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SHAREHOLDERS' EQUITY - Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Details)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Stockholders' Equity Note [Abstract]      
Expected life (years) 7 years 7 years 7 years
Expected forfeiture rate 0.00% 0.00% 0.00%
Expected volatility 50.00% 50.00% 53.00%
Dividend yield 0.00% 0.00% 0.00%
Risk-free interest rate 1.90% 2.90% 2.00%