Note 2 - Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Assets	$ 713,072,289	$ 728,345,729
Liabilities	177,000,323	165,626,276
Other Investment Income (Loss)	$ (19,874,269)	29,059,717
Number of Reporting Units	4
Ceded Premiums Earned	$ 5,900,000	4,300,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	0	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 0	0
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	4 years
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Lessor, Operating Lease, Term of Contract (Month)	1 month
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	20 years
Finite-Lived Intangible Asset, Useful Life (Year)	50 years
Lessor, Operating Lease, Term of Contract (Month)	3 years
The 24th Street Funds, Special Purpose Entities [Member]
Investment Owned, Fair Value	$ 24,300,000	46,900,000
Other Investment Income (Loss)	(6,900,000)	8,000,000
Fund Distributions	11,300,000	26,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Assets	32,000,000	49,000,000
Liabilities	$ 1,900	$ 27,000