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STOCK-BASED COMPENSATION (Details 5) (USD $)
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0 Months Ended | 12 Months Ended | ||
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Jan. 03, 2015
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Stock Based Compensation | ||||
| Increase in number of shares authorized | 4,000,000rigl_IncreaseInNumberOfSharesAuthorizedForIssuanceUnderDirectorsPlan | |||
| Total incremental fair value for the Purchase Plan reset | $ 792,000rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardIncrementalFairValue | |||
| Employee Stock [Member] | ||||
| Stock Based Compensation | ||||
| 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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| 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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| Number of shares of common stock issued |
505,877us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
383,717us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
269,681us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Average price of shares issued (in dollars per share) |
2.24rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
$ 2.74rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
$ 5.81rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsWeightedAverageExercisePrice / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Weighted average fair value of stock purchased (in dollars per share) |
1.42us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
$ 2.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
$ 3.42us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| Number of shares of common stock available for future issuance |
3,578,153us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / 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 | |||
| Total incremental fair value for the Purchase Plan reset |
577,000rigl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardIncrementalFairValue / us-gaap_PlanNameAxis = us-gaap_EmployeeStockMember |
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| X | ||||||||||
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- Definition
Represents the information pertaining to increase in number of shares authorized for issuance under directors plan. No definition available.
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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 average purchase price for equity-based awards issued during the period on other than stock (or unit) option plans (Employee Stock Purchase 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
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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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). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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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- Definition
Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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