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Stockholders' Deficit (Details Textual) (USD $)
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1 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
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Dec. 31, 2012
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Apr. 30, 2012
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Apr. 09, 2012
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Mar. 15, 2011
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Sep. 30, 2010
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Dec. 31, 2009
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Dec. 31, 2012
Accrued Liabilities [Member]
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Mar. 15, 2013
Series A Warrants [Member]
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Mar. 14, 2013
Series A Warrants [Member]
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Apr. 30, 2012
Series A Warrants [Member]
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Apr. 09, 2012
Series A Warrants [Member]
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Oct. 31, 2012
Series B Warrants [Member]
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Sep. 30, 2012
Series B Warrants [Member]
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Dec. 31, 2012
Series B Warrants [Member]
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Apr. 30, 2012
Series B Warrants [Member]
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Apr. 09, 2012
Series B Warrants [Member]
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Apr. 30, 2012
Deerfield Warrant [Member]
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Dec. 31, 2012
Institutional Investor [Member]
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| Stockholders' Equity (Textual) [Abstract] | |||||||||||||||||||
| Purchase and sale of warrants of common stock under subscription agreements | 6,517,648 | 6,517,648 | |||||||||||||||||
| Gross proceeds from sale to institutional investor | $ 3,934,000 | $ 964,000 | $ 5,540,000 | ||||||||||||||||
| Premium allocated to fair value option agreement | 1,700,000 | ||||||||||||||||||
| Number of common stock | 520,776 | 520,776 | 4,627,941 | 1,133,824 | 5,761,765 | ||||||||||||||
| Exercise price of common stock Warrants adjusted | 1.57 | 0.87 | 2.13 | 1.15 | 0.85 | 1.25 | |||||||||||||
| Issuance Costs | 500,000 | ||||||||||||||||||
| Stockholders Equity (Additional Textual) [Abstract] | |||||||||||||||||||
| Purchase and sale of shares of common stock under subscription agreements | 6,517,648 | 6,517,648 | |||||||||||||||||
| Number of common stock sold | 3,400,000 | ||||||||||||||||||
| Fair value of warrants | 2,900,000 | ||||||||||||||||||
| Purchase price of sold common stock | $ 4,250,000 | ||||||||||||||||||
| Per share price of sold common stock | $ 1.25 | ||||||||||||||||||
| Allocated to fair value option agreement | $ 0.50 | ||||||||||||||||||