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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2013	Jul. 31, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	QUALYS, INC.
Entity Central Index Key	0001107843
Document Type	10-Q
Document Period End Date	Jun. 30, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		31,999,805

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 68,619	$ 34,885
Short-term investments	37,758	83,547
Accounts receivable, net of allowance of $348 and $331 at June 30, 2013 and December 31, 2012, respectively	22,928	24,545
Prepaid expenses and other current assets	4,883	4,377
Total current assets	134,188	147,354
Restricted cash	0	114
Long-term investments	20,075	0
Property and equipment, net	22,526	18,148
Intangible assets, net	2,597	2,811
Goodwill	317	317
Other noncurrent assets	596	1,574
Total assets	180,299	170,318
Current liabilities:
Accounts payable	2,502	2,031
Accrued liabilities	11,410	7,803
Deferred revenues, current	58,835	56,497
Capital lease obligations, current	1,058	1,183
Total current liabilities	73,805	67,514
Deferred revenues, noncurrent	8,823	8,616
Income taxes payable, noncurrent	635	594
Other noncurrent liabilities	523	1,231
Capital lease obligations, noncurrent	278	808
Total liabilities	84,064	78,763
Commitments and contingencies (Note 5)
Stockholders’ equity:
Preferred stock, $0.001 par value; 20,000,000 shares authorized, no shares issued and outstanding at June 30, 2013 and December 31, 2012	0	0
Common stock, $0.001 par value; 1,000,000,000 shares authorized, 31,988,384 and 31,420,028 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	32	31
Additional paid-in capital	171,144	166,651
Accumulated other comprehensive loss	(1,119)	(1,035)
Accumulated deficit	(73,822)	(74,092)
Total stockholders’ equity	96,235	91,555
Total liabilities and stockholders’ equity	$ 180,299	$ 170,318

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Allowance for Doubtful Accounts Receivable	$ 348	$ 331
Preferred Stock, Par or Stated Value Per Share (USD per share)	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share (USD per share)	$ 0.001	$ 0.001
Common Stock, Shares Authorized	1,000,000,000	1,000,000,000
Common Stock, Shares Issued	31,988,384	31,420,028
Common Stock, Shares Outstanding	31,988,384	31,420,028

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenues [Abstract]
Revenues	$ 26,291	$ 22,190	$ 51,174	$ 43,381
Cost of revenues	5,924	4,629	11,719	8,789
Gross profit	20,367	17,561	39,455	34,592
Operating expenses:
Research and development	5,291	5,148	10,588	10,249
Sales and marketing	10,160	9,784	20,328	19,030
General and administrative	4,053	2,843	7,949	5,657
Total operating expenses	19,504	17,775	38,865	34,936
Income (loss) from operations	863	(214)	590	(344)
Other income (expense), net:
Interest expense	(12)	(50)	(30)	(115)
Interest income	81	1	158	1
Other income (expense), net	33	(92)	(286)	(104)
Total other income (expense), net	102	(141)	(158)	(218)
Income (loss) before provision for (benefit from) income taxes	965	(355)	432	(562)
Provision for (benefit from) income taxes	92	(78)	162	0
Net income (loss)	873	(277)	270	(562)
Net income (loss) attributable to common stockholders	$ 872	$ (277)	$ 270	$ (562)
Net income (loss) per share attributable to common stockholders:
Basic (USD per share)	$ 0.03	$ (0.05)	$ 0.01	$ (0.10)
Diluted (USD per share)	$ 0.02	$ (0.05)	$ 0.01	$ (0.10)
Weighted average shares used in computing net income (loss) per share attributable to common stockholders:
Basic (shares)	31,777	5,515	31,636	5,392
Diluted (shares)	35,393	5,515	35,353	5,392

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net income (loss)	$ 873	$ (277)	$ 270	$ (562)
Change in foreign currency translation gain (loss), net of zero tax	(51)	(30)	(61)	(58)
Available-for-sale investments:
Change in net unrealized gain (loss) on investments, net of zero tax	(15)	0	(15)	0
Less: reclassification adjustment for net gain (loss) included in net income (loss)	(2)	0	(8)	0
Net change, net of zero tax	(17)	0	(23)	0
Other comprehensive loss, net	(68)	(30)	(84)	(58)
Comprehensive income (loss)	$ 805	$ (307)	$ 186	$ (620)

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Amount after tax, before reclassification adjustments, resulting from the process of expressing in the reporting currency of the reporting entity those amounts that are denominated or measured in a different currency, and from transactions whose terms are denominated in a currency other than the entity's functional currency.

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- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

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- Definition

Net of tax amount of unrealized holding gain (loss) before reclassification adjustments and transfers on available-for-sale securities.

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+ Details

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Change in foreign currency translation gain (loss), tax	$ 0	$ 0	$ 0	$ 0
Change in net unrealized gain (loss) on investments, tax	0	0	0	0
Net change, tax	$ 0	$ 0	$ 0	$ 0

- Definition

Amount of tax effect, net of reclassification adjustments, on the result from the process of expressing in the reporting currency of the reporting entity those amounts that are denominated or measured in a different currency.

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+ Details

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income (loss)	$ 270	$ (562)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization expense	4,493	3,546
Bad debt expense	68	68
Loss on disposal of property and equipment	9	6
Stock-based compensation	2,187	1,556
Non-cash interest expense	0	18
Amortization of premiums on investments	(115)	0
Changes in operating assets and liabilities:
Accounts receivable	1,549	2,339
Prepaid expenses and other assets	429	(1,273)
Accounts payable	477	1,063
Accrued liabilities	1,170	485
Deferred revenues	2,545	3,078
Other noncurrent liabilities	(442)	(301)
Net cash provided by operating activities	12,870	10,023
Cash flows from investing activities:
Purchases of investments	(75,048)	0
Sales and maturities of investments	100,624	0
Purchases of property and equipment	(6,238)	(5,989)
Release of restricted cash	114	0
Net cash provided by (used in) investing activities	19,452	(5,989)
Cash flows from financing activities:
Proceeds from exercise of stock options	2,163	1,200
Principal payments under capital lease obligations	(655)	(1,261)
Net cash provided by (used in) financing activities	1,508	(61)
Effect of exchange rate changes on cash and cash equivalents	(96)	(62)
Net increase in cash and cash equivalents	33,734	3,911
Cash and cash equivalents at beginning of period	34,885	24,548
Cash and cash equivalents at end of period	68,619	28,459
Non-cash investing and financing activities:
Vesting of early exercised common stock options	144	54
Purchases of property and equipment included in accrued liabilities	$ 2,450	$ 0

