v3.25.4
Recapitalization (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 11, 2025
Dec. 31, 2026
Dec. 31, 2025
Sep. 30, 2025
Sep. 30, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 22, 2025
Sep. 11, 2025
Jul. 28, 2025
Jul. 11, 2025
Recapitalization [Line Items]                      
Common stock par value (in Dollars per share)       $ 0.0001 $ 0.0001 $ 0.0001 $ 0.0001   $ 1    
Stock option           $ 23,000        
Consideration of per share (in Dollars per share)       $ 0.75 $ 0.75            
Trading days         30 days            
Shares issued (in Shares)         12,917            
Market data         $ 6,000,000            
Transaction costs       $ 2,400,000 $ 2,400,000            
Public Warrants [Member]                      
Recapitalization [Line Items]                      
Warrants issued (in Shares)       9,487,500 9,487,500            
Private Placement Warrants [Member]                      
Recapitalization [Line Items]                      
Warrants issued (in Shares)       7,347,500 7,347,500            
Representative’s Warrants [Member]                      
Recapitalization [Line Items]                      
Warrants issued (in Shares)       569,250 569,250            
Forecast [Member]                      
Recapitalization [Line Items]                      
Consideration of per share (in Dollars per share)               $ 0.14      
PIPE Convertible Notes [Member]                      
Recapitalization [Line Items]                      
Aggregate purchase price $ 20,000,000,000                    
Senior Secured Convertible Promissory Notes [Member]                      
Recapitalization [Line Items]                      
Common stock exchanged shares (in Shares)         55,612            
Conversion percentage (in Dollars per share)       $ 37.5 $ 37.5            
Legacy Profusa Common Stock [Member]                      
Recapitalization [Line Items]                      
Conversion percentage (in Dollars per share)       25.5 25.5            
Common Stock [Member]                      
Recapitalization [Line Items]                      
Common stock par value (in Dollars per share)       $ 1,000,000 $ 1,000,000       $ 1 $ 0.0001  
Common stock exchanged shares (in Shares) [1]       82,377              
Company common stock, shares (in Shares)         51,666            
Additional paid in capital account       $ 1,700,000 $ 1,700,000            
Merger Agreement [Member]                      
Recapitalization [Line Items]                      
Equity valuation         $ 155,000,000            
Common stock par value (in Dollars per share)       $ 750 $ 750            
Original issuance discount 10.00%                    
Merger Agreement [Member] | Senior Secured Convertible Promissory Notes [Member]                      
Recapitalization [Line Items]                      
Common stock exchanged shares (in Shares)         73,896            
PIPE Subscription Agreement [Member]                      
Recapitalization [Line Items]                      
Aggregate principal amount         $ 10,000,000            
Original issuance discount         10.00%            
Maturity date         18 months            
Stock option         $ 750            
Weighted average price per share, percentage         95.00%            
Trading days         10 days            
PIPE Subscription Agreement [Member] | PIPE Convertible Notes [Member]                      
Recapitalization [Line Items]                      
Aggregate principal amount $ 22,222,222                    
Aggregate purchase price $ 20,000,000                    
Milestone III [Member]                      
Recapitalization [Line Items]                      
Market data         $ 6,000,000            
Revenue-based milestones         $ 0            
Current probability perentage         0.00%            
Milestones I and II [Member]                      
Recapitalization [Line Items]                      
Revenue-based milestones         $ 1,700,000            
Milestone III and IV [Member]                      
Recapitalization [Line Items]                      
Revenue-based milestones         $ 0            
Business Combination [Member]                      
Recapitalization [Line Items]                      
Outstanding common stock                     100.00%
Milestone I Earnout Rights [Member]                      
Recapitalization [Line Items]                      
Consideration of per share (in Dollars per share)       937.5 $ 937.5            
Milestone II Earnout Rights [Member]                      
Recapitalization [Line Items]                      
Conversion percentage (in Dollars per share)       1,087.5 1,087.5            
Consideration of per share (in Dollars per share)       1,087.5 $ 1,087.5            
Trading days         30 days            
Milestone II Earnout Rights [Member] | Common Stock [Member]                      
Recapitalization [Line Items]                      
Trading days         20 days            
Milestone III Earnout Rights [Member] | Forecast [Member]                      
Recapitalization [Line Items]                      
Funding amount     $ 6,000,000                
Milestone IV Earnout Rights [Member] | Forecast [Member]                      
Recapitalization [Line Items]                      
Achievement of revenue   $ 11,864,000                  
Minimum [Member] | Merger Agreement [Member]                      
Recapitalization [Line Items]                      
Exchange ratio share value (in Dollars per share)       70.5 $ 70.5            
Minimum [Member] | Milestone I Earnout Rights [Member]                      
Recapitalization [Line Items]                      
Trading days         20 days            
Maximum [Member] | Merger Agreement [Member]                      
Recapitalization [Line Items]                      
Exchange ratio share value (in Dollars per share)       $ 705 $ 705            
Maximum [Member] | Milestone I Earnout Rights [Member]                      
Recapitalization [Line Items]                      
Trading days         30 days            
IPO [Member]                      
Recapitalization [Line Items]                      
Transaction costs       $ 15,100,000 $ 15,100,000            
IPO [Member] | Private Placement Warrants [Member]                      
Recapitalization [Line Items]                      
Warrants issued (in Shares)       7,347,500 7,347,500            
[1] Retroactively restated for the Reverse Stock Split as described in Note 2 and the reverse recapitalization as described in Note 3.