Note 12 - Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Increase (Decrease) in Operating Lease Right of Use Asset	$ 20,200
Operating Lease, Expense		$ 14,200	$ 14,700	$ 46,300	$ 44,100
Operating Lease, Weighted Average Remaining Lease Term (Year)		7 years		7 years
Operating Lease, Weighted Average Discount Rate, Percent		11.30%		11.30%
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year		$ 14,200		$ 14,200
Lessee, Operating Lease, Liability, to be Paid, Year One		19,400		19,400
Lessee, Operating Lease, Liability, Undiscounted Excess Amount		2,300	13,000	2,300	13,000
Operating Lease, Payments		$ 12,900	$ 13,900	$ 42,300	$ 42,700
Increase (Decrease) in Operating Lease Liability	$ 20,200