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Loss Per Share (Details)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Stock Options [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	26,311,813	21,402,957
Warrants [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	55,010,546	52,695,366
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	0	4,034,536
Restricted Stock [Member]
Class of Stock [Line Items]
Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares	355,000	401,167

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- Definition

Dilutive Securities Excluded From Computation Of Earnings Per Share, Shares

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