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Commitments and Contingencies (Details) - USD ($) |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 17, 2025 | Feb. 11, 2025 | Jan. 19, 2025 | Dec. 19, 2024 | Jun. 15, 2023 | Aug. 01, 2022 | Dec. 22, 2021 | Aug. 31, 2022 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Jul. 11, 2025 | May 08, 2025 | Dec. 31, 2022 | Nov. 07, 2022
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rent payable |  |  |  |  |  | $ 25,000 |  | $ 25,000 |  |  |  |  |  |  |  |  |  |
Variable lease costs |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |
Lease expense |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  |  |  |
Rent payable |  |  |  |  |  |  |  |  |  |  | $ 25,000 |  |  |  |  |  |  |
Short-term leases |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |
Variable lease costs |  |  |  |  |  |  |  |  |  | $ 100,000 | 200,000 | $ 100,000 |  |  |  |  |  |
Lease expense |  |  |  |  |  |  |  |  | $ 75,000 |  | 150,000 |  |  |  |  |  |  |
Gross proceeds |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 |  | 50,000,000 |  |  |  |  |
Convertible note offering percentage |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other exepnses |  |  |  |  |  |  |  |  |  |  |  |  | $ 120,000 | $ 202,000 |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  |  |  | $ 0.0001 |  | $ 0.0001 |  | $ 0.0001 | $ 0.0001 |  |  |  |
Aggregate shares issued (in Shares) |  |  |  |  |  |  |  |  | 5,604,651 |  | 5,604,651 |  | 5,604,651 | 5,604,651 |  |  |  |
Aggregate share value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate shares issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 477,284 |  |  |
Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | 19,533,000 | $ 17,348,000 | 19,533,000 | 17,348,000 | 18,419,000 | 16,316,000 |  |  | $ 13,981,000 |
Convertible Notes [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trust account balance (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |
Short-Term Leases [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable lease costs |  |  |  |  |  |  |  |  |  |  | $ 300,000 | $ 200,000 |  |  |  |  |  |
Short-Term Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease expense |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000 | $ 300,000 |  |  |  |
NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of days for underwriter options |  |  |  |  |  |  |  |  |  |  | 30 days |  | 30 days |  |  |  |  |
Underwriting discount amount |  |  |  |  |  |  |  |  | $ 3,450,000 |  | $ 3,450,000 |  | $ 3,450,000 |  |  |  |  |
Initial public offering gross proceed percentage |  |  |  |  |  |  |  |  | 3.68% |  | 3.68% |  | 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 |  | 5 years |  | 5 years |  |  |  |  |
Lockup period |  |  |  |  |  |  |  |  |  |  | 180 days |  | 180 days |  |  |  |  |
Cash |  |  |  |  |  |  |  |  | $ 1,300,000 |  | $ 1,300,000 |  |  |  |  |  |  |
Convertible note offering percentage |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset in held in trust |  |  |  |  |  |  |  |  | $ 29,171 |  | $ 29,171 |  |  |  |  | $ 1,250,000 |  |
Trust account balance (in Dollars per share) |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.25 |  |
Payment for fees | $ 418,000 |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Other exepnses | 50,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of net proceeds |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Initial closing amount |  | $ 9,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average price per share percentage |  | 95.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of trading days |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  |  |  | $ 0.0001 |  | $ 0.0001 |  | $ 0.0001 |  |  |  |  |
Aggregate shares issued (in Shares) |  |  |  |  |  |  |  |  | 5,193,750 |  | 5,193,750 |  | 5,193,750 | 5,193,750 |  |  |  |
Legal services |  |  |  |  |  |  |  |  |  |  | $ 90,000 |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price per share (in Dollars per share) |  |  |  |  |  |  | $ 11.5 |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Cash Fee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for fees | 550,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Arrangement Fee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for fees |  |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Business Combination [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of post combination |  |  |  |  | 500,000 |  |  |  |  |  | $ 500,000 |  |  |  |  |  |  |
Closing of business combination |  |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock price (in Dollars per share) |  |  |  |  | $ 2 |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payable in cash |  |  | 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Business Combination [Member] | Advisory Fee [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for fees |  |  |  |  | $ 750,000 |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
units issued (in Shares) |  |  |  |  |  |  | 18,975,000 |  | 2,475,000 |  | 2,475,000 |  | 2,475,000 |  |  |  |  |
Cash underwriting discount |  |  |  |  |  |  |  |  |  |  | 1.82% |  | 1.82% |  |  |  |  |
