v2.4.1.9

Employee Stock and Benefit Plans (Plan Information) (Details) | 0 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 26, 2012 | Dec. 31, 2014 | Sep. 30, 2014
2012 Equity Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares authorized |  |  | 4,668,764 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = qlys_A2012EquityIncentivePlanMember
Number of shares available for grant |  | 803,630 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = qlys_A2012EquityIncentivePlanMember |
2012 Equity Incentive Plan | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 10 years |  |
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 available for issuance |  | 0 qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForIssuance / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_PlanNameAxis = qlys_A2000EquityIncentivePlanMember |
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%qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardStrikePriceAsPercentageOfMarketValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember / us-gaap_PlanNameAxis = qlys_A2000EquityIncentivePlanMember / us-gaap_RangeAxis = us-gaap_MinimumMember |
Increase of Number of Shares Option | 2012 Equity Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity incentive plan annual increase (in shares) | 3,050,000 qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreaseShares / qlys_EquityIncentivePlanAnnualIncreaseFeatureAxis = qlys_IncreaseOfNumberOfSharesOptionMember / us-gaap_PlanNameAxis = qlys_A2012EquityIncentivePlanMember |  |
Increase of Percentage of Shares Outstanding Option | 2012 Equity Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Equity incentive plan, annual increase, percent of shares outstanding | 5.00%qlys_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedAnnualIncreasePercentOfSharesOutstanding / qlys_EquityIncentivePlanAnnualIncreaseFeatureAxis = qlys_IncreaseOfPercentageOfSharesOutstandingOptionMember / us-gaap_PlanNameAxis = qlys_A2012EquityIncentivePlanMember |  |

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Award Strike Price as a Percentage of Market Value + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Annual Increase, Percent of Shares Outstanding + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Annual Increase, Shares + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Issuance + References No definition available. + Details
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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Term of Award + References No definition available. + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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- Details
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- Details
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