v3.26.1
Property, plant and equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Reconciliation of plant and equipment      
Balance at beginning   $ 1  
Depreciation $ 12   $ 9
Balance at end 97   1
Cost      
Reconciliation of plant and equipment      
Balance at beginning 140 225  
Written-off (140) (85)  
Business combination - merger transaction 22    
Additions 92    
Balance at end 114 140 225
Accumulated depreciation      
Reconciliation of plant and equipment      
Balance at beginning (140) (224)  
Written-off (140) (84)  
Business combination - merger transaction (5)    
Depreciation 12    
Balance at end (17) (140) (224)
Computer equipment      
Reconciliation of plant and equipment      
Balance at end 92    
Computer equipment | Cost      
Reconciliation of plant and equipment      
Balance at beginning 117 117  
Written-off (117)    
Business combination - merger transaction 22    
Additions 87    
Balance at end 109 117 117
Computer equipment | Accumulated depreciation      
Reconciliation of plant and equipment      
Balance at beginning (117) (117)  
Written-off (117)    
Business combination - merger transaction (5)    
Depreciation 12    
Balance at end (17) (117) (117)
Furniture and fitting | Cost      
Reconciliation of plant and equipment      
Balance at beginning 20 20  
Written-off (20)    
Balance at end   20 20
Furniture and fitting | Accumulated depreciation      
Reconciliation of plant and equipment      
Balance at beginning (20) (20)  
Written-off (20)    
Balance at end   (20) (20)
Office equipment      
Reconciliation of plant and equipment      
Balance at end 5    
Office equipment | Cost      
Reconciliation of plant and equipment      
Balance at beginning 3 3  
Written-off (3)    
Additions 5    
Balance at end 5 3 3
Office equipment | Accumulated depreciation      
Reconciliation of plant and equipment      
Balance at beginning (3) (3)  
Written-off $ (3)    
Balance at end   (3) (3)
Leasehold improvement      
Reconciliation of plant and equipment      
Balance at beginning   1  
Balance at end     1
Leasehold improvement | Cost      
Reconciliation of plant and equipment      
Balance at beginning   85  
Written-off   (85)  
Balance at end     85
Leasehold improvement | Accumulated depreciation      
Reconciliation of plant and equipment      
Balance at beginning   (84)  
Written-off   $ (84)  
Balance at end     $ (84)