Note 1 - Summary of Significant Accounting Policies - Reclassifications from Accumulated Other Comprehensive Earnings (Details) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Net realized investment gains	$ 3,020		$ (144,012)		$ (147,666)	$ (68,447)
Income Tax Expense (Benefit)	(177,644)		156,494		418,557	562,014
Net earnings	$ (731,876)	$ 2,239,205	$ 586,489	$ 1,578,545	1,507,329	2,165,034
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net earnings					17,048	40,999
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Net realized investment gains					21,580	51,897
Income Tax Expense (Benefit)					$ (4,532)	$ (10,898)