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NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Detail Textuals) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Aug. 30, 2016
Jun. 23, 2016
May 27, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Dec. 31, 2014
Nature Of Operations And Basis Of Presentation [Line Items]                  
Net loss applicable to common stockholders       $ (2,996) $ (2,759) $ (9,102) $ (11,118)    
Accumulated deficit       (332,200)   (332,200)   $ (323,159)  
Cash and cash equivalents       $ 18,029 $ 22,728 $ 18,029 $ 22,728 $ 20,440 $ 24,189
Sale of stock, value $ 1,200                
Stockholders' equity, Reverse stock split     one-for-twelve            
Common stock, par value (in dollars per share)       $ 0.001   $ 0.001   $ 0.001  
Common stock, shares outstanding       4,251,229   4,251,229   2,965,208  
Before Reverse Stock Split                  
Nature Of Operations And Basis Of Presentation [Line Items]                  
Common stock, shares outstanding     36,075,730            
After Reverse Stock Split                  
Nature Of Operations And Basis Of Presentation [Line Items]                  
Common stock, shares outstanding     3,006,311            
FBR Sales Agreement                  
Nature Of Operations And Basis Of Presentation [Line Items]                  
Shares sold (in shares) 477,876 766,149              
Sale of stock, value $ 2,800 $ 3,900