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Common Stock (Tables) | 12 Months Ended
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Dec. 31, 2012
Common Stock [Abstract] |
Reserved shares of common stock for the exercise of options, warrants and other contingent issuances of common stock | Common Stock Reserved We reserved the following shares of common stock for the exercise of options, warrants and other contingent issuances of common stock, as of December 31, 2012:
Shares reserved for share based compensation |  |  | 2,612,901 |
Shares reserved for warrants related to financing transactions |  |  | 9,935,912 |
Total |  |  | 12,548,813 |

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- Definition Reserved shares of common stock for the exercise of options, warrants and other contingent issuances of common stock. + References No definition available. + Details
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