v3.26.1
BASIS OF PRESENTATION (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
subsidiary
$ / shares
Dec. 31, 2025
$ / shares
Sep. 29, 2025
BASIS OF PRESENTATION      
Number of wholly owned subsidiaries | subsidiary 1    
Assets $ 0    
Liabilities $ 0    
Common stock, par value | $ / shares $ 0.0001 $ 0.0001  
Beacon Topco, Inc | Barinthus Bio shareholders      
BASIS OF PRESENTATION      
Ownership interest (in percent)     34.00%
Beacon Topco, Inc | Clywedog stockholders      
BASIS OF PRESENTATION      
Ownership interest (in percent)     66.00%