Note 2 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
One year or less, amortized cost	$ 2,329,128	$ 152,840
One year or less, fair value	2,329,128	147,835
After one year through five years, amortized cost	18,590,098	16,397,124
After one year through five years, fair value	18,590,098	16,461,777
After five years through ten years, amortized cost	2,032,061	6,371,607
After five years through ten years, fair value	1,967,540	6,112,389
More than 10 years, amortized cost	20,606,740	21,488,624
More than 10 years, fair value	17,025,901	18,504,542
Debt securities, amortized cost, total	83,785,307	78,653,792
Available for sale fixed maturity securities (amortized cost: $83,785,307 and $78,653,792, net of allowances for credit losses of $0 and $0, as of December 31, 2024 and December 31, 2023, respectively)	79,578,179	74,509,520
Redeemable Preferred Stock [Member]
Debt securities, amortized cost	2,562,893	3,622,572
Debt securities, fair value	2,411,234	3,305,569
Debt securities, amortized cost, total	2,562,893	3,622,572
Available for sale fixed maturity securities (amortized cost: $83,785,307 and $78,653,792, net of allowances for credit losses of $0 and $0, as of December 31, 2024 and December 31, 2023, respectively)	2,411,234	3,305,569
Collateralized Mortgage-Backed Securities [Member]
Debt securities, amortized cost	37,664,287	30,621,025
Debt securities, fair value	37,434,295	29,977,408
Debt securities, amortized cost, total	37,664,287	30,621,025
Available for sale fixed maturity securities (amortized cost: $83,785,307 and $78,653,792, net of allowances for credit losses of $0 and $0, as of December 31, 2024 and December 31, 2023, respectively)	$ 37,434,295	$ 29,977,408