Note 3 - Leases (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Lessee, Operating Lease, Term of Contract (Month)	66 months		66 months
Operating Lease, Payments	$ 900
Operating Lease, Weighted Average Discount Rate, Percent	5.50%	5.50%	5.50%	5.50%
Operating Lease, Expense	$ 26,122	$ 26,122	$ 52,244	$ 52,244