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Fair Value Measurements - Assets and liabilities at fair value (Details) - USD ($) | Dec. 31, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Liabilities: |  |  |  |
Warrant Liability |  | $ 4,580,100 | $ 4,639,000 | $ 580,500
Level 1 | Recurring |  |  |  |
Assets: |  |  |  |
Marketable securities held in trust account |  | 433,645 | 429,151 | 44,709,805
Level 1 | Recurring | Public Warrants |  |  |  |
Liabilities: |  |  |  |
Warrant Liability |  |  |  | 287,500
Level 2 | Warrant |  |  |  |
Liabilities: |  |  |  |
Warrant Liability | $ 4,580,100 |  | 4,639,000 | 293,000
Level 2 | Recurring | Public Warrants |  |  |  |
Liabilities: |  |  |  |
Warrant Liability |  | 2,270,100 | 2,300,000 |
Level 2 | Recurring | Private Placement Warrants |  |  |  |
Liabilities: |  |  |  |
Warrant Liability |  | $ 2,310,000 | $ 2,339,000 | $ 293,000

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