Note 2 - Investments - Contractual Maturity of Fixed Income Securities (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Due in one year or less, amortized cost	$ 250,007
Due in one year or less, fair value	246,576
Due after one year through five years, amortized cost	16,293,720
Due after one year through five years, fair value	15,551,096
Due after five years through 10 years, amortized cost	19,109,519
Due after five years through 10 years, fair value	16,765,406
Due after 10 years, amortized cost	26,853,034
Due after 10 years, fair value	21,833,630
Total fixed maturity securities, amortized cost	104,580,681	$ 102,145,223
Total fixed maturity securities, fair value	93,388,971	105,841,543
Collateralized Mortgage-Backed Securities [Member]
Securities without a specific due date, amortized cost	41,858,596
Securities without a specific due date, fair value	38,803,342
Redeemable Preferred Stock [Member]
Securities without a specific due date, amortized cost	215,805
Securities without a specific due date, fair value	188,921
Total fixed maturity securities, amortized cost	215,805	215,805
Total fixed maturity securities, fair value	$ 188,921	$ 232,885