Note 2 - Investments - Contractual Maturity of Fixed Income Securities (Details) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Due in one year or less, amortized cost	$ 1,595,530
Due in one year or less, fair value	1,584,923
Due after one year through five years, amortized cost	15,569,947
Due after one year through five years, fair value	14,762,906
Due after five years through 10 years, amortized cost	19,819,683
Due after five years through 10 years, fair value	17,066,596
Due after 10 years, amortized cost	26,662,556
Due after 10 years, fair value	21,602,374
Total fixed maturity securities, amortized cost	103,689,841	$ 102,145,223
Total fixed maturity securities, fair value	91,727,759	105,841,543
Collateralized Mortgage-Backed Securities [Member]
Securities without a specific due date, amortized cost	39,826,320
Securities without a specific due date, fair value	36,504,808
Redeemable Preferred Stock [Member]
Securities without a specific due date, amortized cost	215,805
Securities without a specific due date, fair value	206,152
Total fixed maturity securities, amortized cost	215,805	215,805
Total fixed maturity securities, fair value	$ 206,152	$ 232,885