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STOCK-BASED COMPENSATION (Details 3) - $ / shares
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Number of Shares    
Unvested at beginning of period 72,222
Restricted stock granted 100,000 100,000
Restricted stock vested (16,667) (11,111)
Unvested at end of period 55,556 88,889
Weighted Average Grant-Date Fair Value per Share    
Unvested at beginning of period
Restricted stock granted 3.64
Restricted stock vested
Unvested at end of period $ 3.64 $ 3.64