v3.26.1
Organization, Description of Business, Going Concern and Significant Risks and Uncertainties (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 30, 2025
Sep. 11, 2025
Jul. 28, 2025
Feb. 11, 2025
Dec. 31, 2025
Dec. 31, 2024
Oct. 20, 2025
Jul. 11, 2025
Organization, Description of Business, Going Concern and Significant Risks and Uncertainties [Line Items]                
Incorporated date         May 11, 2009      
Working capital deficit         $ 18,500      
Net loss         (35,823) $ (9,230)    
Cash in operating activities         (16,248) $ (2,066)    
Purchase price $ 2,000     $ 9,000        
Cash         $ 10,000      
Market value   $ 50,000            
Common stock, par value (in Dollars per share)   $ 1     $ 0.0001 $ 0.0001 $ 0.0001  
PIPE Convertible Note [Member]                
Organization, Description of Business, Going Concern and Significant Risks and Uncertainties [Line Items]                
Cash in operating activities         $ (16,200)      
Principal amount $ 2,200     $ 10,000        
Percentage of original issue discount 10.00%     10.00%        
Legacy Profusa [Member]                
Organization, Description of Business, Going Concern and Significant Risks and Uncertainties [Line Items]                
Percentage of owns outstanding common stock               100.00%
Common Stock [Member]                
Organization, Description of Business, Going Concern and Significant Risks and Uncertainties [Line Items]                
Net loss            
Sale of shares value     $ 100,000   $ 10,300      
Common stock, par value (in Dollars per share)           $ 0.0001