Note 12 - Income Taxes - Components of Income Tax Expense Benefit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 13,154,619	$ 19,211,782	$ 5,111,667
State and local	897,285	513,753	447,965
Foreign, current	3,800	13,994	0
Total current provision	14,055,704	19,739,529	5,559,632
Federal	(3,818,283)	89,947	11,375,962
State and local	(9,495)	31,499	230,987
Foreign, deferred	0	0	0
Total deferred (benefit) provision	(3,827,778)	121,446	11,606,949
Total provision	$ 10,227,926	$ 19,860,975	$ 17,166,581