Quarterly report pursuant to Section 13 or 15(d)

Organization (Details Textual)

v3.5.0.2
Organization (Details Textual) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Dec. 31, 2014
Organization [Line Items]        
Retained Earnings (Accumulated Deficit), Total $ (100,806)   $ (91,390)  
Cash and Cash Equivalents, at Carrying Value 4,661 $ 16,251 $ 19,552 $ 25,190
Net Cash Provided by (Used in) Operating Activities, Continuing Operations, Total $ (14,122) $ (8,462)