Note 5 - Property And Equipment, Net (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Property and equipment, net, gross	$ 605,000	$ 594,136
Less: accumulated depreciation and amortization	(568,463)	(554,625)
Property and equipment, net	36,537	39,511
Technology Equipment [Member]
Property and equipment, net, gross	302,213	299,443
Furniture and Fixtures [Member]
Property and equipment, net, gross	87,958	87,958
Tools, Dies and Molds [Member]
Property and equipment, net, gross	$ 214,829	$ 206,735

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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