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Fair Value Measurements (Details 3) (Warrants, USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
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Mar. 31, 2011
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Warrants
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| Reconciliation of the beginning and ending balances for the warrant liability | |||
| Balance at the beginning of the period | $ 791 | $ 20,772 | $ 26,803 |
| Total realized and unrealized (gains) losses, income (expense) included in change in fair value of warrant liability | (781) | (13,872) | 3,667 |
| Purchases, issuances and settlements | (6,109) | (9,698) | |
| Balance at the end of the period | $ 10 | $ 791 | $ 20,772 |
| X | ||||||||||
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- Details
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- Definition
Amount of gain (loss) recognized in earnings, arising from liabilities measured at fair value on a recurring basis using unobservable inputs (level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of purchases, sales, issues, and settlements in relation to liabilities measured at fair value on a recurring basis using unobservable inputs (level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This element represents a liability measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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