|
Fair Value of Financial Instruments (Details) (USD $)
|
3 Months Ended | 6 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 12 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Dec. 31, 2011
|
Jun. 30, 2012
Recurring [Member]
|
Dec. 31, 2011
Recurring [Member]
|
Jun. 30, 2012
Recurring [Member]
Level 1 [Member]
|
Dec. 31, 2011
Recurring [Member]
Level 1 [Member]
|
Jun. 30, 2012
Recurring [Member]
Level 2 [Member]
|
Dec. 31, 2011
Recurring [Member]
Level 2 [Member]
|
Jun. 30, 2012
Recurring [Member]
Level 3 [Member]
|
Dec. 31, 2011
Recurring [Member]
Level 3 [Member]
|
Jun. 30, 2012
Recurring [Member]
Warrant [Member]
|
Dec. 31, 2011
Recurring [Member]
Warrant [Member]
|
Jun. 30, 2012
Recurring [Member]
Preferred stock [Member]
|
Dec. 31, 2011
Recurring [Member]
Preferred stock [Member]
|
|
| Liabilities [Abstract] | |||||||||||||||||
| Derivative liability - warrants | $ 335,000 | $ 335,000 | $ 1,507,000 | $ 335,000 | $ 1,507,000 | $ 0 | $ 0 | $ 355,000 | $ 1,507,000 | $ 0 | $ 0 | ||||||
| Derivative liability - preferred stock | 16,300,000 | 16,300,000 | 4,430,000 | 16,300,000 | 4,430,000 | 0 | 0 | 0 | 0 | 16,300,000 | 4,430,000 | ||||||
| Gain on derivative | 431,000 | 939,000 | 1,172,000 | 2,174,000 | 1,172,000 | 3,580,000 | 1,410,000 | ||||||||||
| Loss on derivative | $ 9,410,000 | $ (403,000) | $ 11,870,000 | $ 420,000 | $ (11,870,000) | ||||||||||||
| Period used as base for volatility | 1 year | ||||||||||||||||