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STOCKHOLDERS EQUITY (Details)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dividend yield 0.00% 0.00%
Volatility 69.00% 62.00%
Minimum [Member]    
Expected term 5 years 6 months 5 years 9 months 18 days
Risk-free interest rate 0.80% 0.47%
Maximum [Member]    
Expected term 6 years 3 months 18 days 6 years 3 months 18 days
Risk-free interest rate 1.04% 1.68%