The Company and Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2013
Accounting Policies [Abstract]
The Company and Summary of Significant Accounting Policies	The Company and Summary of Significant Accounting Policies Description of Business Qualys, Inc. (the “Company”) was incorporated in the state of Delaware on December 30, 1999. The Company is headquartered in Redwood City, California and has majority-owned subsidiaries throughout the world. The Company is a pioneer and leading provider of cloud security and compliance solutions that enable organizations to identify security risks to their IT infrastructures, help protect their IT systems and applications from ever-evolving cyber attacks and achieve compliance with internal policies and external regulations. The Company’s cloud solutions address the growing security and compliance complexities and risks that are amplified by the dissolving boundaries between internal and external IT infrastructures and web environments, the rapid adoption of cloud computing and the proliferation of geographically dispersed IT assets. Organizations can use the Company’s integrated suite of solutions delivered on its QualysGuard Cloud Platform to cost-effectively obtain a unified view of their security and compliance posture across globally-distributed IT infrastructures. Basis of Presentation The accompanying unaudited condensed consolidated financial statements and condensed footnotes have been prepared by the Company in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") for interim financial information as well as the instructions to Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The condensed consolidated balance sheet as of December 31, 2012, included herein, was derived from the audited financial statements as of that date but does not include all disclosures, including notes required by U.S. GAAP. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the financial position, results of operations and cash flows for the interim periods. The results of operations for the three and six month periods ended June 30, 2013 is not necessarily indicative of the results of operations expected for the entire year ending December 31, 2013 or for any other future annual or interim period. 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 year ended December 31, 2012 filed with the SEC on March 5, 2013. Certain prior year amounts have been reclassified to conform to the current year presentation. These reclassifications did not change previously reported total assets, liabilities, stockholders' equity, income (loss) from operations or net income (loss). Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of the Company and its majority owned subsidiaries. All significant intercompany transactions and balances have been eliminated upon consolidation. Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported results of operations during the reporting period. The Company’s management regularly assesses these estimates, which primarily affect revenue recognition, the valuation of accounts receivable, goodwill and intangible assets, common stock, stock-based compensation and the valuation allowances associated with deferred tax assets. Actual results could differ from those estimates and such differences may be material to the accompanying condensed consolidated financial statements. Concentration of Credit Risk The Company invests its cash, cash equivalents and investments with major financial institutions. Cash balances with any one institution at times may be in excess of federally insured limits. Cash equivalents and investments are invested in high-quality investment grade financial instruments and are diversified. The Company has not experienced any other-than-temporary losses in such accounts and believes it is not exposed to any significant credit risk. Credit risk with respect to accounts receivable is dispersed due to the large number of customers. In addition, the Company’s credit risk is mitigated by the relatively short collection period. Collateral is not required for accounts receivable. The Company maintains an allowance for potential credit losses based upon the expected collectability of accounts receivable. The Company writes off its receivables when collectability is deemed to be doubtful. As of June 30, 2013 and December 31, 2012, no customer or channel partner accounted for more than 10% of the Company's accounts receivable balance. Cash, Cash Equivalents, Short-Term and Long-Term Investments Cash and cash equivalents include cash held in banks and highly liquid money market funds, commercial paper and corporate bonds, all with original maturities of three months or less when acquired. The Company’s investments consist of fixed-income U.S. government agency securities, corporate bonds, municipal bonds, asset-backed securities and commercial paper. Management determines the appropriate classification of the Company's investments at the time of purchase and reevaluates such designation at each balance sheet date. The Company classifies its investments as either short-term or long-term based on each instrument's underlying contractual maturity date. Cash is stated at cost, which approximates fair market value. Cash equivalents and short-term and long-term investments are classified as available-for-sale and are carried at fair value. Unrealized gains and losses in fair value are reported in other comprehensive income (loss). When the available-for-sale securities are sold, cost is based on the specific identification method, and the realized gains and losses are included in other income (expense) in the condensed consolidated statements of operations. Short-term and long-term investments are reviewed quarterly for impairment that is deemed to be other-than-temporary. An investment is considered other-than-temporarily impaired when its fair value is below its amortized cost and (1) there is an intent to sell the security, (2) it is “more likely than not” that the security will be sold before recovery of its amortized cost basis or (3) the present value of expected cash flows from the investment is not expected to recover the entire amortized cost basis. Declines in value that are considered to be other-than-temporary and adjustments to amortized cost for the amortization of premiums and the accretion of discounts are recorded in other income (expense). Interest and dividends are recorded in interest income as earned. Recent Accounting Pronouncements Under the Jumpstart Our Business Startups Act (the "JOBS Act"), the Company meets the definition of an “emerging growth company.” The Company has irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. As a result, the Company will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required from non-emerging growth companies. In February 2013, the FASB issued an update to ASC 220: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. Under this update, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (”AOCI”) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. The Company adopted this standard in the first quarter of 2013, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements. Amounts reclassified out of AOCI are recorded in interest income on the condensed consolidated statements of operations. In July 2013, the FASB issued ASU 2013-11: Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This update provides guidance on the financial statement presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. An unrecognized tax benefit should be presented as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward when settlement in this manner is available under the tax law. The Company will adopt this amendment as of January 2014. The result of adoption may be to offset certain long-term liabilities to long-term deferred tax assets and the adoption will not result in a change to the tax provision. The Company does not believe that the impact on the balance sheet will be significant.

Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. For certain of the Company’s financial instruments, including cash and certain cash equivalents, accounts receivable, restricted cash, accounts payable, and other current liabilities, the carrying amounts approximate their fair value due to the relatively short maturity of these balances.

The Company measures and reports certain cash equivalents, investments and derivative forward currency contracts at fair value in accordance with the provisions of the authoritative accounting guidance that addresses fair value measurements. This guidance 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. The hierarchy is broken down into three levels based on the reliability of inputs as follows:

Level 1—Valuations based on quoted prices in active markets for identical assets or liabilities.

Level 2—Valuations based on other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3—Valuations based on inputs that are generally unobservable and typically reflect management’s estimates of assumptions that market participants would use in pricing the asset or liability.

The Company's financial instruments consist of assets measured using Level 1 and 2 inputs. Level 1 assets include a highly liquid money market fund, which is valued using unadjusted quoted prices that are available in an active market for an identical asset. Level 2 assets include fixed-income U.S. government agency securities, commercial paper, corporate bonds, municipal bonds and asset backed securities and derivative financial instruments consisting of forward currency contracts. The securities, bonds and commercial paper are valued using prices from independent pricing services based on quoted prices in active markets for similar instruments or on industry models using data inputs such as interest rates and prices that can be directly observed or corroborated in active markets. The foreign currency forward contracts are valued using observable inputs.

The Company's cash and cash equivalents, short-term investments, long-term investments and restricted cash consist of the following:



	June 30, 2013
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
Cash and cash equivalents:
Cash	$	26,338	$	—	$	—		$	26,338
Money market funds	22,972		—		—			22,972
Commercial paper	17,596		1		—			17,597
Corporate bonds	1,714		—		(2		)	1,712
Total	68,620		1		(2		)	68,619
Short-term investments:
Commercial paper	28,255		13		—			28,268
Corporate bonds	8,341		2		(7		)	8,336
Municipal bonds	1,154		—		—			1,154
Total	37,750		15		(7		)	37,758
Long-term investments:
Asset-backed securities	1,000		—		(4		)	996
U.S. government agencies	4,724		1		—			4,725
Corporate bonds	14,373		4		(23		)	14,354
Total	20,097		5		(27		)	20,075
Total	$	126,467	$	21	$	(36	)	$	126,452



	December 31, 2012
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash and cash equivalents:
Cash	$	23,419	$	—	$	—	$	23,419
Money market funds	170		—		—		170
Commercial paper	11,294		2		—		11,296
Total	34,883		2		—		34,885
Short-term investments:
Commercial paper	21,078		2		—		21,080
U.S. government agencies	62,463		4		—		62,467
Total	83,541		6		—		83,547
Restricted cash - cash	114		—		—		114
Total	$	118,538	$	8	$	—	$	118,546

The following table sets forth by level within the fair value hierarchy the fair value of the Company's available-for-sale securities measured on a recurring basis:



	June 30, 2013
	Level 1		Level 2		Level 3		Fair Value
	(in thousands)
Commercial paper	$	—	$	45,865	$	—	$	45,865
U.S. government agencies	—		4,725		—		4,725
Municipal bonds	—		1,154		—		1,154
Corporate bonds	—		24,402		—		24,402
Asset-backed securities	—		996		—		996
Total	$	—	$	77,142	$	—	$	77,142



	December 31, 2012
	Level 1		Level 2		Level 3		Fair Value
	(in thousands)
Commercial paper	$	—	$	32,376	$	—	$	32,376
U.S. government agencies	—		62,467		—		62,467
Total	$	—	$	94,843	$	—	$	94,843

The following summarizes the fair value of securities classified as available-for-sale by contractual maturity:



	June 30, 2013
	Mature within One Year		After One Year through Two Years		Over Two Years		Fair Value
	(in thousands)
Commercial paper	$	45,865	$	—	$	—	$	45,865
U.S. government agencies	—		4,725		—		4,725
Municipal bonds	1,154		—		—		1,154
Corporate bonds	10,048		14,354		—		24,402
Asset-backed securities	—		—		996		996
Total	$	57,067	$	19,079	$	996	$	77,142



	December 31, 2012
	Mature within One Year		After One Year through Two Years		Over Two Years		Fair Value
	(in thousands)
Commercial paper	$	32,376	$	—	$	—	$	32,376
U.S. government agencies	62,467		—		—		62,467
Total	$	94,843	$	—	$	—	$	94,843

Derivative Financial Instruments

Derivative financial instruments are utilized by the Company to reduce foreign currency exchange risks. The Company uses foreign currency forward contracts to mitigate the impact of foreign currency fluctuations of certain non-U.S. dollar denominated asset positions, primarily cash and accounts receivable. These contracts are recorded within prepaid expenses and other current assets in the condensed consolidated balance sheets. Gains and losses resulting from currency exchange rate movements on these forward contracts are recognized in other income (expense) in the accompanying condensed consolidated statements of operations in the period in which the exchange rates change and offset the foreign currency gains and losses on the underlying exposure being hedged. The Company does not enter into derivative financial instruments for trading or speculative purposes.

