v3.26.1
Non-current assets - property, plant and equipment (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Plant and equipment [Abstract]    
Plant and equipment $ 254 $ 335
Reconciliation of written down [Abstract]    
Opening balance 335 289
Additions   20
Transfers in/(out)   88
Closing balance 254 335
Depreciation expense $ (81) (62)
Minimum [Member]    
Reconciliation of written down [Abstract]    
Plant and equipment useful life 1 year  
Maximum [Member]    
Reconciliation of written down [Abstract]    
Plant and equipment useful life 4 years  
Leasehold Improvements [Member]    
Plant and equipment [Abstract]    
Plant and equipment $ 65 85
Reconciliation of written down [Abstract]    
Opening balance 85 0
Additions   0
Transfers in/(out)   88
Closing balance 65 85
Depreciation expense (20) (3)
Plant and Equipment [Member]    
Plant and equipment [Abstract]    
Plant and equipment 189 250
Reconciliation of written down [Abstract]    
Opening balance 250 289
Additions   20
Transfers in/(out)   0
Closing balance 189 250
Depreciation expense (61) (59)
Plant and Equipment - Right-of-use [Member] | Leasehold Improvements [Member]    
Plant and equipment [Abstract]    
Plant and equipment 88 88
Reconciliation of written down [Abstract]    
Opening balance 88  
Closing balance 88 88
Plant and Equipment - Right-of-use [Member] | Plant and Equipment [Member]    
Plant and equipment [Abstract]    
Plant and equipment 626 626
Reconciliation of written down [Abstract]    
Opening balance 626  
Closing balance 626 626
Accumulated Depreciation [Member] | Leasehold Improvements [Member]    
Plant and equipment [Abstract]    
Plant and equipment (23) (3)
Reconciliation of written down [Abstract]    
Opening balance (3)  
Closing balance (23) (3)
Accumulated Depreciation [Member] | Plant and Equipment [Member]    
Plant and equipment [Abstract]    
Plant and equipment (437) (376)
Reconciliation of written down [Abstract]    
Opening balance (376)  
Closing balance $ (437) $ (376)