Note 2 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
One year or less, amortized cost	$ 408,288	$ 0
One year or less, fair value	413,641	0
After one year through five years, amortized cost	1,767,797	1,987,421
After one year through five years, fair value	1,730,772	2,087,132
After five years through ten years, amortized cost	2,434,768	2,540,089
After five years through ten years, fair value	2,401,025	2,865,020
More than 10 years, amortized cost	21,167,776	21,479,533
More than 10 years, fair value	18,605,766	23,780,250
Available for sale securities, amortized cost	35,888,401	35,256,039
Available for sale fixed maturity securities (amortized cost: $35,888,401 and $35,256,039 as of June 30, 2022 and December 31, 2021, respectively)	32,198,208	37,942,657
Redeemable Preferred Stock [Member]
Debt securities, amortized cost	4,044,005	3,612,625
Debt securities, fair value	3,548,532	3,621,526
Available for sale securities, amortized cost	4,044,005	3,612,625
Available for sale fixed maturity securities (amortized cost: $35,888,401 and $35,256,039 as of June 30, 2022 and December 31, 2021, respectively)	3,548,532	3,621,526
Collateralized Mortgage-Backed Securities [Member]
Debt securities, amortized cost	6,065,767	5,636,371
Debt securities, fair value	5,498,472	5,588,729
Available for sale securities, amortized cost	6,065,767	5,636,371
Available for sale fixed maturity securities (amortized cost: $35,888,401 and $35,256,039 as of June 30, 2022 and December 31, 2021, respectively)	$ 5,498,472	$ 5,588,729

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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