Annual report pursuant to Section 13 and 15(d)

Note 12 - Stock-based Compensation - Assumptions (Details)

v3.22.1
Note 12 - Stock-based Compensation - Assumptions (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dividend yield 0.00% 0.00%
Expected term (Year)   5 years
Minimum [Member]    
Risk-free interest rate 0.46% 0.26%
Expected term (Year) 2 years 6 months  
Expected volatility 46.00% 65.80%
Maximum [Member]    
Risk-free interest rate 1.26% 0.39%
Expected term (Year) 5 years  
Expected volatility 92.00% 90.30%