Note 11 - Income Taxes - Components of Income Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Current provision:
Federal
State	118,057	101,888
Current Income Tax Expense (Benefit), Total	118,057	101,888
Deferred provision:
Federal expense
Expense for income taxes	$ 118,057	$ 101,888