Annual report pursuant to Section 13 and 15(d)

Share-based compensation - Underwriters Warrants (Details)

v3.22.0.1
Share-based compensation - Underwriters Warrants (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
Y
$ / shares
shares
Dec. 21, 2021
$ / shares
shares
Dec. 16, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Warrants to purchase shares | shares   172,500 172,500
Warrants exercise price | $ / shares   $ 12.50 $ 12.50
Remaining contractual term 3 years 11 months 15 days 5 years  
Number of Shares      
Outstanding at the end of the period | shares 104,083    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Share price | $ / shares $ 10.00    
Remaining contractual term 3 years 11 months 15 days 5 years  
Percentage of warrants exercisable 100.00%    
Intrinsic value of warrants outstanding | $ $ 0    
Measurement Input, Discount Rate [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Warrants and rights outstanding, measurement input 0.37    
Measurement Input, Expected Term [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Warrants and rights outstanding, measurement input | Y 5.0    
Measurement Input, Price Volatility [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Warrants and rights outstanding, measurement input 88.3    
Measurement Input, Expected Dividend Rate [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]      
Warrants and rights outstanding, measurement input 0    
Warrants      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Aggregate grant date fair value | $ $ 1,108,785