Note 3 - Fair Value Measurements - Estimated Fair Values of Financial Instruments (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Policy loans	$ 5,722,616	$ 5,132,086
Accrued investment income	6,677,426	6,454,380
Policy claims	3,069,138	3,143,579
Reported Value Measurement [Member]
Policy loans	5,722,616	5,132,086
Other long-term investments	48,677,433	51,276,119
Cash and cash equivalents	39,984,625	39,496,427
Accrued investment income	6,677,426	6,454,380
Total financial assets	358,233,536	353,258,726
Policyholders' account balances	438,119,994	417,120,647
Policy claims	3,069,138	3,143,579
Total financial liabilities	441,189,132	420,264,226
Reported Value Measurement [Member] \| Trinity Life Insurance Company [Member]
Cash and cash equivalents	486,992	3,118,582
Total financial assets	5,340,924	8,417,410
Reported Value Measurement [Member] \| Commercial [Member]
Mortgage loans on real estate	37,698,793	29,884,406
Reported Value Measurement [Member] \| Commercial [Member] \| Trinity Life Insurance Company [Member]
Mortgage loans on real estate	4,853,932	5,298,828
Reported Value Measurement [Member] \| Residential [Member]
Mortgage loans on real estate	219,472,643	221,015,308
Estimate of Fair Value Measurement [Member]
Policy loans	5,722,616	5,132,086
Other long-term investments	52,944,315	55,781,517
Cash and cash equivalents	39,984,625	39,496,427
Accrued investment income	6,677,426	6,454,380
Total financial assets	404,189,873	392,766,777
Policyholders' account balances	375,352,641	360,391,979
Policy claims	3,069,138	3,143,579
Total financial liabilities	378,421,779	363,535,558
Estimate of Fair Value Measurement [Member] \| Trinity Life Insurance Company [Member]
Cash and cash equivalents	486,992	3,118,582
Total financial assets	5,340,924	8,417,410
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member]
Policy loans	0	0
Other long-term investments	0	0
Cash and cash equivalents	39,984,625	39,496,427
Accrued investment income	0	0
Total financial assets	39,984,625	39,496,427
Policyholders' account balances	0	0
Policy claims	0	0
Total financial liabilities	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 1 [Member] \| Trinity Life Insurance Company [Member]
Cash and cash equivalents	486,992	3,118,582
Total financial assets	486,992	3,118,582
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member]
Policy loans	0	0
Other long-term investments	104,927	104,830
Cash and cash equivalents	0	0
Accrued investment income	0	0
Total financial assets	104,927	104,830
Policyholders' account balances	0	0
Policy claims	0	0
Total financial liabilities	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 2 [Member] \| Trinity Life Insurance Company [Member]
Cash and cash equivalents	0	0
Total financial assets	0	0
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member]
Policy loans	5,722,616	5,132,086
Other long-term investments	52,839,388	55,676,687
Cash and cash equivalents	0	0
Accrued investment income	6,677,426	6,454,380
Total financial assets	364,100,321	353,165,520
Policyholders' account balances	375,352,641	360,391,979
Policy claims	3,069,138	3,143,579
Total financial liabilities	378,421,779	363,535,558
Estimate of Fair Value Measurement [Member] \| Fair Value, Inputs, Level 3 [Member] \| Trinity Life Insurance Company [Member]
Cash and cash equivalents	0	0
Total financial assets	4,853,932	5,298,828
Estimate of Fair Value Measurement [Member] \| Commercial [Member]
Mortgage loans on real estate	40,401,750	31,628,099
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Trinity Life Insurance Company [Member]
Mortgage loans on real estate	4,853,932	5,298,828
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 1 [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 1 [Member] \| Trinity Life Insurance Company [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 2 [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 2 [Member] \| Trinity Life Insurance Company [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 3 [Member]
Mortgage loans on real estate	40,401,750	31,628,099
Estimate of Fair Value Measurement [Member] \| Commercial [Member] \| Fair Value, Inputs, Level 3 [Member] \| Trinity Life Insurance Company [Member]
Mortgage loans on real estate	4,853,932	5,298,828
Estimate of Fair Value Measurement [Member] \| Residential [Member]
Mortgage loans on real estate	258,459,141	254,274,268
Estimate of Fair Value Measurement [Member] \| Residential [Member] \| Fair Value, Inputs, Level 1 [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Residential [Member] \| Fair Value, Inputs, Level 2 [Member]
Mortgage loans on real estate	0	0
Estimate of Fair Value Measurement [Member] \| Residential [Member] \| Fair Value, Inputs, Level 3 [Member]
Mortgage loans on real estate	$ 258,459,141	$ 254,274,268

Fair value disclosure of financial assets.

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Fair value disclosure of financial liabilities.

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Fair value disclosure of other long-term investments.

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Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

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Fair value portion of mortgage loans held-for-sale.

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Carrying amount of loans made to policyholders against the cash surrender value (CSV) or other policyholder funds, and secured by the CSV, policyholder funds or the death benefit provided by the insurance contracts.

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