Note 2 - Investments - Sales and Maturities of Investments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Total proceeds on sales of available-for-sale securities	$ 1,684,014		$ 1,684,014	$ 14,941,147
Proceeds from redemptions of fixed maturity investments	21,047,547	$ (17,931)	21,650,652	3,082,081
Proceeds from maturities of fixed maturity investments	0	500,000	2,336,000	1,705,000
Gross gains on sales	499,859	3,516,795	499,859	4,346,483
Gross losses on sales	(72,926)	(1,250,195)	(72,926)	(1,635,113)
Net unrealized (losses) gains on equity investments	(82,081)	(1,278,038)	0	(4,475,670)
Total	$ 344,852	$ 988,562	$ 426,933	$ (1,764,300)