v3.25.1
Cover - shares
3 Months Ended
Mar. 31, 2025
May 01, 2025
Document Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2025  
Document Transition Report false  
Entity File Number 001-40367  
Entity Registrant Name BARINTHUS BIOTHERAPEUTICS PLC  
Entity Incorporation, State or Country Code X0  
Entity Address, Address Line One Unit 6-10, Zeus Building  
Entity Address, Address Line Two Rutherford Avenue  
Entity Address, City or Town Harwell, Didcot  
Entity Address, Country GB  
Entity Address, Postal Zip Code OX11 0DF  
City Area Code +44 (0)  
Local Phone Number 1865 818 808  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   40,339,395
Entity Central Index Key 0001828185  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Tax Identification Number 00-0000000  
American Depositary Shares    
Document Information    
Title of 12(b) Security American Depositary Shares  
Trading Symbol BRNS  
Security Exchange Name NASDAQ  
Ordinary shares    
Document Information    
Title of 12(b) Security Ordinary shares, nominal value £0.000025 per share