Note 2 - Investments - Major Categories of Net Investment Income (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Change in unrealized investment gains (losses)	$ 73,080	$ 457,632	$ (2,043,290)	$ 3,497,851
Gross Investment income	9,569,486	9,798,462	19,000,506	18,394,665
Investment expenses	(642,255)	(687,224)	(1,214,703)	(1,465,144)
Net investment income	8,927,231	9,111,238	17,785,803	16,929,521
Fixed Maturities [Member]
Change in unrealized investment gains (losses)	91,489	631,473	(2,587,513)	4,479,851
Gross Investment income	2,734,698	2,530,774	5,316,105	4,670,728
Gain Loss On Sale Of Investments	41,835	(73,291)	47,357	152,789
Change in unrealized investment gains (losses)	(27,301)	(13,056)	(67,185)	618,110
Fixed Maturities [Member] \| Trinity Life Insurance Company [Member]
Change in unrealized investment gains (losses)	395,099	37,699	405,850	223,632
Equity Securities [Member]
Gross Investment income	114,810	86,081	216,784	163,027
Change in unrealized investment gains (losses)	(106,350)	60,304	63,663	33,128
Equity securities	0	4,222	0	6,944
Other Long-Term Investments [Member]
Gross Investment income	929,687	1,069,651	1,906,527	2,191,549
Unrealized Gain Loss On Investments	1,017	(52,192)	1,069	(52,192)
Mortgages [Member]
Gross Investment income	5,383,012	5,612,876	10,784,741	10,456,826
Gain Loss On Sale Of Investments	0	(1,137)	0	(1,137)
Policy Loans [Member]
Gross Investment income	108,801	88,103	209,226	171,410
Short-Term Investments [Member]
Gross Investment income	298,478	410,977	567,123	741,125
Real Estate Investment [Member]
Gain Loss On Sale Of Investments	$ 0	$ 0	$ 34,462	$ 29,412

Amount of realized gain (loss) from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities.

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Amount, before 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.

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Amount of expenses related to the generation of investment income.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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