Note 3 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Debt securities, amortized cost, total	$ 35,256,039	$ 33,784,518
Debt securities, fair value, total	37,942,657	37,677,578
Fixed Maturities [Member]
One year or less, amortized cost	0	373,590
One year or less, fair value	0	379,823
After one year through five years, amortized cost	1,987,421	1,540,931
After one year through five years, fair value	2,087,132	1,641,749
After five years through ten years, amortized cost	2,540,089	2,887,066
After five years through ten years, fair value	2,865,020	3,379,930
More than 10 years, amortized cost	21,479,533	21,892,891
More than 10 years, fair value	23,780,250	25,045,879
Debt securities, amortized cost, total	35,256,039	33,784,518
Debt securities, fair value, total	37,942,657	37,677,578
Fixed Maturities [Member] \| Redeemable Preferred Stock [Member]
Debt securities, amortized cost	3,612,625	2,900,330
Debt securities, fair value	3,621,526	2,990,215
Debt securities, amortized cost, total	3,612,625	2,900,330
Debt securities, fair value, total	3,621,526	2,990,215
Fixed Maturities [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities, amortized cost	5,636,371	4,189,710
Debt securities, fair value	5,588,729	4,239,982
Debt securities, amortized cost, total	5,636,371	4,189,710
Debt securities, fair value, total	$ 5,588,729	$ 4,239,982

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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