v3.26.1
Taxation (Details)
¥ in Thousands, $ in Thousands, $ in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2025
HKD ($)
Dec. 31, 2025
AUD ($)
Dec. 31, 2025
SGD ($)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
HKD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
HKD ($)
Dec. 31, 2025
CNY (¥)
Taxation                    
Statutory income tax rate 30.00% 30.00% 30.00% 30.00% 30.00% 30.00% 30.00% 30.00% 30.00%  
Assessable profits $ (1,324)         $ (2,148)   $ (11,053)    
Retained earnings (370,181)         $ (370,331)        
Unrecognized tax benefits $ 0                  
Hong Kong subsidiary                    
Taxation                    
Assessable profits   $ 0         $ 0   $ 0  
Cayman Islands                    
Taxation                    
Withholding tax to be imposed upon payments of dividends to shareholders (as a percent) 0.00% 0.00% 0.00% 0.00% 0.00%          
Hong Kong | Profit Below 2 Million HK Dollar                    
Taxation                    
Statutory income tax rate 8.25% 8.25% 8.25% 8.25% 8.25%          
Hong Kong | Profit Above 2 Million HK Dollar                    
Taxation                    
Statutory income tax rate 16.50% 16.50% 16.50% 16.50% 16.50%          
PRC                    
Taxation                    
Statutory income tax rate 25.00% 25.00% 25.00% 25.00% 25.00%          
Maximum preferential withholding tax rate on dividends paid by foreign investment enterprise 5.00% 5.00% 5.00% 5.00% 5.00%          
Retained earnings | ¥                   ¥ 0
PRC | FIE                    
Taxation                    
Withholding income tax rate on dividends Distributed (as a percent) 10.00% 10.00% 10.00% 10.00% 10.00%          
PRC | 25% Of first Rmb 3.0 Million of profits taxed at 20%                    
Taxation                    
Statutory income tax rate 20.00% 20.00% 20.00% 20.00% 20.00%          
Percentage required to qualified for small and low-profit enterprises 25.00%                 25.00%
Threshold portion of profit eligible for tax relief | ¥         ¥ 3,000          
Australia                    
Taxation                    
Statutory income tax rate 30.00% 30.00% 30.00% 30.00% 30.00%          
Amendment period 4 years 4 years 4 years 4 years 4 years          
Australia | Aggregate turnover                    
Taxation                    
Statutory income tax rate 25.00% 25.00% 25.00% 25.00% 25.00%          
Aggregate turnover     $ 50              
Singapore                    
Taxation                    
Statutory income tax rate 17.00% 17.00% 17.00% 17.00% 17.00%          
Singapore | Exemption Rate Of 75%                    
Taxation                    
Federal statutory income 75.00% 75.00% 75.00% 75.00% 75.00%          
Threshold taxable income       $ 10,000            
Singapore | Further Exemption Rate                    
Taxation                    
Federal statutory income 50.00% 50.00% 50.00% 50.00% 50.00%          
Threshold taxable income       $ 190,000