, 2015 are as follows:
		Operating
		leases
	2015 (remaining 9 months)	$	3,100
	2016		1,781
	2017		1,123
	2018		874
	2019		613
	Thereafter		1,063
	Total minimum lease payments	$	8,554

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Summary of Stock Option Plan	The following table summarizes the Plan’s stock option activity:
						Weighted-		Weighted
						average		average
		Outstanding				exercise		remaining		Aggregate
		number of				price per		contractual		intrinsic
		shares				share		life		value
	Balance at December 31, 2014		5,166,223			$	5.32		7.75	$	83,132
	Options granted		40,000				15.18
	Options exercised		(223,862	)			0.88
	Options canceled		(23,218	)			2.41
	Balance at March 31, 2015		4,959,143			$	5.62		7.6	$	45,005
	Options exercisable and vested at March 31, 2015		2,386,525			$	1.4		6.21	$	29,879
	Options vested and expected to vest at March 31, 2015		4,775,924			$	5.45		7.54	$	44,020
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	The following table summarizes the Plan’s RSUs activity:
						Weighted-		Weighted
		Outstanding				Average		average
		number of				Grant Date		remaining
		shares				Fair Value		contractual life
	Balance at December 31, 2014		998,145			$	10.99	$	6.53
	RSUs granted		343,830				15.46		6.86
	RSUs released		(91,469	)			10.13	—
	RSUs canceled		(48,193	)			11.24	—
	Balance at March 31, 2015		1,202,313			$	13.06	$	5.96
Summary of Effects of Stock-Based Compensation	The following table summarizes the effects of stock-based compensation in the Company’s accompanying condensed consolidated statements of operations:
		Three Months Ended
		March 31,
		2014				2015
	Research and development	$	102			$	642
	Sales and marketing		140				709
	General and administrative		174				1,050
	Total stock-based compensation	$	416			$	2,401
Employees
Schedule of Assumptions Used to Calculate Fair Value of Options	The following assumptions were used to calculate the fair value of options for employees:
		Three Months Ended
		March 31,
		2014		2015
	Risk-free interest rate	1.8% to1.98%			1.80%
	Dividend yield	—  %		—  %
	Volatility	66% to 67%			70%
	Expected term	5.9 to 6.4 years		6.5 years

Net_Loss_Per_Share_Tables

Net Loss Per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Computation of Net Loss per Common Share	The following table sets forth the computation of net loss per common share (in thousands, except per share data):
		Three Months Ended
		March 31,
		2014			2015
	Net loss	$	(767	)	$	(7,144	)
	Weighted-average shares used in computing basic and diluted net loss per share		6,750,834			30,026,197
	Basic and diluted net loss per share	$	(0.11	)	$	(0.24	)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The following securities were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented:
		Three Months Ended
		March 31,
		2014			2015
	Convertible preferred stock		15,510,330		—
	Employee stock options		4,139,687			4,959,143
	RSUs	—				1,202,313
	ESPP	—				83,222
	Convertible preferred stock warrants		102,161		—
	Total		19,752,178			6,244,678

The_Company_and_its_Significan3

The Company and its Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts (Details) (Doubtful Accounts Receivables and Credit Memos, USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Doubtful Accounts Receivables and Credit Memos
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance, beginning of period	($1,369)	($714)
Additions to allowance	-79	-903
Write offs, net of recoveries	130	248
Balance, end of period	($1,318)	($1,369)

The_Company_and_its_Significan4

The Company and its Significant Accounting Policies - Schedule of Allowance for Credit Memos (Details) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Valuation And Qualifying Accounts Disclosure [Line Items]
Provision for credit memos	$558	$450
Credit Memos
Valuation And Qualifying Accounts Disclosure [Line Items]
Balance, beginning of period	-460
Additions to allowance	-558		-1,875
Provision for credit memos	590		1,415
Balance, end of period	($428)		($460)

