v3.25.0.1
Trade and other receivables (Details) - GBP (£)
£ in Thousands
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of offsetting of financial assets [line items]          
R&D tax relief receivable £ 8,686     £ 16,416  
Government grants and VAT receivable 4,349     4,060  
Prepayments 4,576     5,062  
Other receivables 634     875  
Amounts due from related party 52        
Total trade and other receivables 18,297 £ 21,159 £ 20,058 26,413 £ 18,864
HMRC SME Scheme          
Disclosure of offsetting of financial assets [line items]          
R&D tax relief receivable 0     15,838  
HMRC RDEC Scheme          
Disclosure of offsetting of financial assets [line items]          
R&D tax relief receivable £ 8,686     £ 578