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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
May 08, 2025
Mar. 31, 2025
Mar. 18, 2025
Feb. 28, 2025
Feb. 21, 2025
Jun. 30, 2024
Dec. 31, 2023
Dec. 31, 2022
Subsequent Events [Line Items]                                
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                    
Common Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock shares issued (in Shares)           6,984,666                    
Preferred Stock [Member]                                
Subsequent Events [Line Items]                                
Preferred stock shares outstanding (in Shares)           17,863,934                    
Merger Agreement [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock aggregate value           $ 255,958,617                    
Common stock shares issued (in Shares)           25,595,862                    
Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Total convertible notes payable                   $ 800,000   $ 800,000        
Aggregate purchase price $ 5,000,000                              
Percentage of average daily traded value of common stock 100.00%                              
Number of trading days 5 years                              
Common stock shares issued (in Shares)   477,284                            
Shares allocated to merger consideration (in Shares)   2,901,833                            
Net proceeds from sales $ 5,000,000                              
Purchase of share           $ 1,000,000                    
Subsequent Event [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock shares issued (in Shares)   6,984,666                            
Common stock shares outstanding (in Shares)   1,938,392                            
Subsequent Event [Member] | Preferred Stock [Member]                                
Subsequent Events [Line Items]                                
Preferred stock shares outstanding (in Shares)   17,863,934                            
Subsequent Event [Member] | Profusa Preferred Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock shares issued (in Shares)   241,567                            
Preferred Stock, Shares Issued (in Shares)   6,178,315                            
Subsequent Event [Member] | Securities Purchase Agreement [Member]                                
Subsequent Events [Line Items]                                
Aggregate purchase price $ 100,000,000                              
Percentage of lowest volume-weighted average price 97.00%                              
Subsequent Event [Member] | Merger Agreement [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Converted equity valuation amount   $ 155,000,000                            
Common stock per share (in Dollars per share)   $ 10                            
Convertible Notes [Member]                                
Subsequent Events [Line Items]                                
Senior secured convertible promissory notes           $ 19,533,000 $ 18,419,000             $ 17,348,000 $ 16,316,000 $ 13,981,000
Convertible Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [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                            
Nonrecourse Promissory Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Total convertible notes payable   2,300,000                            
Senior Convertibles Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [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                            
Senior Convertible Bridge Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [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                            
Senior Secured Convertible Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Purchase price   $ 2,800,000                            
Converted shares (in Shares)   5,542,261                            
Converted price per share (in Dollars per share)   $ 0.5                            
Senior Secured Note [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Converted shares (in Shares)   5,542,261                            
NorthView Acquisition Corp [Member]                                
Subsequent Events [Line Items]                                
Percentage of original issue discount     10.00%     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                  
Common stock aggregate value             $ 661,012                  
Common stock shares issued (in Shares)           52,784                    
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)                          
Converted price per share (in Dollars per share)     $ 10           $ 1.25              
NorthView Acquisition Corp [Member] | Warrant [Member]                                
Subsequent Events [Line Items]                                
Issuance of warrant (in Shares)       1                        
NorthView Acquisition Corp [Member] | Forecast [Member]                                
Subsequent Events [Line Items]                                
Earnout revenue               $ 30,000                
NorthView Acquisition Corp [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Issuance of warrant (in Shares)       1                        
Common stock shares issued (in Shares)       450,000 5,175,000                      
Common stock shares outstanding (in Shares)           738,075 738,075                  
NorthView Acquisition Corp [Member] | Common Stock [Member] | Warrant [Member]                                
Subsequent Events [Line Items]                                
Issuance of warrant (in Shares)       1                        
NorthView Acquisition Corp [Member] | Dissolution Expense Waiver [Member]                                
Subsequent Events [Line Items]                                
Payable in cash             $ 100,000                  
NorthView Acquisition Corp [Member] | No Redemption Scenario [Member]                                
Subsequent Events [Line Items]                                
Percentage of non-redeeming public shareholders             100.00%                  
NorthView Acquisition Corp [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Tax expenses                         $ 23,400      
Common stock shares outstanding (in Shares)                     5,348,311          
NorthView Acquisition Corp [Member] | Subsequent Event [Member] | Securities Purchase Agreement [Member]                                
Subsequent Events [Line Items]                                
Aggregate purchase price   $ 100,000,000                            
Percentage of lowest volume-weighted average price   97.00%                            
Percentage of average daily traded value of common stock   100.00%                            
Number of trading days   5 days                            
Percentage of limit for outstanding common stock   9.99%                            
NorthView Acquisition Corp [Member] | Subsequent Event [Member] | Securities Purchase Agreement [Member] | Warrant [Member]                                
Subsequent Events [Line Items]                                
Issuance of warrant (in Shares)   900,000                            
NorthView Acquisition Corp [Member] | Business Combination Profusa [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Ownership percentage   100.00%                            
NorthView Acquisition Corp [Member] | Convertible Notes [Member]                                
Subsequent Events [Line Items]                                
Senior secured convertible promissory notes     $ 22,222,222                          
Purchase price     $ 20,000,000                          
NorthView Acquisition Corp [Member] | Convertible Notes [Member] | Securities Purchase Agreement [Member]                                
Subsequent Events [Line Items]                                
Senior secured convertible promissory notes           $ 12,222,222                    
Purchase price           11,000,000                    
Convertible Notes [Member]                                
Subsequent Events [Line Items]                                
Total convertible notes payable           14,100,000 $ 13,300,000                  
Convertible Notes [Member] | Promissory Note [Member]                                
Subsequent Events [Line Items]                                
Total convertible notes payable           19,500,000                    
Senior Convertibles Notes [Member]                                
Subsequent Events [Line Items]                                
Total convertible notes payable           $ 27,900,000                    
Sponsor [Member] | Senior Secured Note [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Converted shares (in Shares)   710,220                            
Sponsor [Member] | NorthView Acquisition Corp [Member]                                
Subsequent Events [Line Items]                                
Common stock aggregate value         $ 25,000                      
New Profusa Common Stock [Member] | Convertible Notes [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Converted shares (in Shares)   2,801,697                            
Converted price per share (in Dollars per share)   $ 7                            
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member]                                
Subsequent Events [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 [Line Items]                                
Senior secured convertible promissory notes           $ 5,555,555                    
Purchase price           $ 5,000,000                    
Minimum [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock shares outstanding (in Shares)           1,380,015                    
Minimum [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Net proceeds from sales $ 5,000,000                              
Minimum [Member] | NorthView Acquisition Corp [Member] | Subsequent Event [Member] | Securities Purchase Agreement [Member]                                
Subsequent Events [Line Items]                                
Aggregate purchase price   $ 5,000,000                            
Maximum [Member] | Common Stock [Member]                                
Subsequent Events [Line Items]                                
Common stock shares outstanding (in Shares)           5,604,651                    
Maximum [Member] | Subsequent Event [Member]                                
Subsequent Events [Line Items]                                
Net proceeds from sales $ 5,000,000