Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Stock Option Activity (Details)

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STOCK-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)
9 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2017
Number of Awards      
Outstanding, beginning of period (shares)   2,023,500  
Exercised/Released (shares)   (86,333)  
Cancelled/Forfeited (shares)   (16,500)  
Outstanding, end of period (shares) 2,023,500 1,920,667  
Vested and exercisable, end of the period (shares)     1,327,266
Vested and expected to vest, end of the period (shares)     1,920,667
Weighted Average Exercise Price      
Outstanding, beginning of period (usd per share) $ 1.66 $ 1.67 $ 1.67
Exercised/Released (usd per share)   1.29  
Cancelled/Forfeited (usd per share)   1.62  
Outstanding, end of period (usd per share) 1.66 1.67  
Vested and exercisable, end of the period (usd per share)     1.85
Vested and expected to vest, end of the period (usd per share)     $ 1.67
Weighted Average Fair Value      
Outstanding, beginning of period (usd per share)   1.23  
Exercised/Released (usd per share)   1.41  
Cancelled/Forfeited (usd per share)   1.38  
Outstanding, end of period (usd per share) $ 1.23 1.22  
Vested and exercisable, end of the period (usd per share)   1.39  
Vested and expected to vest, end of the period (usd per share)   $ 1.22  
Weighted Average Remaining Contractual Life (Years)      
Outstanding, end of period   1 year 6 months 11 days  
Vested and exercisable, end of the period   1 year 4 months 6 days  
Vested and expected to vest, end of the period   1 year 6 months 11 days  
Aggregate Intrinsic Value      
Outstanding, beginning of period $ 228,180 $ 999,487  
Exercised/Released 109,900 42,532  
Cancelled/Forfeited   2,348  
Outstanding, end of period $ 228,180 $ 999,487 $ 999,487
Vested and exercisable, end of the period     563,856
Vested and expected to vest, end of the period     $ 999,487
Number of Awards, Unvested      
Unvested Outstanding, beginning of period (shares)   1,145,500  
Cancelled/Forfeited (shares)   (5,267)  
Vested, outstanding shares (shares)   (546,832)  
Unvested Outstanding, end of period (shares) 1,145,500 593,401  
Weighted Average Exercise Price, Unvested      
Unvested Outstanding, beginning of period (usd per share)   $ 1.30  
Cancelled/Forfeited (usd per share)   1.42  
Vested, outstanding shares (usd per share)   1.32  
Unvested Outstanding, end of period (usd per share) $ 1.30 1.28  
Weighted Average Grant Date Fair Value, Unvested      
Unvested Outstanding, beginning of period (usd per share)   0.87  
Cancelled/Forfeited (usd per share)   1.06  
Vested, outstanding shares (usd per share)   0.90  
Unvested Outstanding, end of period (usd per share) $ 0.87 $ 0.84  
Weighted Average Remaining Amortization Period (Years), Unvested      
Unvested Outstanding, end of period   11 months 19 days