v3.26.1
Share based compensation - Additional information (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jul. 31, 2025
Jun. 30, 2024
Jan. 31, 2023
Dec. 31, 2022
Jul. 31, 2021
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2019
Share based compensation                  
Aggregate number of share options granted (in shares)           7,850,532      
Exercise price per share (in USD per share)           $ 0.34      
Granted (in USD per share)           $ 1.66      
Total unrecognized compensation expense           $ 7,036      
Weighted-average period           3 years 2 months 23 days      
Directors Or Officers                  
Share based compensation                  
Aggregate number of share options granted (in shares)           202,532 246,724 93,904  
Share Incentive Plan, 2022                  
Share based compensation                  
Aggregate number of share options granted (in shares)           7,850,352 5,821,580 93,904  
Weighted average exercise price (in USD per share)           $ 1.71 $ 1.83 $ 1.65  
Nonvested (in shares)           $ 46,764 $ 23,901 $ 55,086  
Exercisable, intrinsic value           $ 812 $ 136 $ 0  
Granted (in USD per share)           $ 1.66 $ 1.24 $ 3.12  
2021 Option Plan                  
Share based compensation                  
Exercise price per share (in USD per share)         $ 9.70        
Number of Shares Authorized (in shares)         16,802,069        
2021 Option Plan | Tranche three                  
Share based compensation                  
Vesting percentage           25.00%      
2021 Option Plan | Tranche two                  
Share based compensation                  
Vesting percentage           25.00%      
2021 Option Plan | Tranche Four                  
Share based compensation                  
Vesting percentage           25.00%      
2021 Option Plan | Tranche one                  
Share based compensation                  
Vesting percentage           25.00%      
RSU                  
Share based compensation                  
Total unrecognized compensation expense           $ 159      
Weighted-average period           2 years 8 months 12 days      
RSU | Tranche three                  
Share based compensation                  
Service period           12 months      
RSU | Tranche two                  
Share based compensation                  
Service period           12 months      
RSU | Tranche one                  
Share based compensation                  
Service period           12 months      
RSU | After the completion of a qualified IPO                  
Share based compensation                  
Service period           12 months      
RSU | 2019 RSU Plan                  
Share based compensation                  
Shares transferred (in shares)                 23,859,142
Percent of total outstanding shares                 10.00%
Vesting contractual term                 10 years
Remining contractual term                 5 years
Aggregate number of share options granted (in shares)           230,000 0 4,342,364  
Forfeitures and Expirations (in shares) 230,000                
RSU | 2019 RSU Plan | Share-Based Payment Arrangement, Employee                  
Share based compensation                  
Aggregate number of shares granted (in shares)           2,396,730 4,935,321 4,175,352  
Incremental cost           $ 28 $ 1,458 $ 2,349  
RSU | Share Incentive Plan, 2022                  
Share based compensation                  
Vesting contractual term                 10 years
Remining contractual term                 4 years
Aggregate number of shares granted (in shares)       18,903,472   97,195 1,256,490 460,671  
RSU | Share Incentive Plan, 2022 | Directors Or Officers                  
Share based compensation                  
Granted (in shares)           76,923 824,830 460,671  
RSU | 2021 Option Plan | Share-Based Payment Arrangement, Employee                  
Share based compensation                  
Number of awards modified (in shares)     63,464            
Performance Shares                  
Share based compensation                  
Aggregate number of shares granted (in shares)   6,000,000       933,334      
Weighted average exercise price (in USD per share)           $ 1.72 $ 1.69    
Exercisable, intrinsic other than option value           $ 781      
Performance Shares | Share Incentive Plan, 2022                  
Share based compensation                  
Vesting contractual term                 10 years
Remining contractual term                 4 years