Note 1 - Summary of Significant Accounting Policies - Reclassifications from Accumulated Other Comprehensive Earnings (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net realized investment gains	$ (199,928)	$ (41,206)	$ (268,375)	$ (785,600)
Income Tax Expense (Benefit)	(198,850)	181,114	363,164	(980,726)
Net earnings (loss)	(768,962)	629,740	1,396,071	(3,659,167)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net earnings (loss)	5,422	0	46,421	496
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Net realized investment gains	6,863	0	58,761	628
Income Tax Expense (Benefit)	$ (1,441)	$ 0	$ (12,340)	$ (132)