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Stockholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2012
Stockholders' Equity [Abstract] |
Schedule of conversion of preferred stock issued to common stock |
|  | Shares of Preferred Stock Not Exchanged as of December 31, 2012 |  |  | Conversion Ratio |  |  | Shares of Common Stock after Conversion of all Outstanding Shares of Preferred Stock Not yet Exchanged at December 31, 2012 |
Series A Preferred stock |  |  | 83 |  |  |  | 480.63 |  |  |  | 39,892 |
Series B Preferred stock |  |  | 95 |  |  |  | 132.07 |  |  |  | 12,547 |
Total remaining not exchanged |  |  | 178 |  |  |  |  |  |  |  | 52,439 |

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