Note 3 - Investments - Gross Unrealized Losses (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Available-for-sale securities, less than 12 months, fair value	$ 1,083,283	$ 18,056,770
Available-for-sale securities, less than 12 months, unrealized loss	(28,882)	(1,270,655)
Available-for-sale securities, greater than 12 months, fair value	3,471,423	11,578,599
Available-for-sale securities, greater than 12 months, unrealized loss	(84,447)	(1,118,623)
Available-for-sale securities, fair value	4,554,706	29,635,369
Available-for-sale securities, unrealized loss	(113,329)	(2,389,278)
Fixed Maturities [Member]
Available-for-sale securities, less than 12 months, fair value	1,014,494	14,744,242
Available-for-sale securities, less than 12 months, unrealized loss	(21,962)	(1,042,507)
Available-for-sale securities, greater than 12 months, fair value	296,576	4,239,659
Available-for-sale securities, greater than 12 months, unrealized loss	(2,309)	(216,506)
Available-for-sale securities, fair value	1,311,070	18,983,901
Available-for-sale securities, unrealized loss	(24,271)	(1,259,013)
Fixed Maturities [Member] \| Corporate Debt Securities [Member]
Available-for-sale securities, less than 12 months, fair value	967,848	11,743,222
Available-for-sale securities, less than 12 months, unrealized loss	(20,079)	(948,539)
Available-for-sale securities, greater than 12 months, fair value		830,239
Available-for-sale securities, greater than 12 months, unrealized loss		(99,774)
Available-for-sale securities, fair value	967,848	12,573,461
Available-for-sale securities, unrealized loss	(20,079)	(1,048,313)
Fixed Maturities [Member] \| US Treasury Securities [Member]
Available-for-sale securities, less than 12 months, fair value		251,206
Available-for-sale securities, less than 12 months, unrealized loss		(27,325)
Available-for-sale securities, greater than 12 months, fair value
Available-for-sale securities, greater than 12 months, unrealized loss
Available-for-sale securities, fair value		251,206
Available-for-sale securities, unrealized loss		(27,325)
Fixed Maturities [Member] \| US States and Political Subdivisions Debt Securities [Member]
Available-for-sale securities, less than 12 months, fair value	46,646	2,114,260
Available-for-sale securities, less than 12 months, unrealized loss	(1,883)	(51,267)
Available-for-sale securities, greater than 12 months, fair value		859,305
Available-for-sale securities, greater than 12 months, unrealized loss		(29,364)
Available-for-sale securities, fair value	46,646	2,973,565
Available-for-sale securities, unrealized loss	(1,883)	(80,631)
Fixed Maturities [Member] \| Collateralized Mortgage Backed Securities [Member]
Available-for-sale securities, less than 12 months, fair value		544,714
Available-for-sale securities, less than 12 months, unrealized loss		(6,656)
Available-for-sale securities, greater than 12 months, fair value	296,576	2,448,551
Available-for-sale securities, greater than 12 months, unrealized loss	(2,309)	(77,179)
Available-for-sale securities, fair value	296,576	2,993,265
Available-for-sale securities, unrealized loss	(2,309)	(83,835)
Fixed Maturities [Member] \| Redeemable Preferred Stock [Member]
Available-for-sale securities, less than 12 months, fair value		90,840
Available-for-sale securities, less than 12 months, unrealized loss		(8,720)
Available-for-sale securities, greater than 12 months, fair value		101,564
Available-for-sale securities, greater than 12 months, unrealized loss		(10,189)
Available-for-sale securities, fair value		192,404
Available-for-sale securities, unrealized loss		(18,909)
Equity Securities [Member]
Available-for-sale securities, less than 12 months, fair value	68,789	3,312,528
Available-for-sale securities, less than 12 months, unrealized loss	(6,920)	(228,148)
Available-for-sale securities, greater than 12 months, fair value	3,174,847	7,338,940
Available-for-sale securities, greater than 12 months, unrealized loss	(82,138)	(902,117)
Available-for-sale securities, fair value	3,243,636	10,651,468
Available-for-sale securities, unrealized loss	(89,058)	(1,130,265)
Equity Securities [Member] \| Common Stock [Member]
Available-for-sale securities, less than 12 months, fair value	68,789	3,312,528
Available-for-sale securities, less than 12 months, unrealized loss	(6,920)	(228,148)
Available-for-sale securities, greater than 12 months, fair value	3,174,847	7,188,900
Available-for-sale securities, greater than 12 months, unrealized loss	(82,138)	(876,193)
Available-for-sale securities, fair value	3,243,636	10,501,428
Available-for-sale securities, unrealized loss	$ (89,058)	(1,104,341)
Equity Securities [Member] \| Preferred Stock [Member]
Available-for-sale securities, less than 12 months, fair value
Available-for-sale securities, less than 12 months, unrealized loss
Available-for-sale securities, greater than 12 months, fair value		150,040
Available-for-sale securities, greater than 12 months, unrealized loss		(25,924)
Available-for-sale securities, fair value		150,040
Available-for-sale securities, unrealized loss		$ (25,924)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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