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NET LOSS PER SHARE ATTRIBUTABLE TO COMMON STOCK (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
NET LOSS PER SHARE ATTRIBUTABLE TO COMMON STOCK.        
Net loss $ (2,870,000) $ (3,882,000) $ (21,339,000) $ (9,723,000)
Income allocable to unvested restricted stock   (15,000)   (44,000)
Basic loss attributable to common stock (2,870,000) (3,897,000) (21,339,000) (9,767,000)
Diluted loss attributable to common stock $ (2,870,000) $ (3,897,000) $ (21,339,000) $ (9,767,000)
Weighted average common shares outstanding:        
Basic 21,571,513 14,011,789 20,386,202 14,010,557
Diluted 21,571,513 14,011,789 20,386,202 14,010,557
Basic loss attributable to a share of common stock $ (0.13) $ (0.28) $ (1.05) $ (0.70)
Diluted loss attributable to a share of common stock $ (0.13) $ (0.28) $ (1.05) $ (0.70)