Annual report pursuant to Section 13 and 15(d)

Organization (Details Textual)

v3.3.1.900
Organization (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Organization [Line Items]        
Retained Earnings (Accumulated Deficit), Total $ (91,391) $ (71,801)    
Cash and Cash Equivalents, at Carrying Value, Total 19,552 25,190 $ 805 $ 1,738
Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total (18,269) $ (15,007) $ (9,063)  
Average Monthly Cash Burn $ 1,520