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SHARE-BASED PAYMENTS - Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity (Details)
 9 Months Ended
Sep. 30, 2016
$ / shares
shares
Stock-option  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]  
Number of nonvested shares, beginning of period (in shares) | shares 177,698
Granted, nonvested, number of shares (in shares) | shares 449,540
Vested, number of shares (in shares) | shares (357,634)
Nonvested options forfeited, number of shares (in shares) | shares (28,045)
Number of nonvested shares, end of period (in shares) | shares 241,559
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share) | $ / shares $ 3.44
Granted, nonvested, weighted average grant date fair value (in dollars per share) | $ / shares 1.29
Vested, weighted average grant date fair value (in dollars per share) | $ / shares 2.15
Nonvested options forfeited, weighted average grant date fair value (in dollars per share) | $ / shares 2.08
Nonvested, weighted average grant date fair value, end of period (in dollars per share) | $ / shares $ 1.50
RSU  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]  
Number of nonvested shares, beginning of period (in shares) | shares 272,866
Granted, nonvested, number of shares (in shares) | shares 1,205,336
Vested, number of shares (in shares) | shares (138,608)
Nonvested options forfeited, number of shares (in shares) | shares (9,125)
Number of nonvested shares, end of period (in shares) | shares 1,330,469
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]  
Nonvested, weighted average grant date fair value, beginning of period (in dollars per share) | $ / shares $ 4.03
Granted, nonvested, weighted average grant date fair value (in dollars per share) | $ / shares 2.14
Vested, weighted average grant date fair value (in dollars per share) | $ / shares 4.65
Nonvested options forfeited, weighted average grant date fair value (in dollars per share) | $ / shares 5.39
Nonvested, weighted average grant date fair value, end of period (in dollars per share) | $ / shares $ 2.37