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Subsequent Events (Details) - USD ($)
 6 Months Ended 12 Months Ended
Jul. 28, 2025
Jul. 11, 2025
Feb. 11, 2025
Dec. 22, 2021
Apr. 30, 2021
Jun. 30, 2025
Dec. 31, 2024
Dec. 31, 2025
Mar. 31, 2025
Mar. 18, 2025
Feb. 28, 2025
Feb. 21, 2025
Jun. 30, 2024
Dec. 31, 2023
Dec. 31, 2022
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable             $ 13,300,000                
Common stock per share (in Dollars per share)           $ 0.0001 $ 0.0001             $ 0.0001  
Common stock shares issued (in Shares)           5,604,651 5,604,651             5,604,651  
Common stock shares outstanding (in Shares)           5,604,651 5,604,651             5,604,651  
Vested options outstanding and exercisable           2,364,814                  
Percentage of volume-weighted average price           97.00%                  
Maximum purchase price value           $ 5,000,000                  
Percentage of average daily traded value           100.00%                  
Trading days           5 days                  
Percentage of outstanding common stock           19.90%                  
Percentage of ownership outstanding rate           9.99%                  
Purchase of common stock (in Shares)           900,000                  
Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable           $ 19,500,000                  
Senior secured convertible promissory notes           19,533,000 $ 18,419,000           $ 17,348,000 $ 16,316,000 $ 13,981,000
Senior Convertibles Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable           $ 27,900,000                  
NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Percentage of original issue discount     10.00%                        
Payable in cash             $ 100,000                
Percentage of non-redeeming public shareholders             100.00%                
Tax expenses                       $ 23,200      
Common stock per share (in Dollars per share)           $ 0.0001 $ 0.0001                
Preferred stock shares outstanding (in Shares)                        
Common stock shares issued (in Shares)           5,193,750 5,193,750             5,193,750  
Common stock shares outstanding (in Shares)           5,193,750 5,193,750             5,193,750  
Preferred Stock, Shares Issued (in Shares)                        
NorthView Acquisition Corp [Member] | Forecast [Member]                              
Subsequent Events (Details) [Line Items]                              
Earnout revenue               $ 30,000              
NorthView Acquisition Corp [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Senior secured convertible promissory notes     $ 22,222,222                        
Purchase price     20,000,000                        
Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares issued (in Shares)           6,984,666                  
Common Stock [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares issued (in Shares)       450,000 5,175,000                    
Common stock shares outstanding (in Shares)           738,075 738,075                
Preferred Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Preferred stock shares outstanding (in Shares)           17,863,934                  
Merger Agreement [Member] | Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock aggregate value           $ 255,958,617                  
Common stock shares issued (in Shares)           25,595,862                  
Securities Purchase Agreement [Member] | NorthView Acquisition Corp [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Senior secured convertible promissory notes     12,222,222                        
Purchase price     11,000,000                        
Sponsor [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock aggregate value         $ 25,000                    
Dissolution Expense Waiver [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Payable in cash             $ 100,000                
No Redemption Scenario [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Percentage of non-redeeming public shareholders             100.00%                
Subsequent Event [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable                 $ 800,000   $ 800,000        
Preferred stock shares outstanding (in Shares)   17,863,934                          
Common stock shares issued (in Shares)   477,284                          
Shares allocated to merger consideration (in Shares)   2,901,833                          
Purchase price $ 5,000,000                            
Percentage of average daily traded value of common stock 100.00%                            
Number of trading days 5 years                            
Net proceeds from sales $ 5,000,000                            
Purchase of share           $ 1,000,000                  
Aggregate purchase price amount 100,000,000                            
Subsequent Event [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable   $ 19,600,000                          
Converted price per share (in Dollars per share)   $ 10                          
Incentive equity value of converted share amount   $ 29,018,330                          
Subsequent Event [Member] | Senior Convertibles Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable   $ 20,800,000                          
Converted shares (in Shares)   5,189,138                          
Converted price per share (in Dollars per share)   $ 4                          
Subsequent Event [Member] | Nonrecourse Promissory Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable   $ 2.3                          
Subsequent Event [Member] | Senior Convertible Bridge Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Total convertible notes payable   2,850,000                          
Purchase price   $ 3,100,000                          
Converted shares (in Shares)   1,277,162                          
Converted price per share (in Dollars per share)   $ 2.22                          
Repaid in cash   $ 250,000                          
Subsequent Event [Member] | Senior Secured Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Purchase price   $ 2,800,000                          
Converted shares (in Shares)   5,542,261                          
Converted price per share (in Dollars per share)   $ 0.5                          
Subsequent Event [Member] | Senior Secured Note [Member]                              
Subsequent Events (Details) [Line Items]                              
Converted shares (in Shares)   5,542,261                          
Subsequent Event [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Tax expenses                       $ 23,400      
Common stock shares outstanding (in Shares)                   5,348,311          
Subsequent Event [Member] | NorthView Acquisition Corp [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Senior secured convertible promissory notes     22,222,222                        
Purchase price     $ 20,000,000                        
Subsequent Event [Member] | Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares issued (in Shares)   6,984,666                          
Common stock shares outstanding (in Shares)   1,938,392                          
Subsequent Event [Member] | Profusa Preferred Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares issued (in Shares)   241,567                          
Preferred Stock, Shares Issued (in Shares)   6,178,315                          
Subsequent Event [Member] | Merger Agreement [Member] | Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Converted equity valuation amount   $ 155,000,000                          
Common stock per share (in Dollars per share)   $ 10                          
Subsequent Event [Member] | Securities Purchase Agreement [Member]                              
Subsequent Events (Details) [Line Items]                              
Purchase price $ 100,000,000                            
Percentage of lowest volume-weighted average price 97.00%                            
Subsequent Event [Member] | Sponsor [Member] | Senior Secured Note [Member]                              
Subsequent Events (Details) [Line Items]                              
Converted shares (in Shares)   710,220                          
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock per share (in Dollars per share)     $ 0.0001                        
Common stock shares issued (in Shares)     15,000,000                        
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Senior secured convertible promissory notes     $ 5,555,555                        
Purchase price     $ 5,000,000                        
New Profusa Common Stock [Member] | Subsequent Event [Member] | Convertible Notes [Member]                              
Subsequent Events (Details) [Line Items]                              
Converted shares (in Shares)   2,801,697                          
Converted price per share (in Dollars per share)   $ 7                          
Maximum [Member] | Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares outstanding (in Shares)           5,604,651                  
Maximum [Member] | Subsequent Event [Member]                              
Subsequent Events (Details) [Line Items]                              
Net proceeds from sales $ 5,000,000                            
Minimum [Member] | Common Stock [Member]                              
Subsequent Events (Details) [Line Items]                              
Common stock shares outstanding (in Shares)           1,380,015                  
Minimum [Member] | Subsequent Event [Member]                              
Subsequent Events (Details) [Line Items]                              
Net proceeds from sales $ 5,000,000                            
Consummation of Business Combination [Member] | Subsequent Event [Member]                              
Subsequent Events (Details) [Line Items]                              
Ownership percentage   100.00%