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Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Assets | $ 721,354,111 |  | $ 721,354,111 |  | $ 728,345,729
Liabilities | 173,429,102 |  | 173,429,102 |  | 165,626,276
Other Investment Income (Loss) | $ (3,233,467) | $ 8,428,017 | (12,806,569) | $ 15,671,077 |
Ceded Premiums Earned |  |  | $ 4,140,742 | 2,453,929 |
Stock Issued |  |  |  | 13,399,161 |
Transfer from Investments |  |  |  | $ 1,474,292 |
Minimum [Member] |  |  |  |  |
Lessor, Operating Lease, Term of Contract (Month) | 1 month |  | 1 month |  |
Maximum [Member] |  |  |  |  |
Lessor, Operating Lease, Term of Contract (Month) | 3 years |  | 3 years |  |
The 24th Street Funds, Special Purpose Entities [Member] |  |  |  |  |
Investment Owned, Fair Value | $ 30,500,000 |  | $ 30,500,000 |  | 46,900,000
Other Investment Income (Loss) |  |  | 6,600,000 |  |
Fund Distributions |  |  | 4,700,000 |  |
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |
Assets | 32,000,000 |  | 32,000,000 |  | 48,700,000
Liabilities | $ 2,600 |  | $ 2,600 |  | $ 27,000

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