Note 2 - Investments - Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Investments (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Debt securities, amortized cost, total	$ 35,106,990	$ 33,784,518
Debt Securities, Gross Unrealized Gains	3,031,591
Debt Securities, Gross Unrealized Losses	(246,985)	(1,231)
Investments in available-for-sale securities, at fair value	37,891,596	37,677,578
Debt Securities, Gross Unrealized Gain		3,894,291
Fixed Maturities [Member]
Debt securities, amortized cost, total	35,106,990	33,784,518
Investments in available-for-sale securities, at fair value	37,891,596	37,677,578
US Treasury Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost, total	577,795	574,935
Debt Securities, Gross Unrealized Gains	124,964
Debt Securities, Gross Unrealized Losses	0	0
Investments in available-for-sale securities, at fair value	702,759	702,916
Debt Securities, Gross Unrealized Gain		127,981
Corporate Debt Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost, total	19,569,139	20,126,836
Debt Securities, Gross Unrealized Gains	2,145,250
Debt Securities, Gross Unrealized Losses	(194,441)	(533)
Investments in available-for-sale securities, at fair value	21,519,948	22,947,811
Debt Securities, Gross Unrealized Gain		2,821,508
US States and Political Subdivisions Debt Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost, total	6,311,889	5,992,707
Debt Securities, Gross Unrealized Gains	669,965
Debt Securities, Gross Unrealized Losses	(15,738)	(496)
Investments in available-for-sale securities, at fair value	6,966,116	6,796,654
Debt Securities, Gross Unrealized Gain		804,443
Redeemable Preferred Stock [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost, total	3,071,658	2,900,330
Debt Securities, Gross Unrealized Gains	54,358
Debt Securities, Gross Unrealized Losses	(1,377)	(200)
Investments in available-for-sale securities, at fair value	3,124,639	2,990,215
Debt Securities, Gross Unrealized Gain		90,085
Collateralized Mortgage Backed Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost, total	5,576,509	4,189,710
Debt Securities, Gross Unrealized Gains	37,054
Debt Securities, Gross Unrealized Losses	(35,429)	(2)
Investments in available-for-sale securities, at fair value	$ 5,578,134	4,239,982
Debt Securities, Gross Unrealized Gain		$ 50,274

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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