Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details Textual)

v3.2.0.727
Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Schedule of Organization and Summary of Significant Accounting Policies [Line Items]            
Fair Value Adjustment of Warrants $ 1,185 $ 284 $ 4,464 $ 1,148    
Cash and Cash Equivalents, at Carrying Value, Total $ 11,499 $ 8,853 $ 11,499 $ 8,853 $ 15,470 $ 11,798