Annual report pursuant to Section 13 and 15(d)

EMPLOYEE STOCK OPTIONS AND RESTRICTED STOCK AWARD PLAN (Details 5)

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EMPLOYEE STOCK OPTIONS AND RESTRICTED STOCK AWARD PLAN (Details 5) - Restricted Stock [Member] - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock, Outstanding at beginning of the year 330,900 0
Restricted stock, Granted 619,880 330,900
Restricted stock, Forfeited or rescinded (7,800) 0
Restricted stock, Vested (64,620) 0
Restricted stock, Outstanding at end of year 878,360 330,900
Weighted-Average Grant Date Fair Value, Outstanding at beginning of the year $ 13.44 $ 0
Weighted-Average Grant Date Fair Value, Granted 4.82 13.44
Weighted-Average Grant Date Fair Value, Forfeited or rescinded 13.44 0
Weighted-Average Grant Date Fair Value, Vested 0 0
Weighted-Average Grant Date Fair Value, Outstanding at end of year $ 13.44 $ 13.44