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Capital Facility and Equity Financings (Details 2) (USD $)
In Thousands, except Share data, unless otherwise specified |
0 Months Ended | 9 Months Ended | 105 Months Ended | 0 Months Ended | 1 Months Ended | 1 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2013
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Sep. 30, 2013
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Sep. 30, 2013
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Dec. 31, 2012
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Feb. 04, 2013
October 2012 Equity Financing Warrants
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Sep. 25, 2012
October 2012 Equity Financing Warrants
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Sep. 30, 2012
October 2012 Equity Financing Warrants
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Sep. 30, 2012
Series A Preferred Stock
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Sep. 30, 2013
Series A Preferred Stock
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Sep. 30, 2012
Preferred Stock
Series A Preferred Stock
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Sep. 30, 2013
Common Stock
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Sep. 30, 2012
Issuance of Equity
Units
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| Capital Structure and Equity Financings | ||||||||||||
| Shares sold | 14,000,000 | |||||||||||
| Purchase price per unit (in dollars per share) | $ 2.00 | |||||||||||
| Number of shares of preferred stock included in each unit | $ 0.001 | |||||||||||
| Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 | |||||||
| Dividend rate on Series A Preferred stock, calculated as 8% per 1/1000 share (as a percent per share) | 8000.00% | |||||||||||
| Dividend dollar value on Series A Preferred stock per share, calculated as 8% per 1/1000 share (in dollars per share) | $ 160 | |||||||||||
| Conversion price, calculated as $2.00 per 1/1000 share (in dollars per share) | $ 2.00 | |||||||||||
| Aggregate purchase price of equity sold | $ 28,000 | |||||||||||
| Number of shares of common stock that can be purchased with each warrant | 1 | |||||||||||
| Exercise Price (in dollars per share) | $ 2.00 | |||||||||||
| Warrant liability | 27,130 | 14,750 | ||||||||||
| Change in fair value of warrants | 12,162 | 13,449 | 11,110 | |||||||||
| Outstanding warrants exercised | 3,487,500 | 3,487,500 | 3,487,500 | |||||||||
| Common stock issued pursuant to warrant exercises | 2,210,397 | 2,210,397 | 2,210,397 | 2,210,397 | ||||||||
| Cash proceeds as a result of warrants exercised | $ 2,650 | |||||||||||
| Warrants outstanding | 14,000,000 | 14,000,000 | 14,000,000 | |||||||||