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Stockholders' Equity (Details 2) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended |
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Jun. 30, 2012
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| Reconciliation of the warrant liability measured at fair value | |
| Balance at December 31, 2011 | $ 9,209 |
| Change in fair value of common stock warrants during six months ended June 30, 2012 | 88,539 |
| Exercise of warrants during six months ended June 30, 2012 | (21,989) |
| Balance at June 30, 2012 | $ 75,759 |
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- Definition
Change in fair value of common stock warrants. No definition available.
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- Definition
Exercise of warrants liability measured at fair value. No definition available.
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- Details
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- Definition
Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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