Note 4 - Investments - Sales and Maturities of Investments (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Total proceeds on sales of available-for-sale securities	$ 1,684,014	$ 14,941,172
Proceeds from redemptions of fixed maturity investments	21,650,652	3,362,080
Proceeds from maturities of fixed maturity investments	2,336,000	2,535,000
Gross gains on sales	499,859	4,346,482
Gross losses on sales	(72,926)	(1,635,142)
Net unrealized (losses) gains on equity investments	0	(4,475,616)
Total	$ 426,933	$ (1,764,276)