Annual report pursuant to Section 13 and 15(d)

Stock Based Compensation - Weighted Average Assumptions (Details)

v3.22.0.1
Stock Based Compensation - Weighted Average Assumptions (Details) - Stock Options [Member]
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Weighted average assumptions    
Dividend yield 0.00% 0.00%
Expected volatility 83.00% 100.00%
Risk-free interest rate 0.95% 0.72%
Expected term 5 years 7 months 28 days 5 years 7 months 20 days