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Assets And Liabilities Measured at Fair Value on Recurring Basis by Level Within Fair Value Hierarchy (Detail) (Fair Value, Measurements, Recurring, USD $)
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Jun. 30, 2012
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Dec. 31, 2011
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| Assets | ||||||
| Money Market Account | $ 110,372 | [1] | $ 171,651 | [1] | ||
| Liabilities | ||||||
| Warrant Liability | 136,488 | 80,357 | ||||
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Level 1
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| Assets | ||||||
| Money Market Account | 110,372 | [1] | 171,651 | [1] | ||
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Level 3
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| Liabilities | ||||||
| Warrant Liability | $ 136,488 | $ 80,357 | ||||
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