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Description of Organization and Business Operations (Details) - USD ($) |  |  |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 9 Months Ended | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 18, 2025 | Sep. 22, 2024 | Sep. 19, 2024 | Sep. 10, 2024 | Mar. 26, 2024 | Mar. 22, 2024 | Dec. 21, 2023 | Apr. 27, 2023 | Mar. 22, 2023 | Aug. 16, 2022 | Dec. 31, 2021 | Dec. 22, 2021 | Oct. 31, 2024 | Jan. 31, 2024 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | May 31, 2025 | Mar. 07, 2025 | Feb. 27, 2025 | Dec. 20, 2024 | Dec. 13, 2024 | May 31, 2024 | Jan. 10, 2024
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.0001 | $ 0.0001 |  |  |  |  |  |  |
Sold at a price per Unit (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.22 |  |  |  |  | $ 2.22 | $ 2.22
Transaction costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,959,726 |  |  |  |  |  |  |  |
Underwriting discount amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,450,000 |  |  |  |  |  |  |  |
Represent shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,570,576 |  |  |  |  |  |  |  |
Representative warrants cost |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 259,527 |  |  |  |  |  |  |  |
Other offering costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 679,623 |  |  |  |  |  |  |  |
Percentage of aggregate fair market value of assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 80.00% |  |  |  |  |  |  |  |
Ownership interest to be acquired on post-transaction company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |
Maturity days |  |  |  |  |  |  |  |  |  |  |  | 185 days |  |  |  |  |  |  |  |  |  |  |  |
Public share percentage |  |  |  |  |  | 100.00% |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Interest expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,556 |  |  |  |  |  |  |  |  |
Trust account to redeeming stockholders |  |  |  |  |  |  |  |  |  |  |  |  | $ 595,439 | $ 1,565,078 |  |  |  |  |  |  |  |  |  |
Convertible working capital |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,500,000 |  |  |  |  | $ 2,500,000 | $ 1,500,000
Public share (in Dollars per share) |  | $ 0.05 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock remaining outstanding (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,193,750 | 5,193,750 |  |  |  |  |  |  |
Contribution amount |  |  | $ 34,376 |  |  |  |  |  |  |  |  |  |  |  |  | $ 36,904 |  |  |  |  |  |  |  |
Deposit |  |  |  | $ 110,714 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,376 | $ 68,752 | $ 36,904 |
Lost interest |  |  |  | 1,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock remaining outstanding after the redemption (in Shares) |  |  | 687,519 |  |  |  |  |  |  |  |  |  |  |  |  | 687,519 | 833,469 |  |  |  |  |  |  |
Aggregate redemption amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 768,980 | $ 2,137,638 |  |  |  |  |  |  |
Net tangible assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000,001 |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,204 | $ 4,519 |  |  |  |  |  |  |
Working capital deficit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,254,024 |  |  |  |  |  |  |  |
Capital contribution |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,000 |  |  |  |  |  |  |  |
Unsecured promissory note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 204,841 |  |  |  |  |  |  |  |
Warrants price per share (in Dollars per share) |  |  |  |  |  |  |  | $ 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,919,796 |  |  |  |  |  |  |  |
Percentage of excise tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 21.00% | 21.00% |  |  |  |  |  |  |
Percentage of fair market value |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stockholders’ deficit of excise tax payable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,880,944 |  |  |  |  |  |  |  |
Excise tax liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 16,838 |  |  |  |  |  |  |  |
Shares redeemed percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |
Percentage of estimated interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% |  |  |  |  |  |  |  |
Percentage of underpayment penalty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |
Percentage of unpaid total liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |  |
Sales and Excise Tax Payable, Current |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,880,944 | $ 1,864,106 |  |  |  |  |  |  |
June, July and August extension [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposit |  |  |  | $ 112,114 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 11.5 |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Price per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 140,663 |  |  |  |  |  |  |  |
Common stock remaining outstanding (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 738,075 |  |  |  |  |  |  |  |
Common Stock [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Stockholders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redemption amount |  |  |  |  | $ 1,088,361 |  | $ 1,565,078 |  | $ 184,845,836 |  |  |  |  |  | $ 595,439 |  |  |  |  |  |  |  |  |
U.S. Federal [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of excise tax |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Working Capital Promissory Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible promissory note |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,908,052 |  |  |  |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) | 532,958 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock remaining outstanding (in Shares) | 5,348,311 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contribution amount | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,376 | $ 15,000 |  |  |  |
Common stock remaining outstanding after the redemption (in Shares) | 154,561 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate redemption amount | $ 6,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) |  |  |  |  | 95,394 |  | 140,663 |  | 18,000,868 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable Shares [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 49,376 |  |  |  |
IPO [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 18,975,000 |  |  |  |  |  |  |  |  |  |  |  |
Common stock, par value (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 0.0001 |  |  |  |  |  |  |  |  |  |  |  |
Sold at a price per Unit (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds |  |  |  |  |  |  |  |  |  |  |  | $ 189,750,000 |  |  |  |  |  |  |  |  |  |  |  |
Investment of cash in trust account |  |  |  |  |  |  |  |  |  |  |  | $ 191,647,500 |  |  |  |  |  |  |  |  |  |  |  |
Price per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 10.1 |  |  |  |  |  |  |  |  |  |  |  |
Operating bank account |  |  |  |  |  |  |  |  |  |  | $ 741,228 |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 140,663 |  |  |  |  |  |  |  |
Outstanding redemption share (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 833,469 |  |  |  |  |  |  |  |
IPO [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 11.5 |  |  |  |  |  |  |  |  |  |  |  |
Common stock remaining outstanding (in Shares) |  |  | 5,881,269 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Over-Allotment Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 2,475,000 |  |  |  |  |  |  |  |  |  |  |  |
Warrants issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 697,500 |  |  |  |  |  |  |  |
Price per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 10 |  |  |  |  |  |  |  |  |  |  |  |
Over-Allotment Option [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11.5 |  |  |  |  |  |  |  |
Rights [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Units issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |
Private Placement Warrants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercise price (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |  |  |  |
Warrants issued (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,347,500 |  |  |  |  |  |  |  |
Generating gross proceeds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,347,500 |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding redemption share (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,027,219 |  |  |  |  |  |  |  |
Public Shares [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock redeemed (in Shares) |  |  | 50,556 |  |  |  |  |  |  |  |  |  |  |  |  | 95,394 |  |  |  |  |  |  |  |
Public Shares [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock remaining outstanding (in Shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,931,825 |  |  |  |  |  |  |  |
Sponsor [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Organization and Business Operations [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Price per share (in Dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10.1 |  |  |  |  |  |  |  |
Convertible working capital |  |  |  |  |  |  |  | $ 1,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Percentage of voting equity interests to be acquired on post transaction in the business combination. + References No definition available. + Details
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Balance Type: | credit
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X
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Namespace Prefix: | nvac_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition United States government treasury bills with a maturity days. + References No definition available. + Details
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- Definition Operating bank account. + References No definition available. + Details
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Namespace Prefix: | nvac_
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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