Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Details)

v3.22.1
Share-based compensation (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Feb. 28, 2022
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation   $ 1,091 $ 2,525  
Options outstanding (in shares)   3,206,683   2,684,041
Stock awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based compensation $ 500      
Amended 2019 Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards available for issuance (in shares)   5,614,637    
Options granted (in shares)   525,000 929,834  
Amended 2019 Plan | Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period   10 years    
Amended 2019 Plan | Stock awards        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Awards granted (in shares) 218,345      
Amended 2019 Plan | Minimum | Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   2 years    
Amended 2019 Plan | Maximum | Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   3 years