|
Organization and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2012
|
Jun. 30, 2011
|
|
| Fair value of the warrant liability | ||||
| Fair value, beginning of period | $ 3,627 | $ 0 | $ 3,611 | $ 0 |
| Issuance of warrants | 2,863 | 5,474 | 2,863 | 5,474 |
| Change in fair value | (1,955) | 1,630 | (1,939) | 1,630 |
| Fair value,end of period | $ 4,535 | $ 7,104 | $ 4,535 | $ 7,104 |