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Nature of Operations (Details Narrative) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Accumulated deficit $ (118,394) $ (117,789)    
Working capital 2,200      
Cash $ 1,471 $ 1,923 $ 774 $ 1,211