Note 13 - Taxes - Income Tax Provision (Benefit) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 1,907,309	$ 1,474,467
State	540,488	373,871
Current income taxes	2,447,797	1,848,338
Deferred:
Federal	(156,892)	520,163
State	(93,813)	121,754
Deferred income taxes	(250,705)	641,917
Total provision for income taxes	$ 2,197,092	$ 2,490,255