Note 2 - Investments - Components of Net Investment Income (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Investment income	$ 2,188,011	$ 2,254,805	$ 4,328,940	$ 4,198,646
Less investment expenses	(161,158)	(264,143)	(270,866)	(483,256)
Investment income, net	2,026,853	1,990,662	4,058,074	3,715,390
Fixed Maturities [Member]
Investment income	1,482,256	1,516,706	2,873,250	2,854,332
Mortgages [Member]
Investment income	535,531	598,842	1,085,379	1,039,737
Equity Securities [Member]
Investment income	49,709	65,026	101,713	134,503
Other Invested Assets [Member]
Investment income (expense)	37,351	32,602	72,608	62,113
Cash and Cash Equivalents [Member]
Investment income	$ 83,164	$ 41,629	$ 195,990	$ 107,961

Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.