The_Company_and_its_Significan5

The Company and its Significant Accounting Policies - Additional Information (Details) (USD $)	3 Months Ended	12 Months Ended	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Jul. 23, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 15, 2014
Schedule Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	$36,855				$46,592
Warrant liability	0	0		684
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included in Other Comprehensive Income (Loss)	0
Transfers in or out	0	0
Series A-1
Schedule Of Significant Accounting Policies [Line Items]
Conversion of preferred stock warrants to common stock						69,895
Series A-1 | Additional Paid-in Capital
Schedule Of Significant Accounting Policies [Line Items]
Conversion of convertible preferred stock warrants to common stock			$516

The_Company_and_its_Significan6

The Company and its Significant Accounting Policies - Schedule of Changes in Warrant Liability (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2014	Mar. 31, 2015
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Abstract]
Balance, beginning of year	$684	$684	$0
Change in fair value of convertible preferred stock warrant liability	281	-168
Conversion of preferred stock warrants to common stock warrants		-516
Balance, end of year		$0	$0

Property_Equipment_and_Softwar2

Property, Equipment and Software - Schedule of Property, Equipment and Software (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	$6,206	$5,186
Less accumulated depreciation and amortization	-1,696	-1,284
Total	4,510	3,902
Computer, Software and Office Equipment
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	2,117	1,928
Capitalized Internal Use Software Costs
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	1,627	1,166
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	1,087	1,049
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, equipment and software, gross	$1,375	$1,043

Property_Equipment_and_Softwar3

Property, Equipment and Software - Additional Information (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Property Plant And Equipment [Abstract]
Depreciation and amortization expense	$412	$140

Accrued_Liabilities_Schedule_o

Accrued Liabilities - Schedule of Accrued Liabilities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Payables And Accruals [Abstract]
Accrued media costs	$30,174	$41,436
Sales commissions	1,795	2,826
Payroll and related expenses	3,147	3,757
Other accrued expenses	3,651	2,419
Total accrued liabilities	$38,767	$50,438

Debt_Obligations_Growth_Capita

Debt Obligations - Growth Capital Term-Debt and Working Capital Line of Credit - Additional Information (Details) (USD $)	0 Months Ended	1 Months Ended	3 Months Ended
	Apr. 18, 2014	Aug. 21, 2013	Mar. 31, 2015	Sep. 30, 2014
Line Of Credit Facility [Line Items]
Available borrowing with revolving line of credit				$35,000,000
Line of credit facility exceeds borrowing capacity to maintain ratio			10,000,000
Growth Capital Term Debt
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		4,250,000
Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	35,000,000	20,000,000
Term loan interest rate		4.75%
Percentage of eligible accounts receivable		80.00%
Line of credit facility expiration date	1-Apr-16
Line of credit facility, covenant terms			Under the amended and restated loan and security agreement, the Company may borrow under the revolving line of credit up to the lesser of (a) $35.0 million, and (b) a borrowing base equal to 80% of eligible accounts receivable as defined in the agreement, as amended. If the Company’s trailing nine-month EBITDA as defined in the amendment is less than $1.0 million, then the outstanding amount of advances under the equipment loan facility are deducted from availability. Advances under the line of credit accrue interest at a floating per annum rate equal to the Western Edition Wall Street Journal prime rate. While the interest rate applicable to outstanding advances under the revolving line did not change under the amendment, the Company is now required to pay a minimum amount of interest equal to the amount of interest that would accrue per quarter on a notional outstanding principal balance of $2.0 million, or $1.0 million if the Company maintains more than $50.0 million in deposits with the lender.
Revolving Credit Facility | Deposits with Lender More Than Fifty Million
Line Of Credit Facility [Line Items]
Investment Owned, Balance, Principal Amount			2,000,000
Revolving Credit Facility | Deposits with Lender Less Than or Equals to Fifty Million
Line Of Credit Facility [Line Items]
Investment Owned, Balance, Principal Amount			1,000,000
Equipment Term Loan Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$3,000,000