At June 30, 2013, the Company had two outstanding forward contracts with notional amounts of 5.9 million Euros and 2.5 million British pounds, both of which expired on July 31, 2013. At December 31, 2012, the Company had one outstanding forward contract with a notional amount of 10.7 million Euros, which expired on January 31, 2013. These forward contracts were entered into at the end of each month, and thus the fair value of these contracts were $0 at June 30, 2013 and December 31, 2012. The Company recorded losses of $0.1 million and $0.2 million from these contracts for the three and six months ended June 30, 2013, respectively. These were partially offset by foreign currency transaction gains of $31,000 for the three months ended June 30, 2013 and in addition to other foreign currency transaction losses of $0.2 million for the six months ended June 30, 2013. The company recorded gains of $0.5 million and $0.3 million from these contracts for the three and six months ended June 30, 2012, respectively. These were offset by foreign currency transaction losses of $0.6 million and $0.4 million for the three and six months ended June 30, 2012, respectively. These derivatives did not meet the criteria to be designated as hedges. These instruments were valued using Level 2 inputs.

There were no significant transfers between Level 1, Level 2 or Level 3 of the fair value hierarchy, as determined at the end of each reporting period.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 30
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13504-108611

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 159
-Paragraph 17-22, 27, 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-Subparagraph a-d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15C, 15D
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32, 33, 34
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Property and Equipment, Net

6 Months Ended

Jun. 30, 2013

Property, Plant and Equipment [Abstract]

Property and Equipment, Net

Property and equipment, which includes assets under capital lease, consists of the following:



	June 30,			December 31,
	2013			2012
	(in thousands)
Computer equipment	$	23,419		$	18,798
Computer software	9,129			6,327
Furniture, fixtures and equipment	1,714			1,545
Scanner appliances	16,878			16,470
Leasehold improvements	1,726			1,672
Total property and equipment	52,866			44,812
Less: accumulated depreciation and amortization	(30,340		)	(26,664		)
Property and equipment, net	$	22,526		$	18,148

Assets held under capital lease included in computer software at June 30, 2013 and December 31, 2012 totaled approximately $3.8 million. The related accumulated depreciation at June 30, 2013 and December 31, 2012 totaled $1.6 million and $1.2 million, respectively. The capital lease obligations are secured by the related software.

Physical scanner appliances and other computer equipment that are or will be subject to subscriptions by customers have a net carrying value of $5.2 million and $5.5 million at June 30, 2013 and December 31, 2012, respectively, including assets that have not been placed in service of $1.4 million and $1.5 million, respectively. Other fixed assets not placed in service at June 30, 2013 and December 31, 2012, included in computer equipment and leasehold improvements, relate to new information technology systems and tenant improvements of approximately $0.9 million and $1.7 million, respectively. Depreciation and amortization expense relating to property and equipment, including capitalized leases, was $2.3 million and $1.7 million for three months ended June 30, 2013 and 2012, respectively and $4.3 million and $3.3 million for the six months ended June 30, 2013 and 2012, respectively.

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Goodwill and Intangible Assets, Net

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets, Net

Intangible assets consist primarily of existing technology, patent license and non-competition agreements acquired in business combinations. Acquired intangibles are amortized on a straight-line basis over the respective estimated useful lives of the assets.

The carrying values of intangible assets are as follows (in thousands):



				June 30, 2013					December 31, 2012
	Estimated Lives	Cost		Accumulated Amortization			Net Book Value		Accumulated Amortization			Net Book Value
Existing technology	7 years	$	1,910	(773		)	$	1,137	$	(637	)	$	1,273
Patent license	14 years	1,388		(273		)	1,115		(223		)	1,165
Non-competition agreements and other	3 years	171		(121		)	50		(93		)	78
Total intangibles subject to amortization		$	3,469	$	(1,167	)	2,302		$	(953	)	2,516
Intangible assets not subject to amortization							295					295
Total intangible assets, net							$	2,597				$	2,811

Intangibles amortization expense was $0.1 million for the three months ended June 30, 2013 and 2012, and $0.2 million for the six months ended June 30, 2013 and 2012.

As of June 30, 2013, the Company expects amortization expense in future periods to be as follows (in thousands):



Remainder of 2013	$	203
2014	392
2015	385
2016	372
2017	281
2018 and thereafter	669
Total expected future amortization expense	$	2,302

Goodwill, which is not subject to amortization, totaled $0.3 million as of June 30, 2013 and December 31, 2012.

- Definition

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

+ References + Details

Commitments and Contingencies

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Leases

The Company leases certain computer equipment and its corporate office and data center facilities under noncancelable operating leases for varying periods through 2022. The Company has also entered into capital lease obligations, with varying interest rates from 1.8% to 4.0%, a portion of which are secured by the related computer equipment and software as of June 30, 2013 and December 31, 2012.

In 2011, the Company entered into a $3.1 million financing arrangement for computer software, accounted for as a capital lease, with minimum quarterly payments scheduled through 2014. In connection with this transaction, the Company also has minimum obligations for related maintenance and support, which was amended in June 2013. The minimum obligations were $1.5 million and $1.6 million at June 30, 2013 and December 31, 2012, respectively. Such obligations for maintenance and support are recorded in current liabilities in the condensed consolidated balance sheets at June 30, 2013 and current and noncurrent liabilities at December 31, 2012.

The following are the minimum annual lease payments due under these leases at June 30, 2013:



	Operating Leases		Capital Leases
	(in thousands)
Remainder of 2013	$	1,928	$	538
2014	3,263		815
2015	2,253		—
2016	1,634		—
2017	1,466		—
2018 and thereafter	185		—
Total minimum lease payments	$	10,729	1,353
Less amount representing interest			(17		)
Present value of minimum payments			1,336
Less current portion			(1,058		)
Capital lease obligations, noncurrent			$	278

Rent expense was $1.4 million and $1.0 million for the three months ended June 30, 2013 and 2012, respectively, and $2.7 million and $2.1 million for the six months ended June 30, 2013 and 2012, respectively. Although certain of the operating lease agreements provide for escalating rent payments over the terms of the leases, rent expense under these agreements is recognized on a straight-line basis. As of June 30, 2013 and December 31, 2012, the Company has accrued $0.5 million of deferred rent related to these agreements, which is reflected in other noncurrent liabilities in the accompanying condensed consolidated balance sheets.

Sales and Other Taxes

The Company’s software-as-a-service solutions are subject to sales and other taxes in certain jurisdictions where the Company does business. The Company bills sales and other taxes to customers and remits these amounts to the respective government authorities. For those jurisdictions where the Company has not yet billed sales tax to its customers and believes it is probable it may have exposure and can reasonably estimate such exposure, it has recorded a liability of $0.4 million at June 30, 2013 and December 31, 2012, which is recorded within accrued liabilities in the condensed consolidated balance sheets. However, taxing jurisdictions have differing rules and regulations, which are subject to varying interpretations that may change over time. Other than the liability that the Company has accrued in its condensed consolidated balance sheets, the Company has been unable to assess the probability, or estimate the amount, of its sales tax exposure, if any. There are no pending reviews at June 30, 2013 of which the outcome is expected to result in sales and other taxes due in excess of accrued liabilities. Management does not anticipate that its sales tax exposure, if any, would have a material adverse effect on the financial position, results of operations or cash flows of the Company.

Indemnifications

The Company from time to time enters into certain types of contracts that contingently require it to indemnify various parties against claims from third parties. These contracts primarily relate to (i) the Company's by-laws, under which it must indemnify directors and executive officers, and may indemnify other officers and employees, for liabilities arising out of their relationship, (ii) contracts under which the Company must indemnify directors and certain officers for liabilities arising out of their relationship, and (iii) contracts under which the Company may be required to indemnify customers or resellers from certain liabilities arising from potential infringement of intellectual property rights, as well as potential damages caused by limited product defects. To date, the Company has not incurred and has not recorded any liability in connection with such indemnifications.

