Note 6 - Leases - Schedule of Supplemental Balance Sheet Information (Details) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Operating lease right-of-use assets	$ 31,339	$ 61,040
Current portion of operating lease obligations	30,764	36,123
Operating lease obligations, net of current portion	0	25,187
Total	30,764	61,310
Property and equipment, at cost	50,037	53,885
Accumulated depreciation	(50,037)	(53,885)
Current portion of finance lease obligations	0	0
Finance lease obligations, net of current portion	0
Total finance lease liabilities	0	0
Property Plant and Equipment, Net [Member]
Property and equipment, net	$ 0	$ 0