Debt_Obligations_Future_Princi

Debt Obligations - Future Principal Payments of Long-Term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
2015 (remaining 9 months)	$998
Total	998
Discount	-2
Less current portion	($996)	($1,362)

Commitments_and_Contingencies_1

Commitments and Contingencies - Commitments For Minimum Rentals Under Operating Lease (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Commitments And Contingencies Disclosure [Abstract]
2015 (remaining 9 months)	$3,100
2016	1,781
2017	1,123
2018	874
2019	613
Thereafter	1,063
Total minimum lease payments	$8,554

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Infromation (Details) (USD $)	3 Months Ended		0 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Feb. 28, 2014	Jul. 02, 2013
Long Term Purchase Commitment [Line Items]
Rent expense	$625	$485
Irrevocable letters of credit amount			408	334
Standby Letters of Credit
Long Term Purchase Commitment [Line Items]
Letter of credit agreement period			1 year	1 year
Line of credit facility expiration date			28-Feb-15	2-Jul-15

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Details) (USD $)	3 Months Ended		1 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Feb. 28, 2014	Jan. 01, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of increase on common stock authorized on each subsequent anniversary	5.00%
Common stock, shares authorized reserve, description and terms	This reserve automatically increased on January 1, 2015 by 1,491,894 shares and will continue to increase on each subsequent anniversary through 2024, by an amount equal to the smaller of (a) five percent (5%) of the number of shares of common stock issued and outstanding on the immediately preceding December 31; and (b) an amount determined by the Company’s board of directors.
Weighted average grant date fair value of options granted	$9.78	$4.51
Aggregate intrinsic value of options exercised	$3	$7.20
Common Stock Including Additional Paid in Capital
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized	4,975,000
2007 Equity Compensation Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized	6,093,703
2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized	2,500,000			1,491,894
2014 ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock purchase price discounted rate for eligible employee			15.00%
Lower fair market value of common stock on the first trading day			85.00%
Number of shares purchased under plan	121,153
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	11.9
Unrecognized compensation cost expected to be recognized period	2 years 2 months 23 days
Employee Stock Option | 2007 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period	4 years
Employee Stock Option | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period	4 years
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost	$14.50
Unrecognized compensation cost expected to be recognized period	3 years 4 months 28 days
Restricted Stock Units (RSUs) | 2007 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period	4 years
Restricted Stock Units (RSUs) | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted vesting period	4 years
After one year from the date of grant [Member] | Employee Stock Option | 2007 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period	25.00%
After one year from the date of grant [Member] | Employee Stock Option | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period	25.00%
After one year from the date of grant [Member] | Restricted Stock Units (RSUs) | 2007 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period	25.00%
After one year from the date of grant [Member] | Restricted Stock Units (RSUs) | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of options granted vesting period	25.00%
Maximum | Employee Stock Option | 2007 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted exercisable vesting period	10 years
Maximum | Employee Stock Option | 2014 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted exercisable vesting period	10 years

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Stock Option Plan (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Outstanding number of shares
Outstanding number of shares, Beginning	5,166,223
Outstanding number of shares, Options granted	40,000
Outstanding number of shares, Options exercised	-223,862
Outstanding number of shares, Options canceled	-23,218
Outstanding number of shares, Ending	4,959,143	5,166,223
Outstanding number of shares, Options exercisable and vested	2,386,525
Outstanding number of shares, Options vested and expected to vest	4,775,924
Weighted-average exercise price per share
Weighted average exercise price per shares, Beginning	$5.32
Weighted average exercise price per shares, Options granted	$15.18
Weighted average exercise price per shares, Options exercised	$0.88
Weighted average exercise price per shares, Options canceled	$2.41
Weighted average exercise price per shares, Ending	$5.62	$5.32
Weighted average exercise price per shares, Options exercisable and vested	$1.40
Weighted average exercise price per shares, Options vested and expected to vest	$5.45
Weighted average remaining contractual life
Weighted average remaining contractual life, Beginning	7 years 7 months 6 days	7 years 9 months
Weighted average remaining contractual life, Options exercisable and vested	6 years 2 months 16 days
Weighted average remaining contractual life, Options vested and expected to vest	7 years 6 months 15 days
Aggregate intrinsic value
Aggregate intrinsic value, Beginning	$83,132
Aggregate intrinsic value, Ending	45,005	83,132
Aggregate intrinsic value, Options exercisable and vested	29,879
Aggregate intrinsic value, Options vested and excepted to vest	$44,020

