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Stock Warrants - Additional Information (Detail) (USD $)
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6 Months Ended | |
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Jun. 30, 2012
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Jun. 30, 2011
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| Class of Warrant or Right | ||
| Warrants outstanding to purchase common stock | 17,500,000 | |
| Warrants, weighted average exercise price | 0.56 | |
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Minimum
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| Class of Warrant or Right | ||
| Warrants, exercisable price | 0.32 | |
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Maximum
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| Class of Warrant or Right | ||
| Warrants, exercisable price | 2.375 | |
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Series V Warrants
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| Class of Warrant or Right | ||
| Warrants exercised | 20,000 | 810,000 |
| Warrants exercised, common stock issued | 20,000 | |
| Warrants exercised, gross proceeds | $ 6,200 | |
| X | ||||||||||
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- Definition
Class of Warrant or Right, Weighted Average Exercise Price of Warrants or Rights No definition available.
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| X | ||||||||||
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- Definition
Number of Warrants Exercised No definition available.
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- Definition
Number of shares issued during the period as a result of the exercise of warrants. No definition available.
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- Definition
The exercise price of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Aggregate amount of each class of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow associated with the amount received from holders exercising their stock warrants. No definition available.
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