Annual report pursuant to Section 13 and 15(d)

Note 13 - Summary of Stock Options - Valuation Assumptions for Stock Options (Details)

v3.20.4
Note 13 - Summary of Stock Options - Valuation Assumptions for Stock Options (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Expected term (Year) 5 years 6 years
Average volatility 82.00% 70.00%
Risk-free interest rate 0.37% 1.62%
Dividend yield