StockBased_Compensation_Schedu

Stock-Based Compensation - Schedule of Assumptions Used to Calculate Fair Value of Options (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Awards Subject To Market Condition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate	1.80%
Volatility	70.00%
Expected term	6 years 6 months
Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Risk-free interest rate, Minimum		1.80%
Risk-free interest rate, Maximum		1.98%
Volatility, Minimum		66.00%
Volatility, Maximum		67.00%
Employees | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term		5 years 10 months 24 days
Employees | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term		6 years 4 months 24 days

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of Plans RSUs Activity (Details) (Restricted Stock Units (RSUs), USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Restricted Stock Units (RSUs)
Outstanding numbers of shares
Outstanding number of shares, Beginning	998,145
Outstanding number of shares, RSUs granted	343,830
Outstanding number of shares, RSUs released	-91,469
Outstanding number of shares, RSUs canceled	-48,193
Outstanding number of shares, Ending	1,202,313	998,145
Weighted-average Grant Date Fair Value
Weighted-Average Grant Date Fair Value, Beginning	$10.99
Weighted-Average Grant Date Fair Value, granted	$15.46
Weighted-Average Grant Date Fair Value, released	$10.13
Weighted-Average Grant Date Fair Value, canceled	$11.24
Weighted-Average Grant Date Fair Value, Ending	$13.06	$10.99
Weighted average remaining contractual life
Weighted average remaining contractual life, Beginning	5 years 11 months 16 days	6 years 6 months 11 days
Weighted average remaining contractual life, granted	6 years 10 months 10 days

StockBased_Compensation_Summar2

Stock-Based Compensation - Summary of Effects of Stock-Based Compensation (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$2,401	$416
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	642	102
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	709	140
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Total stock-based compensation	$1,050	$174

Net_Loss_per_Share_Schedule_of

Net Loss per Share - Schedule of Computation of Net Loss per Common Share (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Net loss	($7,144)	($767)
Weighted-average shares used in computing basic and diluted net loss per share	30,026,197	6,750,834
Basic and diluted net loss per share	($0.24)	($0.11)

Net_Loss_per_Share_Schedule_of1

Net Loss per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	6,244,678	19,752,178
Convertible preferred stock
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share		15,510,330
Convertible preferred stock warrants
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share		102,161
Employee Stock Option
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	4,959,143	4,139,687
Restricted Stock Units (RSUs)
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	1,202,313
Employee stock purchase plan (ESPP)
Earnings Per Share [Line Items]
Anti-dilutive securities that were excluded from calculation of diluted net loss per share	83,222

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
Postemployment Benefits [Abstract]
Description of Profit Sharing Plan (the Plan)	The Company established a 401(k) Profit Sharing Plan (the Plan) in 2009, pursuant to which the Company may make a discretionary contribution to the Plan each year, allocable to all plan participants. The Company is responsible for administrative expenses of the 401(k) Plan.
Percentage of employer matching contribution	25.00%
Amount of employer matching contribution	$192

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Foreign income taxes and state minimum taxes	$114,000	$45,000
Current federal tax benefit	0
Material uncertain tax positions	$0

Segment_Information_Additional

Segment Information - Additional Information (Details)	3 Months Ended
	Mar. 31, 2015
	Business
Segment Reporting [Abstract]
Number of operating business activity	1