v3.25.4
Income Taxes - Schedule of Reconciliation of Income Tax Credit (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Effective Income Tax Rate Reconciliation, Amount [Abstract]    
Loss before tax $ (88,601) $ (44,464)
UK Statutory Income Tax (Benefit) at 25% (22,150) (11,116)
Tax credits (1,948)  
Income not taxable   3,356
Foreign Tax Rate Differential   308
Change in valuation allowance 14,857 (15,423)
Non-taxable and non-deductible items    
Stock Compensation 1,726  
Research and Development costs 7,881  
Other reconciling items (108)  
Effect of overseas taxes   (202)
Total $ (11) $ (845)
Effective Income Tax Rate Reconciliation, Percent [Abstract]    
UK Statutory Income Tax (Benefit) at 25% 25.00% 25.00%
Tax credits 2.20%  
Changes in valuation allowance (16.77%)  
Non-taxable and non-deductible items    
Stock Compensation (1.95%)  
Research and Development costs (8.89%)  
Other reconciling items 0.12%  
Total 0.01%  
Other    
Effective Income Tax Rate Reconciliation, Amount [Abstract]    
Foreign Tax Rate Differential $ (269)  
Non-taxable and non-deductible items    
Foreign tax effects 0.30%