v3.26.1
Related party transactions and balances - Sales to a related party (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Related Party Transaction [Line Items]        
Revenue $ 31,885,552 $ 30,998,260 $ 62,387,012 $ 64,210,808
Related Party        
Related Party Transaction [Line Items]        
Revenue 774,720 624,675 1,685,876 1,360,236
Foremost Worldwide Co., Ltd. | Related Party        
Related Party Transaction [Line Items]        
Revenue $ 774,720 $ 624,675 $ 1,685,876 $ 1,360,236