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- Details 
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- Details 
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- Definition Aggregate intrinsic value exercisable No definition available. 
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- Definition Weighted average remaining contractual life - No definition available. 
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| X | ||||||||||
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- Definition Weighted average remaining contractual life - outstanding No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableExercisePriceMaximum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableExercisePriceMinimum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriodIntrinsicValue No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePriceMaximum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingExercisePriceMinimum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodExercisePrice No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodExercisePrice No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePriceMaximum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodExercisePriceMinimum No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodIntrinsicValue No definition available. 
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| X | ||||||||||
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- Definition ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageRemainingContractualTerm No definition available. 
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- Details 
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- Details 
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition Gross number of share options (or share units) granted during the period. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded. No definition available. 
 | 
| X | ||||||||||
| 
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 |