Annual report pursuant to Section 13 and 15(d)

Organization and Summary of Significant Accounting Policies (Details 2)

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Organization and Summary of Significant Accounting Policies (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Fair value, beginning of period $ 8,240 $ 3,611
Issuance of warrants 0 2,863
Exercise of warrants (4,686) 0
Change in fair value (1,737) 1,766
Fair value, end of period $ 1,817 $ 8,240