Note 3 - Leases (Details Textual) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Lessee, Operating Lease, Term of Contract (Month)	42 years
Lessee, Operating Lease, Rent Escalations, Percentage	2.50%
Operating Lease, Weighted Average Discount Rate, Percent	4.50%
Operating Lease, Expense	$ 56,414	$ 26,122
Minimum [Member]
Lessee, Operating Lease, Term of Contract (Month)	37 months
Maximum [Member]
Lessee, Operating Lease, Term of Contract (Month)	67 months