The Company maintains director and officer insurance, which may cover certain liabilities arising from its obligation to indemnify its directors.

Contingencies

From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of its business activities. The Company accrues a liability for such matters when it is probable a loss has been incurred and such loss can be reasonably estimated. At June 30, 2013, other than an accrual for sales and other taxes, the Company has not recorded any material liabilities in accordance with accounting for contingencies.

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 8
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9, 10, 11, 12
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation

6 Months Ended

Jun. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Stock Options

2012 Equity Incentive Plan

The 2012 Equity Incentive Plan (the "2012 Plan") was adopted and approved in September 2012 and became effective on September 26, 2012. Under the 2012 Plan, the Company is authorized to grant to eligible participants incentive stock options (“ISOs”), nonstatutory stock options (“NSOs”), stock appreciation rights ("SARs"), restricted stock awards ("RSAs"), restricted stock units ("RSUs"), performance units and performance shares equivalent to up to 3,050,000 shares of common stock. The number of shares of common stock available for issuance under the 2012 Plan includes an annual increase on January 1 of each year starting on January 1, 2014 by an amount equal to the least of 3,050,000 shares; 5% of the outstanding shares of stock as of the last day of the immediately preceding fiscal year; or an amount determined by the board of directors. Options may be granted with an exercise price that is at least equal to the fair market value of the Company's stock at the date of grant and are exercisable when vested. Options granted generally vest over a period of up to four years, with a maximum term of ten years. ISOs may only be granted to employees and any subsidiary corporations' employees. All other awards may be granted to employees, directors and consultants and subsidiary corporations' employees and consultants. Options, SARs, RSAs, RSUs, performance units and performance awards may be granted with vesting terms as determined by the board of directors and expire no more than ten years after the date of grant or earlier if employment or service is terminated. As of June 30, 2013, 1,948,350 shares were available for grant under the 2012 Plan.

2000 Equity Incentive Plan

Under the 2000 Equity Incentive Plan (the "2000 Plan"), the Company was authorized to grant to eligible participants either ISOs or NSOs. The ISOs were granted at a price per share not less than the fair market value at the date of grant. The NSOs were granted at a price per share not less than 85% of the fair market value at the date of grant. Options granted generally vest over a period of up to four years, with a maximum term of ten years. The 2000 Plan was terminated in connection with the closing of the initial public offering ("IPO"), and accordingly, no shares are currently available for issuance under the 2000 Plan. The 2000 Plan continues to govern outstanding awards granted thereunder.

Options granted under the 2000 Plan were immediately exercisable, and unvested shares are subject to repurchase by the Company. Upon termination of employment of an option holder, the Company has the right to repurchase at the original purchase price any issued but unvested common shares. As of June 30, 2013 and December 31, 2012, there were 29,838 and 47,220 shares, respectively, that were subject to the Company’s right to repurchase. There were no shares repurchased during the three and six months ended June 30, 2013. The Company repurchased 126 and 60,126 unvested common shares in the three and six months ended June 30, 2012, respectively. The amounts paid for these shares purchased under an early exercise of stock options are not reported as a component of stockholders’ equity until those shares vest. The amounts received in exchange for these shares totaled $0.2 million and $0.3 million as of June 30, 2013 and December 31, 2012, respectively, have been recorded as an accrued liability in the accompanying condensed consolidated balance sheets and will be reclassified to common stock and additional paid-in capital as the shares vest.

Stock-based employee compensation is included in the condensed consolidated statements of operations as follows:



	Three Months Ended				Six months ended
	June 30,				June 30,
	2013		2012		2013		2012
	(in thousands)
Cost of revenues	$	101	$	69	$	194	$	123
Research and development	226		155		434		294
Sales and marketing	158		265		441		440
General and administrative	457		237		792		479
Total stock-based employee compensation	$	942	$	726	$	1,861	$	1,336

Compensation cost is recognized on a straight-line basis over the service period. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.

As of June 30, 2013 and December 31, 2012, the Company had $8.0 million and $5.8 million, respectively, of total unrecognized employee compensation cost related to nonvested awards that it expects to recognize over a weighted-average period of 2 years.

The fair value of each option granted to employees is estimated on the date of grant using the Black-Scholes option-pricing model based on the following assumptions:



	Three Months Ended		Six months ended
	June 30,		June 30,
	2013	2012	2013	2012
Expected term (in years)	5.4 to 6.1	5.3 to 6.0	5.4 to 6.1	5.3 to 6.0
Volatility	52%	53%	52% to 53%	53%
Risk-free interest rate	0.7% to 1.1%	0.7% to 0.8%	0.7% to 1.1%	0.7% to 0.9%
Dividend yield	—	—	—	—

The expected term of the options is based on evaluations of historical and expected future employee exercise behavior. The risk-free interest rate is based on the U.S. Treasury rates at the date of grant with maturity dates approximately equal to the expected term at the grant date. Volatility is based on historical volatility of several public entities that are similar to the Company, as the Company does not have sufficient historical transactions in its own shares on which to base expected volatility. The Company has not historically issued any dividends and does not expect to in the future.

The Company records compensation representing the fair value of stock options granted to non-employees. Stock-based non-employee compensation was $0.3 million and $0.1 million for the three months ended June 30, 2013 and 2012, respectively, and $0.3 million and $0.2 million for the six months ended June 30, 2013 and 2012, respectively. Non-employee stock-based compensation is recognized over the vesting periods of the options. The value of options granted to non-employees is remeasured as they vest over a performance period.

A summary of the Company’s stock option activity is as follows:



	Outstanding Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
						(in thousands)
Balance as of December 31, 2012	6,513,508		$	4.39	6.6	$	67,711
Granted	1,024,250		12.07
Exercised	(566,456	)	3.89
Canceled	(229,619	)	8.65
Balance as of June 30, 2013	6,741,683		5.46		6.7	71,877
Vested and expected to vest - June 30, 2013	6,068,632		5.03		6.5	67,298
Exercisable - June 30, 2013	5,667,591		4.17		6.3	60,426

Restricted Stock

The terms and conditions of RSAs, including vesting criteria and timing are set by the board of directors. The cost of RSAs is determined using the fair value of the Company’s common stock on the date of the grant. Compensation cost is recognized on a straight-line basis over the requisite service period of each grant adjusted for estimated forfeitures. Recipients of RSAs generally have voting and dividend rights without regard to vesting. The Company has the right to repurchase shares that do not vest.

During the three months ended June 30, 2013 and 2012, the Company granted 1,900 and 2,750 shares of restricted stock, respectively, which vested immediately and had no further restrictions or service period, and resulted in compensation expense of $20,000 and $32,000 for the three months ended June 30, 2013 and 2012, respectively. The Company did not issue restricted stock during the first quarters of 2013 or 2012.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Other Income (Expense), Net

6 Months Ended

Jun. 30, 2013

Other Income and Expenses [Abstract]

Other Income (Expense), Net

Other income (expense), net consists of the following:



	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
	(in thousands)
Foreign exchange gains (losses), net	$	(116	)	$	(91	)	$	(414	)	$	(95	)
Other income (expense)	149			(1		)	128			(9		)
Other income (expense), net	$	33		$	(92	)	$	(286	)	$	(104	)

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes for the six months ended June 30, 2013 and 2012 primarily reflects the provision for income taxes for foreign taxes and certain discrete items. As of June 30, 2013, the Company had unrecognized tax benefits of $3.1 million, of which $1.0 million, if recognized and in absence of a valuation allowance, would favorably impact the Company's effective tax rate. As of December 31, 2012, the Company had unrecognized tax benefits of $2.6 million, of which $1.0 million, if recognized and in absence of valuation allowance, would favorably impact the Company's effective tax rate.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section 50
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Segment Information and Information about Geographic Area

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Segment Information and Information about Geographic Area

The Company operates in one segment. The Company’s chief operating decision maker (“CODM”) is the Chairman, President and Chief Executive Officer, who makes operating decisions, assesses performance and allocates resources on a consolidated basis. All of the Company’s principal operations and decision-making functions are located in the United States. Revenues by geographic area, based on the location of the customer, are as follows:



	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
	(in thousands)
United States	$	18,434	$	14,809	$	35,807	$	29,021
Other	7,857		7,381		15,367		14,360
Total revenues	$	26,291	$	22,190	$	51,174	$	43,381

