Note 2 - Investments - Contractual Maturity of Fixed Income Securities (Details) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Due in one year or less, amortized cost	$ 3,251,814
Due in one year or less, fair value	3,203,143
Due after one year through five years, amortized cost	17,273,034
Due after one year through five years, fair value	16,970,351
Due after five years through 10 years, amortized cost	25,337,861
Due after five years through 10 years, fair value	24,748,130
Due after 10 years, amortized cost	26,050,171
Due after 10 years, fair value	22,497,708
Total fixed maturity securities, amortized cost	120,448,405	$ 119,336,041
Total fixed maturity securities, fair value	114,743,833	110,955,697
Collateralized Mortgage-Backed Securities [Member]
Securities without a specific due date, amortized cost	48,349,132
Securities without a specific due date, fair value	47,141,221
Securities without a specific due date, amortized cost	48,349,132
Redeemable Preferred Stock [Member]
Securities without a specific due date, amortized cost	186,393
Securities without a specific due date, fair value	183,280
Securities without a specific due date, amortized cost	186,393
Total fixed maturity securities, amortized cost	186,393	186,393
Total fixed maturity securities, fair value	$ 183,280	$ 170,560