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Fair Value of Financial Instruments (Details) (USD $)
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3 Months Ended | 3 Months Ended | 12 Months Ended | 3 Months Ended | 12 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Dec. 31, 2012
|
Mar. 31, 2013
Recurring [Member]
Warrants [Member]
|
Dec. 31, 2012
Recurring [Member]
Warrants [Member]
|
Mar. 31, 2013
Recurring [Member]
Warrants [Member]
Level 1 [Member]
|
Dec. 31, 2012
Recurring [Member]
Warrants [Member]
Level 1 [Member]
|
Mar. 31, 2013
Recurring [Member]
Warrants [Member]
Level 2 [Member]
|
Dec. 31, 2012
Recurring [Member]
Warrants [Member]
Level 2 [Member]
|
Mar. 31, 2013
Recurring [Member]
Warrants [Member]
Level 3 [Member]
|
Dec. 31, 2012
Recurring [Member]
Warrants [Member]
Level 3 [Member]
|
Mar. 31, 2013
Recurring [Member]
Preferred Stock [Member]
|
Dec. 31, 2012
Recurring [Member]
Preferred Stock [Member]
|
Mar. 31, 2013
Recurring [Member]
Preferred Stock [Member]
Level 1 [Member]
|
Dec. 31, 2012
Recurring [Member]
Preferred Stock [Member]
Level 1 [Member]
|
Mar. 31, 2013
Recurring [Member]
Preferred Stock [Member]
Level 2 [Member]
|
Dec. 31, 2012
Recurring [Member]
Preferred Stock [Member]
Level 2 [Member]
|
Mar. 31, 2013
Recurring [Member]
Preferred Stock [Member]
Level 3 [Member]
|
Dec. 31, 2012
Recurring [Member]
Preferred Stock [Member]
Level 3 [Member]
|
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| Liabilities [Abstract] | |||||||||||||||||||
| Derivative liability - warrants | $ 518,000 | $ 271,000 | $ 518,000 | $ 271,000 | $ 0 | $ 0 | $ 518,000 | $ 271,000 | $ 0 | $ 0 | |||||||||
| Derivative liability - preferred stock | 4,420,000 | 9,200,000 | 4,420,000 | 9,200,000 | 0 | 0 | 0 | 0 | 4,420,000 | 9,200,000 | |||||||||
| Total Gains (Losses) | $ 4,780,000 | $ (2,460,000) | $ (247,000) | $ 1,236,000 | $ 4,780,000 | $ (4,770,000) | |||||||||||||
| Period used as base for volatility | 1 year | ||||||||||||||||||