v3.26.1
Major transactions - Disposal group classified as held for sale (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Jan. 01, 2024
Assets        
Total assets $ 256,379 $ 129,834 $ 36,851 $ 36,851
Current liabilities        
Lease liabilities 867 230    
Total current liabilities 145,298 99,564   41,399
Non-current liabilities        
Lease liabilities 722 485    
Total liabilities 146,067 100,049 41,399 $ 41,399
General and administrative expenses 28,096 7,269 4,355  
Other gains, net 548 $ 104 $ (145)  
Loss from discontinued operations (2,035)      
Beijing OptAim        
Assets        
Other current assets 17      
Total assets 17      
Current liabilities        
Accrued liabilities and other current liabilities 544      
Lease liabilities 25      
Income tax payable 700      
Total current liabilities 1,269      
Non-current liabilities        
Lease liabilities 8      
Total liabilities 1,277      
General and administrative expenses (2)      
Interest expense, net (1)      
Other gains, net (6)      
Loss on disposal of discontinued operations (253)      
Loss from discontinued operations (262)      
Net cash generated from discontinued operating activities 4      
Net cash used in discontinued financing activities $ (17)