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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Numerator        
Net income (loss) available to common shareholders $ (1,497) $ 29 $ 11,359 $ (9,782)
Effect of dilutive securities        
Derivative liability - warrants   $ (1,454) (1,534)  
Accretion on convertible preferred stock     222  
Numerator for diluted income (loss) per common share $ (1,497) $ (1,425) $ 10,047 $ (9,782)
Denominator:        
Weighted average shares used to compute basic income (loss) per common share 24,435,000 17,717,000 21,555,000 17,667,000
Effect of dilutive securities:        
Derivative liability - warrants   $ 3,459 $ 82  
Convertible preferred stock     2,305  
Stock options     309  
Denominator for diluted income (loss) per common share $ 24,435 $ 21,176 $ 24,251 $ 17,667
Basic income (loss) per common share $ (0.06) $ 0.00 $ 0.53 $ (0.55)
Diluted income (loss) per common share $ (0.06) $ (0.07) $ 0.41 $ (0.55)