Note 3 - Investments - Amortized Cost and Fair Value of Debt Securities By Contractual Maturity (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Debt securities, amortized cost	$ 40,806,347	$ 40,054,185
Debt securities, fair value	43,294,395	37,869,778
Fixed Maturities [Member]
One year or less, amortized cost	99,987
One year or less, fair value	100,239
After one year through five years, amortized cost	1,424,337	1,472,228
After one year through five years, fair value	1,471,552	1,462,745
After five years through ten years, amortized cost	3,286,937	2,101,676
After five years through ten years, fair value	3,574,191	2,055,173
More than 10 years, amortized cost	20,743,310	20,430,838
More than 10 years, fair value	22,626,113	19,492,496
Debt securities, amortized cost	30,823,397	28,069,450
Debt securities, fair value	33,152,892	26,983,803
Fixed Maturities [Member] \| Redeemable Preferred Stock [Member]
Debt securities, amortized cost	2,097,206	211,313
Debt securities, fair value	2,133,893	192,404
Debt securities, amortized cost	2,097,206	211,313
Debt securities, fair value	2,133,893	192,404
Fixed Maturities [Member] \| Collateralized Mortgage Backed Securities [Member]
Debt securities, amortized cost	3,171,620	3,853,395
Debt securities, fair value	3,246,904	3,780,985
Debt securities, amortized cost	3,171,620	3,853,395
Debt securities, fair value	$ 3,246,904	$ 3,780,985

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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