Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Details)

v3.21.2
Share-based compensation (Details)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Nov. 11, 2019
shares
Mar. 31, 2020
USD ($)
director
shares
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
shares
Sep. 30, 2020
USD ($)
shares
Nov. 10, 2019
shares
Stock Awards [Abstract]              
Share-based compensation | $     $ 660 $ 1,543 $ 3,517 $ 7,047  
Number of non-employee directors | director   3          
Restricted Stock              
Stock Awards [Abstract]              
Share-based compensation | $   $ 500          
Restricted Stock | Director              
Stock Awards [Abstract]              
Awards granted (in shares)   75,000          
Restricted Stock | Officer              
Stock Awards [Abstract]              
Awards granted (in shares)   993          
2019 Plan              
Stock Awards [Abstract]              
Awards available for issuance (in shares)             1,083,334
Amended 2019 Plan              
Stock Awards [Abstract]              
Awards available for issuance (in shares) 1,500,000   2,700,000   2,700,000    
Annual percentage increase in awards authorized 10.00%            
Amended 2019 Plan | Stock options              
Stock Awards [Abstract]              
Options granted (in shares)         1,429,408 50,002  
Amended 2019 Plan | Stock options | Minimum              
Stock Awards [Abstract]              
Vesting period         2 years    
Amended 2019 Plan | Stock options | Maximum              
Stock Awards [Abstract]              
Vesting period         3 years