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Stock-based Compensation (Details 3) (Employee Stock, USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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Employee Stock
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| Weighted-average assumptions relating to options granted | ||
| Risk-free interest rate (as a percent) |
0.60%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
0.30%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
| Expected term (in years) | 1 year 6 months | 1 year 8 months 12 days |
| Dividend yield (as a percent) |
0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
| Expected volatility (as a percent) |
61.20%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
66.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
| Additional disclosures | ||
| Shares reserved for future issuance |
3,578,153us-gaap_CommonStockCapitalSharesReservedForFutureIssuance / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Award offering period | 24 months | |
| Number of purchase periods per award offering period |
4rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriodsPerAwardOfferingPeriod / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Award purchase period | 6 months | |
| Purchase price expressed as a percentage of fair market value of common stock on the purchase date |
85.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Purchase price expressed as a percentage of fair market value of common stock on the first day of the offering period |
85.00%rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePriceOfCommonStockPercentageOnFirstDayOfOfferingPeriod / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Total incremental fair value for the Purchase Plan reset |
$ 792,000rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardIncrementalFairValue / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| X | ||||||||||
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- Definition
Represents the incremental fair value for awards under the Purchase Plan reset feature. No definition available.
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- Definition
Represents the offering period for awards under the equity-based compensation plan. No definition available.
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- Definition
Represents the purchase period for awards under the equity-based compensation plan. No definition available.
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- Definition
Represents the number of purchase periods per award offering period under the equity-based compensation plan. No definition available.
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- Definition
Represents the purchase price expressed as a percentage of the fair market value of common stock on the first day of the offering period. No definition available.
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- Definition
Aggregate number of common shares reserved for future issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Purchase price of common stock expressed as a percentage of its fair value. No definition available.
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