As of June 30, 2013 and December 31, 2012, property and equipment located outside the United States were not material.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8981-108599

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Net Income (Loss) Per Share Attributable to Common Stockholders

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Net Income (Loss) Per Share Attributable to Common Stockholders

The computations for basic and diluted net income (loss) per share attributable to common stockholders are as follows:



	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013		2012
	(in thousands)
Numerator:
Net income (loss)	$	873		$	(277	)	$	270	$	(562	)
Net income attributable to participating securities	(1		)	—			—		—
Net income (loss) attributable to common stockholders - basic	872			(277		)	270		(562		)
Undistributed earnings reallocated to participating securities	—			—			—		—
Net income (loss) attributable to common stockholders - diluted	$	872		$	(277	)	$	270	$	(562	)
Denominator:
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders - basic	31,777			5,515			31,636		5,392
Effect of potentially dilutive securities:
Common stock options	3,616			—			3,717		—
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders - diluted	35,393			5,515			35,353		5,392
Net income (loss) per share attributable to common stockholders
Basic	$	0.03		$	(0.05	)	$	0.01	$	(0.10	)
Diluted	$	0.02		$	(0.05	)	$	0.01	$	(0.10	)

The following shares were excluded in the calculation of diluted net income (loss) per share because their inclusion would have been anti-dilutive:



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2013	2012	2013	2012
	(in thousands)
Convertible preferred stock	—	17,597	—	17,597
Common stock options	989	6,539	756	6,466
Contingently issuable shares related to an acquisition	—	4	—	8
	989	24,140	756	24,071

All of the convertible preferred stock automatically converted to common stock on a 1-for-1 basis in connection with the consummation of the Company's initial public offering. For the three and six months ended June 30, 2012, the amounts presented in the table above were the weighted average shares of common stock underlying outstanding shares of convertible preferred stock.

The Company and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2013
Accounting Policies [Abstract]
Description of business	Description of Business Qualys, Inc. (the “Company”) was incorporated in the state of Delaware on December 30, 1999. The Company is headquartered in Redwood City, California and has majority-owned subsidiaries throughout the world. The Company is a pioneer and leading provider of cloud security and compliance solutions that enable organizations to identify security risks to their IT infrastructures, help protect their IT systems and applications from ever-evolving cyber attacks and achieve compliance with internal policies and external regulations. The Company’s cloud solutions address the growing security and compliance complexities and risks that are amplified by the dissolving boundaries between internal and external IT infrastructures and web environments, the rapid adoption of cloud computing and the proliferation of geographically dispersed IT assets. Organizations can use the Company’s integrated suite of solutions delivered on its QualysGuard Cloud Platform to cost-effectively obtain a unified view of their security and compliance posture across globally-distributed IT infrastructures.
Basis of presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements and condensed footnotes have been prepared by the Company in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") for interim financial information as well as the instructions to Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission ("SEC"). Certain information and note disclosures normally included in the financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The condensed consolidated balance sheet as of December 31, 2012, included herein, was derived from the audited financial statements as of that date but does not include all disclosures, including notes required by U.S. GAAP. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the financial position, results of operations and cash flows for the interim periods. The results of operations for the three and six month periods ended June 30, 2013 is not necessarily indicative of the results of operations expected for the entire year ending December 31, 2013 or for any other future annual or interim period. 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 year ended December 31, 2012 filed with the SEC on March 5, 2013. Certain prior year amounts have been reclassified to conform to the current year presentation. These reclassifications did not change previously reported total assets, liabilities, stockholders' equity, income (loss) from operations or net income (loss).
Principles of consolidation	Principles of Consolidation The accompanying condensed consolidated financial statements include the accounts of the Company and its majority owned subsidiaries. All significant intercompany transactions and balances have been eliminated upon consolidation.
Use of estimates	Use of Estimates The preparation of the condensed consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported results of operations during the reporting period. The Company’s management regularly assesses these estimates, which primarily affect revenue recognition, the valuation of accounts receivable, goodwill and intangible assets, common stock, stock-based compensation and the valuation allowances associated with deferred tax assets. Actual results could differ from those estimates and such differences may be material to the accompanying condensed consolidated financial statements.
Concentration of credit risk	Concentration of Credit Risk The Company invests its cash, cash equivalents and investments with major financial institutions. Cash balances with any one institution at times may be in excess of federally insured limits. Cash equivalents and investments are invested in high-quality investment grade financial instruments and are diversified. The Company has not experienced any other-than-temporary losses in such accounts and believes it is not exposed to any significant credit risk. Credit risk with respect to accounts receivable is dispersed due to the large number of customers. In addition, the Company’s credit risk is mitigated by the relatively short collection period. Collateral is not required for accounts receivable. The Company maintains an allowance for potential credit losses based upon the expected collectability of accounts receivable. The Company writes off its receivables when collectability is deemed to be doubtful. As of June 30, 2013 and December 31, 2012, no customer or channel partner accounted for more than 10% of the Company's accounts receivable balance.
Cash, cash equivalents, short-term and long-term investments	Cash, Cash Equivalents, Short-Term and Long-Term Investments Cash and cash equivalents include cash held in banks and highly liquid money market funds, commercial paper and corporate bonds, all with original maturities of three months or less when acquired. The Company’s investments consist of fixed-income U.S. government agency securities, corporate bonds, municipal bonds, asset-backed securities and commercial paper. Management determines the appropriate classification of the Company's investments at the time of purchase and reevaluates such designation at each balance sheet date. The Company classifies its investments as either short-term or long-term based on each instrument's underlying contractual maturity date. Cash is stated at cost, which approximates fair market value. Cash equivalents and short-term and long-term investments are classified as available-for-sale and are carried at fair value. Unrealized gains and losses in fair value are reported in other comprehensive income (loss). When the available-for-sale securities are sold, cost is based on the specific identification method, and the realized gains and losses are included in other income (expense) in the condensed consolidated statements of operations. Short-term and long-term investments are reviewed quarterly for impairment that is deemed to be other-than-temporary. An investment is considered other-than-temporarily impaired when its fair value is below its amortized cost and (1) there is an intent to sell the security, (2) it is “more likely than not” that the security will be sold before recovery of its amortized cost basis or (3) the present value of expected cash flows from the investment is not expected to recover the entire amortized cost basis. Declines in value that are considered to be other-than-temporary and adjustments to amortized cost for the amortization of premiums and the accretion of discounts are recorded in other income (expense). Interest and dividends are recorded in interest income as earned.
Recent accounting pronouncements	Recent Accounting Pronouncements Under the Jumpstart Our Business Startups Act (the "JOBS Act"), the Company meets the definition of an “emerging growth company.” The Company has irrevocably elected to opt out of the extended transition period for complying with new or revised accounting standards pursuant to Section 107(b) of the JOBS Act. As a result, the Company will comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required from non-emerging growth companies. In February 2013, the FASB issued an update to ASC 220: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. Under this update, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (”AOCI”) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. The Company adopted this standard in the first quarter of 2013, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements. Amounts reclassified out of AOCI are recorded in interest income on the condensed consolidated statements of operations. In July 2013, the FASB issued ASU 2013-11: Presentation of an Unrecognized Tax Benefit when a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This update provides guidance on the financial statement presentation of unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. An unrecognized tax benefit should be presented as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward when settlement in this manner is available under the tax law. The Company will adopt this amendment as of January 2014. The result of adoption may be to offset certain long-term liabilities to long-term deferred tax assets and the adoption will not result in a change to the tax provision. The Company does not believe that the impact on the balance sheet will be significant.

