Note 13 - Income Taxes - Income Tax Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Before Provision for Income Taxes	$ 7,475,241	$ 9,419,490
Statutory rate	21.00%	21.00%
Tax at statutory rate	$ 1,569,801	$ 1,978,092
State taxes, net of federal benefit	336,654	551,179
Permanent differences	18,715	23,889
Return to Provision Adjustments	(289,316)	(113,533)
Total Provision for Income Taxes	$ 1,635,854	$ 2,439,627