Note 2 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Debt securities, amortized cost, total	$ 35,913,683	$ 35,256,039
Debt securities, fair value, total	35,382,239	37,942,657
Fixed Maturities [Member]
One year or less, amortized cost	305,632	0
One year or less, fair value	315,121	0
After one year through five years, amortized cost	1,874,111	1,987,421
After one year through five years, fair value	1,882,969	2,087,132
After five years through ten years, amortized cost	2,346,784	2,540,089
After five years through ten years, fair value	2,453,756	2,865,020
More than 10 years, amortized cost	21,587,654	21,479,533
More than 10 years, fair value	21,413,252	23,780,250
Debt securities, amortized cost, total	35,913,683	35,256,039
Debt securities, fair value, total	35,382,239	37,942,657
Fixed Maturities [Member] \| Redeemable Preferred Stock [Member]
Debt securities, amortized cost	4,052,415	3,612,625
Debt securities, fair value	3,912,946	3,621,526
Debt securities, amortized cost, total	4,052,415	3,612,625
Debt securities, fair value, total	3,912,946	3,621,526
Fixed Maturities [Member] \| Collateralized Mortgage-Backed Securities [Member]
Debt securities, amortized cost	5,747,087	5,636,371
Debt securities, fair value	5,404,195	5,588,729
Debt securities, amortized cost, total	5,747,087	5,636,371
Debt securities, fair value, total	$ 5,404,195	$ 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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