Note 10 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income tax (benefit) at 21%	$ (67,543)	$ (610,000)
Change in valuation allowance	(2,322,000)	(2,470,000)
Permanent and other differences	2,389,543	3,080,000
Federal income tax (benefit)	(110,000)	(94,948)
State taxes	279,861	118,057
Expense for income taxes	$ 169,861	$ 23,109