Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details)

v2.4.1.9
Organization and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]    
Total warrant liability at December 31, 2014 $ 5,578us-gaap_WarrantsAndRightsOutstanding  
Adjustment to record warrants at fair value 3,279us-gaap_FairValueAdjustmentOfWarrants 864us-gaap_FairValueAdjustmentOfWarrants
Total warrant liability at March 31, 2015 $ 8,857us-gaap_WarrantsAndRightsOutstanding