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STOCK-BASED COMPENSATION Restricted stock units (Details) - Restricted stock units - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total compensation cost not yet recognized $ 265  
Weighted average service period 1 year 6 months 26 days  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Non-vested restricted stock (units), number of shares of restricted stock (unit), At the Beginning of the Year (shares) 0 119,940
Granted, Number of share of restricted stock (shares) 712,440 349,742
Vested, number of share of restricted stock (shares) (212,440) (427,182)
Forfeited, number of share of restricted stock (shares) 0 (42,500)
Non-vested restricted stock (units), number of shares of restricted stock (unit), At the End of the Period (shares) 500,000 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]    
Non-vested restricted stock (units), weighted average grant date fair value, At the Beginning of the Year (usd per share) $ 0.00 $ 3.57
Granted, weighted average grant date fair value (usd per share) 2.64 2.47
Vested, weighted average grant date fair value (usd per share) 2.28 2.71
Forfeited, weighted average grant date fair value (usd per share) 0.00 3.21
Non-vested restricted stock (units), weighted average grant date fair value, At the End of the Period (usd per share) $ 2.79 $ 0.00
Non-Employee Director    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]    
Granted, Number of share of restricted stock (shares) 212,440