v3.25.4
Income tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Expected Tax Charge/(Credit) and Reconciles to Actual Tax Charge/(Credit) [Abstract]      
Loss before tax $ 48,258 $ 38,961 $ 35,587
Tax credit calculated at the domestic tax rate 12.5% (6,032) (4,870) (4,448)
Tax effects of [Abstract]      
Losses for which no deferred tax asset was recognized 6,029 4,027 4,200
Income taxable at a higher rate of tax 583 1,594 118
Other permanent differences (580) (751) 130
Tax charge/(credit) $ 0 $ 0 $ 0
Domestic tax rate 12.50% 12.50% 12.50%