Organization and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
|
Fair value of the warrant liability | ||||
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 June 30,2013 | (5,362) | (1,955) | (2,317) | (1,939) |
Total warrant liability at June 30, 2013 | $ 1,237 | $ 1,237 |