Annual report pursuant to Section 13 and 15(d)

STOCK BASED COMPENSATION - Common Stock to Consultants (Details)

v3.22.0.1
STOCK BASED COMPENSATION - Common Stock to Consultants (Details) - Consultant
12 Months Ended
Dec. 31, 2020
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk-free interest rate, Minimum 0.60%
Risk-free interest rate, Maximum 0.80%
Expected volatility, Minimum 54.30%
Expected volatility, Maximum 54.80%
Expected life, Minimum (in years) 9 years 4 months 24 days
Expected life, Maximum (in years) 10 years
Fair value of Common Stock, Minimum $ 1.40
Fair value of Common Stock, Maximum $ 7.98