Note 4 - Investments - Fixed Maturity and Securities in an Unrealized Loss Position and Aggregate Fair Value and Gross Unrealized Loss (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
12 months or greater, estimated fair value	$ 1,079,681	$ 8,751,591
12 months or greater, unrealized losses	(121,786)	(234,851)
Less than 12 months, estimated fair value	3,626,043	10,123,963
Less than 12 months, unrealized losses	(266,272)	(1,287,681)
Total estimated fair value	4,705,724	18,875,554
Total unrealized losses	(388,058)	(1,522,532)
Fixed Maturities [Member]
12 months or greater, estimated fair value	743,360	8,653,883
12 months or greater, unrealized losses	(2,473)	(193,870)
Less than 12 months, estimated fair value	2,129,891	4,440,898
Less than 12 months, unrealized losses	(7,022)	(32,499)
Total estimated fair value	2,873,251	13,094,781
Total unrealized losses	(9,495)	(226,369)
Equity Securities [Member]
12 months or greater, estimated fair value	336,321	97,708
12 months or greater, unrealized losses	(119,313)	(40,981)
Less than 12 months, estimated fair value	1,496,152	5,683,065
Less than 12 months, unrealized losses	(259,250)	(1,255,182)
Total estimated fair value	1,832,473	5,780,773
Total unrealized losses	(378,563)	(1,296,163)
Equity Securities and Hedge Funds [Member]
12 months or greater, estimated fair value		97,708
12 months or greater, unrealized losses		(40,981)
Less than 12 months, estimated fair value		5,683,065
Less than 12 months, unrealized losses		(1,255,182)
Total estimated fair value		5,780,773
Total unrealized losses		(1,296,163)
US Government Agencies Debt Securities [Member] | Fixed Maturities [Member]
12 months or greater, estimated fair value		3,389,369
12 months or greater, unrealized losses		(55,015)
Less than 12 months, estimated fair value	1,528,838	2,788,235
Less than 12 months, unrealized losses	(1,086)	(11,380)
Total estimated fair value	1,528,838	6,177,604
Total unrealized losses	(1,086)	(66,395)
US States and Political Subdivisions Debt Securities [Member] | Fixed Maturities [Member]
12 months or greater, estimated fair value		766,118
12 months or greater, unrealized losses		(13,166)
Less than 12 months, estimated fair value	601,053	139,651
Less than 12 months, unrealized losses	(5,936)	(348)
Total estimated fair value	601,053	905,769
Total unrealized losses	(5,936)	(13,514)
Corporate Debt Securities [Member] | Fixed Maturities [Member]
12 months or greater, estimated fair value	743,360	4,498,396
12 months or greater, unrealized losses	(2,473)	(125,689)
Less than 12 months, estimated fair value		1,513,012
Less than 12 months, unrealized losses		(20,771)
Total estimated fair value	743,360	6,011,408
Total unrealized losses	(2,473)	$ (146,460)
Equity Securities and Hedge Funds [Member]
12 months or greater, estimated fair value	336,321
12 months or greater, unrealized losses	(119,313)
Less than 12 months, estimated fair value	1,496,152
Less than 12 months, unrealized losses	(259,250)
Total estimated fair value	1,832,473
Total unrealized losses	$ (378,563)