Gross proceeds |  |  |  |  |  |  | $ 189,750,000 |  |  |  |  |  |  |  |  |  |  |
Common stock price (in Dollars per share) |  |  |  |  |  |  | $ 10.1 |  |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | IPO [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant issued (in Shares) |  |  |  |  |  |  |  |  | 17,404,250 |  | 17,404,250 |  | 17,404,250 |  |  |  |  |
NorthView Acquisition Corp [Member] | Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
units issued (in Shares) |  |  |  |  |  |  | 2,475,000 |  |  |  |  |  |  |  |  |  |  |
Warrant issued (in Shares) |  |  |  |  |  |  |  |  | 74,250 |  | 74,250 |  | 74,250 |  |  |  |  |
Aggregate exercise price |  |  |  |  |  |  |  |  |  |  | $ 6,546,375 |  | $ 6,546,375 |  |  |  |  |
Common stock price (in Dollars per share) |  |  |  |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Over-Allotment Option [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant issued (in Shares) |  |  |  |  |  |  |  |  | 569,250 |  | 569,250 |  | 569,250 |  |  |  |  |
Exercise price per share (in Dollars per share) |  |  |  |  |  |  |  |  | $ 11.5 |  | $ 11.5 |  | $ 11.5 |  |  |  |  |
NorthView Acquisition Corp [Member] | Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 22,222,222 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  | $ 20,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original issue discount |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Convertible Notes [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | $ 12,222,222 |  | $ 12,222,222 |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 11,000,000 |  |  |  |  |  |  |
Original issue discount |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Initial Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Initial Notes [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Original issue discount |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
NorthView Acquisition Corp [Member] | Second Purchase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | $ 2,222,222 |  | $ 2,222,222 |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |
Original issue discount |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
I-Bankers and Dawson James [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds |  |  |  |  |  |  |  |  |  |  | $ 6,986,250 |  | $ 6,986,250 |  |  |  |  |
Representative shares issued (in Shares) |  |  |  |  |  |  | 37,500 |  |  |  |  |  |  |  |  |  |  |
Warrant issued (in Shares) |  |  |  |  |  |  |  |  | 569,250 |  | 569,250 |  | 569,250 |  |  |  |  |
I-Bankers and Dawson James [Member] | NorthView Acquisition Corp [Member] | Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Representative shares issued (in Shares) |  |  |  |  |  |  | 450,000 |  |  |  |  |  |  |  |  |  |  |
I-Bankers [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds |  |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dawson James [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds |  |  | $ 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private Placement [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred fees paid | $ 968,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investor [Member] | NorthView Acquisition Corp [Member] | Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | $ 4,444,444 |  | $ 4,444,444 |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 4,000,000 |  |  |  |  |  |  |
Original issue discount |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
Common Stock [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Closing of business combination |  |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |
New Profusa Common Stock [Member] | Convertible Notes [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trust account balance (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7 |  |  |
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of trading days |  |  |  |  |  |  |  |  |  |  | 5 days |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  |  |  | $ 0.0001 |  | $ 0.0001 |  |  |  |  |  |  |
Aggregate shares issued (in Shares) |  |  |  |  |  |  |  |  | 15,000,000 |  | 15,000,000 |  |  |  |  |  |  |
Aggregate share value |  |  |  |  |  |  |  |  | $ 35,000,000 |  | $ 35,000,000 |  |  |  |  |  |  |
Trading price per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 4 |  |  |  |  |  |  |
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member] | Convertible Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount |  |  |  |  |  |  |  |  | $ 5,555,555 |  | $ 5,555,555 |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |  |
Original issue discount |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
New Profusa Common Stock [Member] | NorthView Acquisition Corp [Member] | Second Purchase [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase price |  |  |  |  |  |  |  |  |  |  | $ 2,000,000 |  |  |  |  |  |  |

X
- Definition Business combination percentage. + References No definition available. + Details
Name: | ck0001859807_BusinessCombinationPercentageRate
Namespace Prefix: | ck0001859807_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Cash percentage. + References No definition available. + Details
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