Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS EQUITY (Details)

v3.21.1
STOCKHOLDERS EQUITY (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dividend yield 0.00% 0.00%
Minimum [Member]    
Expected term 5 years 6 months 5 years 9 months 18 days
Volatility 62.00% 54.00%
Risk-free interest rate 0.33% 1.36%
Maximum [Member]    
Expected term 6 years 3 months 18 days 6 years 3 months 18 days
Volatility 70.00% 63.00%
Risk-free interest rate 1.68% 2.92%