Annual report pursuant to Section 13 and 15(d)

Share-based compensation - Unregistered Securities (Details)

v3.22.0.1
Share-based compensation - Unregistered Securities (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense $ 0  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Share price $ 10.00  
Share-based compensation expense $ 2,000,000  
Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted 229,984 519,163
Exercise price $ 6.85 $ 10.00
Remaining contractual term 9 years 1 month 2 days 9 years 11 months 23 days
Intrinsic value of options outstanding $ 0 $ 0
Intrinsic value of options exercisable 0 0
Aggregate grant date fair value $ 1,150,284 $ 3,441,687
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Discount rates   0.39%
Expected life 5 years  
Expected volatility   88.30%
Expected dividends $ 0 $ 0
Fair market value   $ 9.80
Plan | Non-qualified stock options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted 292,500  
Term 10 years  
Exercise price $ 10.00  
Vesting percentage 100.00%  
Remaining contractual term 8 years 11 months 15 days  
Unrecognized compensation expense $ 0 $ 0
Intrinsic value of options outstanding 0  
Aggregate grant date fair value $ 1,987,831  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Discount rates 0.37%  
Expected life 5 years  
Expected volatility 88.30%  
Expected dividends $ 0  
Share price $ 10.00  
Share-based compensation expense   $ 1,987,831