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Loss Per Share (Details) | 9 Months Ended
--- | ---
Sep. 30, 2012 | Sep. 30, 2011
Stock Options [Member] |  |
Class of Stock [Line Items] |  |
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares | 22,389,642 | 17,749,895
Warrants [Member] |  |
Class of Stock [Line Items] |  |
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares | 56,314,182 | 35,208,817
Series E Preferred Stock [Member] |  |
Class of Stock [Line Items] |  |
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares | 2,634,799 | 4,693,730
Restricted Stock [Member] |  |
Class of Stock [Line Items] |  |
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares | 232,000 | 830,834

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