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WARRANT LIABILITY (Details 3) - $ / shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Weighted average assumptions:    
Risk-free interest rate 0.20% 1.68%
Expected dividend yield 0.00% 0.00%
Expected option life (years) 2 years 8 months 23 days 3 years 6 months 26 days
Expected stock price volatility 73.93% 61.61%
Weighted average fair value $ 0.77 $ 0.22