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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Numerator        
Net income (loss) available to common shareholders $ (1,587) $ (2,976) $ 9,772 $ (12,760)
Effect of dilutive securities        
Derivative liability - warrants (1,800)
Accretion on convertible preferred stock 222
Numerator for diluted income (loss) per common share $ (1,587) $ (2,976) $ 8,194 $ (12,760)
Denominator:        
Weighted average shares used to compute basic income (loss) per common share 27,051,000 17,780,000 23,414,000 17,727,000
Effect of dilutive securities:        
Derivative liability - warrants $ 54
Convertible preferred stock 2,862
Stock options 16
Denominator for diluted income (loss) per common share $ 27,051 $ 17,780 $ 26,346 $ 17,727
Basic income (loss) per common share $ (0.06) $ (0.17) $ 0.42 $ (0.72)
Diluted income (loss) per common share $ (0.06) $ (0.17) $ 0.31 $ (0.72)