Annual report pursuant to Section 13 and 15(d)

STOCK OPTIONS AND WARRANTS (Details)

v3.21.1
STOCK OPTIONS AND WARRANTS (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Expected dividends 0.00% 0.00%
Minimum [Member]    
Risk-free interest rate 0.27% 2.36%
Expected term (years) 3 years 1 year
Expected volatility 112.97% 99.85%
Maximum [Member]    
Risk-free interest rate 0.29% 2.58%
Expected term (years) 5 years 5 years
Expected volatility 137.27% 143.11%