|
Organization and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Sep. 30, 2013
|
Sep. 30, 2012
|
|
| Total warrant liability at December 31, 2012 | $ 8,240 | |||
| Fair value of warrants transferred to equity upon exercise | (4,686) | |||
| Adjustment to record warrants at fair value upon exercise and at September 30, 2013 | (1,010) | (3,673) | 1,306 | (1,734) |
| Total warrant liability at September 30, 2013 | $ 2,248 | $ 2,248 | ||