Basis of Presentation and Going Concern (Details 3)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock options
Loss per Share
Securities excluded from the calculation of diluted loss per share because the effect was antidilutive (in shares)	9,734,268	5,964,039	4,302,008
Warrants
Loss per Share
Securities excluded from the calculation of diluted loss per share because the effect was antidilutive (in shares)	5,647,203	5,597,203	728,469

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-Name Statement of Financial Accounting Standard (FAS)

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-Name Accounting Standards Codification

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+ Details