Note 3 - Investments - Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Investments (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Debt securities, amortized cost	$ 40,806,347	$ 40,054,185
Gross Unrealized Gains	2,601,377	204,871
Gross Unrealized Losses	(113,329)	(2,389,278)
Investments in available-for-sale securities, at fair value	43,294,395	37,869,778
Fixed Maturities [Member]
Debt securities, amortized cost	30,823,397	28,069,450
Gross Unrealized Gains	2,353,766	173,366
Gross Unrealized Losses	(24,271)	(1,259,013)
Investments in available-for-sale securities, at fair value	33,152,892	26,983,803
Equity Securities [Member]
Debt securities, amortized cost	9,982,950	11,984,735
Gross Unrealized Gains	247,611	31,505
Gross Unrealized Losses	(89,058)	(1,130,265)
Investments in available-for-sale securities, at fair value	10,141,503	10,885,975
US Treasury Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost	608,477	597,265
Gross Unrealized Gains	24,162
Gross Unrealized Losses		(27,325)
Investments in available-for-sale securities, at fair value	632,639	569,940
Corporate Debt Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost	18,407,211	16,847,623
Gross Unrealized Gains	1,697,265	43,051
Gross Unrealized Losses	(20,079)	(1,048,313)
Investments in available-for-sale securities, at fair value	20,084,397	15,842,361
US States and Political Subdivisions Debt Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost	6,538,883	6,559,854
Gross Unrealized Gains	518,059	118,890
Gross Unrealized Losses	(1,883)	(80,631)
Investments in available-for-sale securities, at fair value	7,055,059	6,598,113
Redeemable Preferred Stock [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost	2,097,206	211,313
Gross Unrealized Gains	36,687
Gross Unrealized Losses		(18,909)
Investments in available-for-sale securities, at fair value	2,133,893	192,404
Collateralized Mortgage Backed Securities [Member] \| Fixed Maturities [Member]
Debt securities, amortized cost	3,171,620	3,853,395
Gross Unrealized Gains	77,593	11,425
Gross Unrealized Losses	(2,309)	(83,835)
Investments in available-for-sale securities, at fair value	3,246,904	3,780,985
Common Stock [Member] \| Equity Securities [Member]
Debt securities, amortized cost	9,064,262	11,808,771
Gross Unrealized Gains	239,490	31,505
Gross Unrealized Losses	(89,058)	(1,104,341)
Investments in available-for-sale securities, at fair value	9,214,694	10,735,935
Preferred Stock [Member] \| Equity Securities [Member]
Debt securities, amortized cost	918,688	175,964
Gross Unrealized Gains	8,121
Gross Unrealized Losses		(25,924)
Investments in available-for-sale securities, at fair value	$ 926,809	$ 150,040

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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Amount, before tax, of unrealized loss 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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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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