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SHAREHOLDERS' EQUITY - Summary of the Company's RSU activity and related information (Details) - Restricted Stock Units (RSUs) [Member]
 12 Months Ended
Dec. 31, 2019
$ / shares
shares
Stockholders' Equity Note [Line Items]  
Number of shares, RSUs outstanding at beginning of year | shares 930,596
Number of shares, Granted | shares 403,198
Number of shares, Vested | shares (337,500)
Number of shares, Forfeited | shares (19,125)
Number of shares, RSUs outstanding at end of year | shares 977,169
Weighted average grant date fair value, RSUs Outstanding at beginning of year | $ / shares $ 7.47
Weighted average grant date fair value, Granted | $ / shares 15.92
Weighted average grant date fair value, Vested | $ / shares 7.18
Weighted average grant date fair value, Forfeited | $ / shares 10.43
Weighted average grant date fair value, RSUs outstanding at end of year | $ / shares $ 11.00