- Definition

Disclosure of accounting policy for credit risk.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 55
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6875567&loc=d3e14489-108613

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 944
-SubTopic 825
-Section 55
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6487554&loc=d3e32600-158583

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 113
-Paragraph 28
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Position (SOP)
-Number 01-6
-Paragraph 14
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2197480

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 40
-Section 45
-URI http://asc.fasb.org/section&trid=2197723

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196966

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-SubTopic 20
-URI http://asc.fasb.org/subtopic&trid=2197087

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790

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-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.3A-02)
-URI http://asc.fasb.org/extlink&oid=6959686&loc=d3e355033-122828

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=16385135&loc=d3e33801-111570

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-Name Accounting Standards Codification
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=18733093&loc=d3e5614-111684

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 4
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 5, 6, 16-19
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 96-16
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 4
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 20
-Subparagraph a(2)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 2-6
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 97-2
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph k
-Article 1

Reference 17: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 140
-Paragraph 46
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02, 03
-Article 3A

Reference 19: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 46R
-Paragraph 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2013

Fair Value Disclosures [Abstract]

Schedule of Cash and Cash Equivalents, Available-for-sale Securities, Restricted Cash Reconciliation

The Company's cash and cash equivalents, short-term investments, long-term investments and restricted cash consist of the following:



	June 30, 2013
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
Cash and cash equivalents:
Cash	$	26,338	$	—	$	—		$	26,338
Money market funds	22,972		—		—			22,972
Commercial paper	17,596		1		—			17,597
Corporate bonds	1,714		—		(2		)	1,712
Total	68,620		1		(2		)	68,619
Short-term investments:
Commercial paper	28,255		13		—			28,268
Corporate bonds	8,341		2		(7		)	8,336
Municipal bonds	1,154		—		—			1,154
Total	37,750		15		(7		)	37,758
Long-term investments:
Asset-backed securities	1,000		—		(4		)	996
U.S. government agencies	4,724		1		—			4,725
Corporate bonds	14,373		4		(23		)	14,354
Total	20,097		5		(27		)	20,075
Total	$	126,467	$	21	$	(36	)	$	126,452



	December 31, 2012
	Amortized Cost		Unrealized Gains		Unrealized Losses		Fair Value
	(in thousands)
Cash and cash equivalents:
Cash	$	23,419	$	—	$	—	$	23,419
Money market funds	170		—		—		170
Commercial paper	11,294		2		—		11,296
Total	34,883		2		—		34,885
Short-term investments:
Commercial paper	21,078		2		—		21,080
U.S. government agencies	62,463		4		—		62,467
Total	83,541		6		—		83,547
Restricted cash - cash	114		—		—		114
Total	$	118,538	$	8	$	—	$	118,546

Schedule of Assets Measured on Recurring Basis

lowing table sets forth by level within the fair value hierarchy the fair value of the Company's available-for-sale securities measured on a recurring basis:



	June 30, 2013
	Level 1		Level 2		Level 3		Fair Value
	(in thousands)
Commercial paper	$	—	$	45,865	$	—	$	45,865
U.S. government agencies	—		4,725		—		4,725
Municipal bonds	—		1,154		—		1,154
Corporate bonds	—		24,402		—		24,402
Asset-backed securities	—		996		—		996
Total	$	—	$	77,142	$	—	$	77,142



	December 31, 2012
	Level 1		Level 2		Level 3		Fair Value
	(in thousands)
Commercial paper	$	—	$	32,376	$	—	$	32,376
U.S. government agencies	—		62,467		—		62,467
Total	$	—	$	94,843	$	—	$	94,843

Schedule of Available-for-Sale Securities by Contractual Maturity

The following summarizes the fair value of securities classified as available-for-sale by contractual maturity:



	June 30, 2013
	Mature within One Year		After One Year through Two Years		Over Two Years		Fair Value
	(in thousands)
Commercial paper	$	45,865	$	—	$	—	$	45,865
U.S. government agencies	—		4,725		—		4,725
Municipal bonds	1,154		—		—		1,154
Corporate bonds	10,048		14,354		—		24,402
Asset-backed securities	—		—		996		996
Total	$	57,067	$	19,079	$	996	$	77,142



	December 31, 2012
	Mature within One Year		After One Year through Two Years		Over Two Years		Fair Value
	(in thousands)
Commercial paper	$	32,376	$	—	$	—	$	32,376
U.S. government agencies	62,467		—		—		62,467
Total	$	94,843	$	—	$	—	$	94,843

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 7
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-Name Accounting Standards Codification
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-Paragraph 3
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563

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-Name Accounting Standards Codification
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-Name Accounting Standards Codification
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-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 19, 20, 21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 17
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-1
-Paragraph 21
-Subparagraph a, b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References + Details

Property and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2013

Property, Plant and Equipment [Abstract]

Property and equipment

Property and equipment, which includes assets under capital lease, consists of the following:



	June 30,			December 31,
	2013			2012
	(in thousands)
Computer equipment	$	23,419		$	18,798
Computer software	9,129			6,327
Furniture, fixtures and equipment	1,714			1,545
Scanner appliances	16,878			16,470
Leasehold improvements	1,726			1,672
Total property and equipment	52,866			44,812
Less: accumulated depreciation and amortization	(30,340		)	(26,664		)
Property and equipment, net	$	22,526		$	18,148

Goodwill and Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying value of intangible assets

The carrying values of intangible assets are as follows (in thousands):



				June 30, 2013					December 31, 2012
	Estimated Lives	Cost		Accumulated Amortization			Net Book Value		Accumulated Amortization			Net Book Value
Existing technology	7 years	$	1,910	(773		)	$	1,137	$	(637	)	$	1,273
Patent license	14 years	1,388		(273		)	1,115		(223		)	1,165
Non-competition agreements and other	3 years	171		(121		)	50		(93		)	78
Total intangibles subject to amortization		$	3,469	$	(1,167	)	2,302		$	(953	)	2,516
Intangible assets not subject to amortization							295					295
Total intangible assets, net							$	2,597				$	2,811

Intangible assets future periods amortization expense

As of June 30, 2013, the Company expects amortization expense in future periods to be as follows (in thousands):



Remainder of 2013	$	203
2014	392
2015	385
2016	372
2017	281
2018 and thereafter	669
Total expected future amortization expense	$	2,302

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments for Capital and Operating Leases

The following are the minimum annual lease payments due under these leases at June 30, 2013:



	Operating Leases		Capital Leases
	(in thousands)
Remainder of 2013	$	1,928	$	538
2014	3,263		815
2015	2,253		—
2016	1,634		—
2017	1,466		—
2018 and thereafter	185		—
Total minimum lease payments	$	10,729	1,353
Less amount representing interest			(17		)
Present value of minimum payments			1,336
Less current portion			(1,058		)
Capital lease obligations, noncurrent			$	278

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based employee compensation

Stock-based employee compensation is included in the condensed consolidated statements of operations as follows:



	Three Months Ended				Six months ended
	June 30,				June 30,
	2013		2012		2013		2012
	(in thousands)
Cost of revenues	$	101	$	69	$	194	$	123
Research and development	226		155		434		294
Sales and marketing	158		265		441		440
General and administrative	457		237		792		479
Total stock-based employee compensation	$	942	$	726	$	1,861	$	1,336

Fair value assumptions of options granted to employees

The fair value of each option granted to employees is estimated on the date of grant using the Black-Scholes option-pricing model based on the following assumptions:



	Three Months Ended		Six months ended
	June 30,		June 30,
	2013	2012	2013	2012
Expected term (in years)	5.4 to 6.1	5.3 to 6.0	5.4 to 6.1	5.3 to 6.0
Volatility	52%	53%	52% to 53%	53%
Risk-free interest rate	0.7% to 1.1%	0.7% to 0.8%	0.7% to 1.1%	0.7% to 0.9%
Dividend yield	—	—	—	—

Stock option activity

summary of the Company’s stock option activity is as follows:



	Outstanding Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value
						(in thousands)
Balance as of December 31, 2012	6,513,508		$	4.39	6.6	$	67,711
Granted	1,024,250		12.07
Exercised	(566,456	)	3.89
Canceled	(229,619	)	8.65
Balance as of June 30, 2013	6,741,683		5.46		6.7	71,877
Vested and expected to vest - June 30, 2013	6,068,632		5.03		6.5	67,298
Exercisable - June 30, 2013	5,667,591		4.17		6.3	60,426

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Other Income (Expense), Net (Tables)

6 Months Ended

Jun. 30, 2013

Other Income and Expenses [Abstract]

Schedule of Other Nonoperating Income (Expense)

Other income (expense), net consists of the following:



	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
	(in thousands)
Foreign exchange gains (losses), net	$	(116	)	$	(91	)	$	(414	)	$	(95	)
Other income (expense)	149			(1		)	128			(9		)
Other income (expense), net	$	33		$	(92	)	$	(286	)	$	(104	)

