v3.25.1
Commitments and Contingencies (Details) - USD ($)
 3 Months Ended 12 Months Ended
Feb. 11, 2025
Dec. 19, 2024
Dec. 22, 2021
Mar. 31, 2025
Dec. 31, 2026
Dec. 31, 2025
Jan. 19, 2025
Dec. 31, 2024
Nov. 07, 2022
Commitments and Contingencies [Line Items]                  
Number of days for underwriter options       30 days          
Underwriting discount amount       $ 3,450,000          
Initial public offering gross proceed percentage       3.68%          
Business combination percentage rate                 3.68%
Cash percentage                 27.50%
Equity percentage                 72.50%
Payable in cash             $ 2,000,000    
Warrants term       5 years          
Lockup period       180 days          
Convertible note offering percentage   9.00%              
Initial closing amount $ 9,000,000                
Common stock, par value (in Dollars per share)       $ 0.0001       $ 0.0001  
Aggregate shares issued (in Shares)       5,193,750       5,193,750  
Aggregate share value       $ 519       $ 519  
Convertible Notes [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount 22,222,222                
Purchase price $ 20,000,000                
Original issue discount 10.00%                
Initial Notes [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount $ 10,000,000                
Second Purchase [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount 2,222,222                
Purchase price $ 2,000,000                
Original issue discount 10.00%                
Forecast [Member]                  
Commitments and Contingencies [Line Items]                  
Earnout revenue         $ 11,864,000 $ 99,702,000      
Securities Purchase Agreement [Member] | Convertible Notes [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount $ 12,222,222                
Purchase price $ 11,000,000                
Original issue discount 10.00%                
Business Combination [Member]                  
Commitments and Contingencies [Line Items]                  
Cash       15,000,000          
I-Bankers and Dawson James [Member]                  
Commitments and Contingencies [Line Items]                  
Gross proceeds       $ 6,986,250          
Representative shares issued (in Shares)     37,500            
Warrant issued (in Shares)       569,250          
Investor [Member] | Convertible Notes [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount $ 4,444,444                
Purchase price $ 4,000,000                
Original issue discount 10.00%                
New Profusa Common Stock [Member]                  
Commitments and Contingencies [Line Items]                  
Common stock, par value (in Dollars per share) $ 0.0001                
Aggregate shares issued (in Shares) 15,000,000                
Aggregate share value $ 35,000,000                
Trading price per share (in Dollars per share) $ 4                
Number of trading days 5 days                
New Profusa Common Stock [Member] | Convertible Notes [Member]                  
Commitments and Contingencies [Line Items]                  
Aggregate principal amount $ 5,555,555                
Purchase price $ 5,000,000                
Original issue discount 10.00%                
New Profusa Common Stock [Member] | Second Purchase [Member]                  
Commitments and Contingencies [Line Items]                  
Purchase price $ 2,000,000                
IPO [Member]                  
Commitments and Contingencies [Line Items]                  
units issued (in Shares)     18,975,000 2,475,000          
Cash underwriting discount       1.82%          
Gross proceeds     $ 189,750,000            
Common stock, par value (in Dollars per share)     $ 0.0001            
IPO [Member] | Warrant [Member]                  
Commitments and Contingencies [Line Items]                  
Warrant issued (in Shares)       17,404,250          
Over-Allotment Option [Member]                  
Commitments and Contingencies [Line Items]                  
units issued (in Shares)     2,475,000            
Warrant issued (in Shares)       74,250          
Aggregate exercise price       $ 6,546,375          
Over-Allotment Option [Member] | Warrant [Member]                  
Commitments and Contingencies [Line Items]                  
Warrant issued (in Shares)       569,250          
Exercise price per share (in Dollars per share)       $ 11.5          
Over-Allotment Option [Member] | I-Bankers and Dawson James [Member]                  
Commitments and Contingencies [Line Items]                  
Representative shares issued (in Shares)     450,000