Note 6 - Furniture and Equipment - Summary of Property and Equipment (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, plant and equipment, gross		$ 66,014	$ 68,909
Less: accumulated depreciation		52,468	50,338
Furniture and equipment, net	$ 57,320	13,546	18,571
Machinery and Equipment [Member]
Property, plant and equipment, gross		16,524	16,089
Office Furniture [Member]
Property, plant and equipment, gross		$ 49,490	$ 52,820

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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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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