Segment Information and Information about Geographic Area (Tables)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

Revenues by geographic area

Revenues by geographic area, based on the location of the customer, are as follows:



	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2013		2012		2013		2012
	(in thousands)
United States	$	18,434	$	14,809	$	35,807	$	29,021
Other	7,857		7,381		15,367		14,360
Total revenues	$	26,291	$	22,190	$	51,174	$	43,381

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Net Income (Loss) Per Share Attributable to Common Stockholders (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The computations for basic and diluted net income (loss) per share attributable to common stockholders are as follows:



	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013		2012
	(in thousands)
Numerator:
Net income (loss)	$	873		$	(277	)	$	270	$	(562	)
Net income attributable to participating securities	(1		)	—			—		—
Net income (loss) attributable to common stockholders - basic	872			(277		)	270		(562		)
Undistributed earnings reallocated to participating securities	—			—			—		—
Net income (loss) attributable to common stockholders - diluted	$	872		$	(277	)	$	270	$	(562	)
Denominator:
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders - basic	31,777			5,515			31,636		5,392
Effect of potentially dilutive securities:
Common stock options	3,616			—			3,717		—
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders - diluted	35,393			5,515			35,353		5,392
Net income (loss) per share attributable to common stockholders
Basic	$	0.03		$	(0.05	)	$	0.01	$	(0.10	)
Diluted	$	0.02		$	(0.05	)	$	0.01	$	(0.10	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following shares were excluded in the calculation of diluted net income (loss) per share because their inclusion would have been anti-dilutive:



	Three Months Ended		Six Months Ended
	June 30,		June 30,
	2013	2012	2013	2012
	(in thousands)
Convertible preferred stock	—	17,597	—	17,597
Common stock options	989	6,539	756	6,466
Contingently issuable shares related to an acquisition	—	4	—	8
	989	24,140	756	24,071

Fair Value of Financial Instruments -Cash and Cash Equivalents, Available-for-sale Securities, Restricted Cash Reconciliation (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	$ 68,619	$ 34,885	$ 28,459	$ 24,548
Amortized cost	126,467	118,538
Unrealized gains	21	8
Unrealized losses	(36)	0
Fair value	126,452	118,546
Restricted cash- cash	0	114
Cash and Cash Equivalents
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	26,338	23,419
Amortized cost	68,620	34,883
Unrealized gains	1	2
Unrealized losses	(2)	0
Fair value	68,619	34,885
Short-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	37,750	83,541
Unrealized gains	15	6
Unrealized losses	(7)	0
Fair value	37,758	83,547
Long-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	20,097
Unrealized gains	5
Unrealized losses	(27)
Fair value	20,075
Restricted Cash
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Restricted cash- cash		114
Money Market Funds
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Unrealized gains	0	0
Unrealized losses	0	0
Money Market Funds \| Cash and Cash Equivalents
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	22,972	170
Fair value	22,972	170
Commercial Paper \| Cash and Cash Equivalents
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	17,596	11,294
Unrealized gains	1	2
Unrealized losses	0	0
Fair value	17,597	11,296
Commercial Paper \| Short-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	28,255	21,078
Unrealized gains	13	2
Unrealized losses	0	0
Fair value	28,268	21,080
Corporate bonds \| Short-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	8,341
Unrealized gains	2
Unrealized losses	(7)
Fair value	8,336
Corporate bonds \| Long-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	14,373
Unrealized gains	4
Unrealized losses	(23)
Fair value	14,354
Municipal bonds \| Short-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	1,154
Unrealized gains	0
Unrealized losses	0
Fair value	1,154
US Government Agencies \| Short-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost		62,463
Unrealized gains		4
Unrealized losses		0
Fair value		$ 62,467
US Government Agencies \| Long-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	4,724
Unrealized gains	1
Unrealized losses	0
Fair value	4,725
Asset backed securities \| Long-term Investments
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Amortized cost	1,000
Unrealized gains	0
Unrealized losses	(4)
Fair value	$ 996

Fair Value of Financial Instruments -Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	$ 77,142	$ 94,843
Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	77,142	94,843
Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	77,142	94,843
Commercial Paper
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	45,865	32,376
Commercial Paper \| Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
Commercial Paper \| Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	45,865	32,376
Commercial Paper \| Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
Commercial Paper \| Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	45,865	32,376
US Government Agencies
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	4,725	62,467
US Government Agencies \| Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
US Government Agencies \| Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	4,725	62,467
US Government Agencies \| Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0	0
US Government Agencies \| Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	4,725	$ 62,467
Municipal bonds
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	1,154
Municipal bonds \| Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Municipal bonds \| Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	1,154
Municipal bonds \| Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Municipal bonds \| Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	1,154
Corporate bonds
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	24,402
Corporate bonds \| Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Corporate bonds \| Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	24,402
Corporate bonds \| Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Corporate bonds \| Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	24,402
Asset backed securities
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	996
Asset backed securities \| Level 1 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Asset backed securities \| Level 2 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	996
Asset backed securities \| Level 3 \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	0
Asset backed securities \| Fair Value \| Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Available-for-sale securities, fair value	$ 996

Fair Value of Financial Instruments - Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	$ 57,067	$ 94,843
After one year through two years	19,079	0
Over two years	996	0
Fair value	77,142	94,843
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	45,865	32,376
After one year through two years	0	0
Over two years	0	0
Fair value	45,865	32,376
US Government Agencies
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	0	62,467
After one year through two years	4,725	0
Over two years	0	0
Fair value	4,725	$ 62,467
Municipal bonds
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	1,154
After one year through two years	0
Over two years	0
Fair value	1,154
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	10,048
After one year through two years	14,354
Over two years	0
Fair value	24,402
Asset backed securities
Schedule of Available-for-sale Securities [Line Items]
Mature within one year	0
After one year through two years	0
Over two years	996
Fair value	$ 996

Fair Value of Financial Instruments - Derivatives (Details) $ in Thousands, € in Millions, £ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 EUR (€) derivative	Jun. 30, 2013 GBP (£) derivative	Jun. 30, 2013 USD ($) derivative	Dec. 31, 2012 EUR (€) derivative	Dec. 31, 2012 USD ($) derivative
Derivatives, Fair Value [Line Items]
Derivative, number of instruments held \| derivative					2	2	2	1	1
Foreign currency contract, asset, fair value disclosure							$ 0		$ 0
Derivative instruments not designated as hedging instruments, loss	$ 100		$ 200
Foreign currency transaction loss, before tax		$ 600	$ 200	$ 400
Derivative instruments not designated as hedging instruments, gain		$ 500		$ 300
Foreign currency transaction gain, before tax	$ 31
Forward Contracts
Derivatives, Fair Value [Line Items]
Derivative, notional amount					€ 5.9	£ 2.5		€ 10.7

Property and Equipment, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment	$ 52,866		$ 52,866		$ 44,812
Depreciation and amortization expense	2,300	$ 1,700	4,300	$ 3,300
Less: accumulated depreciation and amortization	(30,340)		(30,340)		(26,664)
Property and equipment, net	22,526		22,526		18,148
Capital lease	3,800		3,800		3,800
Capital lease, accumulated depreciation	1,600		1,600		1,200
Computer equipment
Property, Plant and Equipment [Line Items]
Property and equipment	23,419		23,419		18,798
Computer software
Property, Plant and Equipment [Line Items]
Property and equipment	9,129		9,129		6,327
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property and equipment	1,714		1,714		1,545
Scanner appliances
Property, Plant and Equipment [Line Items]
Property and equipment	16,878		16,878		16,470
Scanner appliances and other computer equipment subject to subscription
Property, Plant and Equipment [Line Items]
Property and equipment, net	5,200		5,200		5,500
Scanner appliances and other computer equipment not placed in service
Property, Plant and Equipment [Line Items]
Property and equipment	1,400		1,400		1,500
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	1,726		1,726		1,672
Other fixed assets not placed in service
Property, Plant and Equipment [Line Items]
Property and equipment	$ 900		$ 900		$ 1,700

