Note 2 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
One year or less, amortized cost	$ 0	$ 152,840
One year or less, fair value	0	147,835
After one year through five years, amortized cost	15,589,592	16,397,124
After one year through five years, fair value	15,632,945	16,461,777
After five years through ten years, amortized cost	6,227,335	6,371,609
After five years through ten years, fair value	5,940,946	6,112,389
More than 10 years, amortized cost	21,530,742	21,488,624
More than 10 years, fair value	18,239,096	18,504,542
Available for sale securities, amortized cost	78,977,046	78,653,792
Available for sale fixed maturity securities (amortized cost: $78,977,046 and $78,653,792 as of March 31, 2024 and December 31, 2023, respectively)	74,910,043	74,509,520
Redeemable Preferred Stock [Member]
Debt securities, amortized cost	3,620,009	3,622,572
Debt securities, fair value	3,424,071	3,305,569
Available for sale securities, amortized cost	3,620,009	3,622,572
Available for sale fixed maturity securities (amortized cost: $78,977,046 and $78,653,792 as of March 31, 2024 and December 31, 2023, respectively)	3,424,071	3,305,569
Collateralized Mortgage-Backed Securities [Member]
Debt securities, amortized cost	32,009,368	30,621,025
Debt securities, fair value	31,672,985	29,977,408
Available for sale securities, amortized cost	32,009,368	30,621,025
Available for sale fixed maturity securities (amortized cost: $78,977,046 and $78,653,792 as of March 31, 2024 and December 31, 2023, respectively)	$ 31,672,985	$ 29,977,408

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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