v3.26.1
Share-based compensation expenses - Restriction of ordinary shares held by senior management (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Jun. 28, 2019
installment
shares
Dec. 31, 2025
USD ($)
installment
$ / shares
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jul. 31, 2018
$ / shares
May 31, 2018
$ / shares
Share-based compensation expenses            
Annual vesting installments | installment 4 4        
Weighted average grant date fair value of options granted (in dollars per share) | $ / shares         $ 1.4506 $ 1.2785
Share-based compensation expenses allocated from Jimu Parent   $ 14 $ 0 $ (972)    
Restricted share            
Share-based compensation expenses            
Restricted shares, issued | shares 1,863,043          
Share-based compensation expenses allocated from Jimu Parent   0 $ 0 $ 1    
Unrecognized share-based compensation expenses   0        
Jimu Parent            
Share-based compensation expenses            
Unrecognized share-based compensation expenses   $ 0        
Jimu Parent | Restricted share            
Share-based compensation expenses            
Weighted average grant date fair value of options granted (in dollars per share) | $ / shares   $ 0.42