Goodwill and Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Schedule of Goodwill and Intangible Assets [Line Items]
Cost	$ 3,469		$ 3,469		$ 3,469
Accumulated Amortization	(1,167)		(1,167)		(953)
Net Book Value	2,302		2,302		2,516
Intangible assets not subject to amortization	295		295		295
Total intangible assets, net	2,597		2,597		2,811
Amortization of intangible assets	100	$ 100	200	$ 200
Goodwill	317		$ 317		317
Existing technology
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			7 years
Cost	1,910		$ 1,910		1,910
Accumulated Amortization	(773)		(773)		(637)
Net Book Value	1,137		$ 1,137		1,273
Patent license
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			14 years
Cost	1,388		$ 1,388		1,388
Accumulated Amortization	(273)		(273)		(223)
Net Book Value	1,115		$ 1,115		1,165
Non-competition agreements and other
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			3 years
Cost	171		$ 171		171
Accumulated Amortization	(121)		(121)		(93)
Net Book Value	$ 50		$ 50		$ 78

Goodwill and Intangible Assets, Net Future Amortization (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2013	$ 203
2014	392
2015	385
2016	372
2017	281
2018 and thereafter	669
Net Book Value	$ 2,302	$ 2,516

Commitments and Contingencies - Lease Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Leased Assets [Line Items]
Rent expense	$ 1.4	$ 1.0	$ 2.7	$ 2.1
Deferred rent credit	0.5		0.5		$ 0.5
Sales and excise tax payable, current	$ 0.4		$ 0.4		0.4
Capital Lease Obligations \| Minimum
Leased Assets [Line Items]
Debt interest rate	1.80%		1.80%
Capital Lease Obligations \| Maximum
Leased Assets [Line Items]
Debt interest rate	4.00%		4.00%
Capital Addition Purchase Commitments \| Capital Lease Obligations
Leased Assets [Line Items]
Debt face amount						$ 3.1
Maintenance and Support
Leased Assets [Line Items]
Recorded unconditional purchase obligation	$ 1.5		$ 1.5		$ 1.6

Commitments and Contingencies - Schedule of Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2013	Dec. 31, 2012
Operating Leases
Remainder of 2013	$ 1,928
2014	3,263
2015	2,253
2016	1,634
2017	1,466
2018 and thereafter	185
Total mimimum lease payments	10,729
Capital Leases
Remainder of 2013	538
2014	815
2015	0
2016	0
2017	0
2018 and thereafter	0
Total minimum lease payments	1,353
Less amount representing interest	(17)
Present value of minimum payments	1,336
Less current portion	(1,058)	$ (1,183)
Capital lease obligations, noncurrent	$ 278	$ 808

Commitments and Contingencies - Sales and Other Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2013	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Sales and excise tax payable, current	$ 0.4	$ 0.4

Stock-Based Compensation - Plan Information (Details) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Sep. 26, 2012	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of unvested shares repurchased		126		60,126
2012 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	3,050,000
Expiration period			10 years
Number of shares available for grant			1,948,350
2012 Equity Incentive Plan \| Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
Term of award	10 years
2000 Equity Incentive Plan \| Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			4 years
Term of award			10 years
Number of shares subject to repurchase (shares)			29,838		47,220
Liability for options early exercised			$ 0.2		$ 0.3
2000 Equity Incentive Plan \| Stock Options \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award strike price as a percentage of market value			85.00%
Increase of Number of Shares Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan annual increase (shares)	3,050,000
Increase of Percentage of Shares Outstanding Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan, annual increase, percent of shares outstanding	5.00%

Stock-Based Compensation - Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based employee compensation	$ 942	$ 726	$ 1,861	$ 1,336
Unrecognized employee compensation cost	8,000		$ 8,000		$ 5,800
Unrecognized employee compensation cost, period for recognition			2 years		2 years
Non-employee share-based compensation expense	300	100	$ 300	200
Cost of revenues
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based employee compensation	101	69	194	123
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based employee compensation	226	155	434	294
Selling and marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based employee compensation	158	265	441	440
General and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based employee compensation	$ 457	$ 237	$ 792	$ 479

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References + Details

Stock-Based Compensation - Fair Value Assumptions, Stock Options (Details) - Stock Options	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	52.00%	53.00%		53.00%
Dividend yield	0.00%	0.00%	0.00%	0.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	5 years 4 months 24 days	5 years 3 months 18 days	5 years 4 months 24 days	5 years 3 months 18 days
Volatility			52.00%
Risk-free interest rate	0.70%	0.70%	0.70%	0.70%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 years 1 month 6 days	6 years	6 years 1 month 6 days	6 years
Volatility			53.00%
Risk-free interest rate	1.10%	0.80%	1.10%	0.90%

Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Outstanding Shares
Beginning balance (in shares)	6,513,508
Granted (in shares)	1,024,250
Exercised (in shares)	(566,456)
Canceled (in shares)	(229,619)
Ending balance (in shares)	6,741,683	6,513,508
Vested and expected to vest (in shares)	6,068,632
Exercisable (in shares)	5,667,591
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 4.39
Weighted average exercise price, granted (in dollars per share)	12.07
Weighted average exercise price, exercised (in dollars per share)	3.89
Weighted average exercise price, canceled (in dollars per share)	8.65
Ending balance (in dollars per share)	5.46	$ 4.39
Vested and expected to vest (in dollars per share)	5.03
Exercisable (in dollars per share)	$ 4.17
Weighted Average Remaining Contractual Life
Weighted average remaining contractual life	6 years 8 months 7 days	6 years 7 months 6 days
Vested and expected to vest	6 years 6 months 7 days
Exercisable	6 years 3 months 7 days
Aggregate Intrinsic Value
Aggregate intrinsic value	$ 71,877	$ 67,711
Vested and expected to vest	67,298
Exercisable	$ 60,426

Stock-Based Compensation - Restricted Stock (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based employee compensation	$ 942	$ 726	$ 1,861	$ 1,336
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	1,900	2,750
Stock-based employee compensation	$ 20	$ 32

- Definition

+ References + Details

Other Income (Expense), Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Income and Expenses [Abstract]
Foreign exchange gains (losses), net	$ (116)	$ (91)	$ (414)	$ (95)
Other income (expense)	149	(1)	128	(9)
Other income (expense), net	$ 33	$ (92)	$ (286)	$ (104)

- Definition

The aggregate foreign currency transaction gain (loss) (both realized and unrealized) included in determining net income for the reporting period. Excludes foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. For certain enterprises, primarily banks, that are dealers in foreign exchange, foreign currency transaction gains (losses) may be disclosed as dealer gains (losses).

+ References + Details

Income Taxes (Details) - USD ($) $ in Millions	Jun. 30, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 3.1	$ 2.6
Unrecognized Tax benefits that would impact effective tax rate	$ 1.0	$ 1.0

Segment Information and Information about Geographic Area (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2013 USD ($) segment	Jun. 30, 2012 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments \| segment			1
Revenues	$ 26,291	$ 22,190	$ 51,174	$ 43,381
United States
Segment Reporting Information [Line Items]
Revenues	18,434	14,809	35,807	29,021
Other
Segment Reporting Information [Line Items]
Revenues	$ 7,857	$ 7,381	$ 15,367	$ 14,360

Net Income (Loss) Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Numerator:
Net income (loss)	$ 873	$ (277)	$ 270	$ (562)
Net income attributable to participating securities	(1)	0	0	0
Net income (loss) attributable to common stockholders - basic	872	(277)	270	(562)
Undistributed earnings allocated to participating securities	0	0	0	0
Net income (loss) attributable to common stockholders - diluted	$ 872	$ (277)	$ 270	$ (562)
Denominator:
Weighted - average shares used in computing net income (loss) per share attributable to common stockholders - basic (shares)	31,777	5,515	31,636	5,392
Effect of potentially dilutive securities: Common stock options	3,616	0	3,717	0
Weighted - average shares used in computing net income (loss) per share attributable to common stockholders - diluted (shares)	35,393	5,515	35,353	5,392
Basic (USD per share)	$ 0.03	$ (0.05)	$ 0.01	$ (0.10)
Diluted (USD per share)	$ 0.02	$ (0.05)	$ 0.01	$ (0.10)
Antidilutive Securities
Antidilutive securities	989	24,140	756	24,071
Convertible preferred stock
Antidilutive Securities
Antidilutive securities	0	17,597	0	17,597
Stock Options
Antidilutive Securities
Antidilutive securities	989	6,539	756	6,466
Contingently issuable shares related to an acquisition
Antidilutive Securities
Antidilutive securities	0	4	0	8