Note 6 - Furniture and Equipment - Summary of Property and Equipment (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Property, plant and equipment, gross	$ 68,909	$ 65,950
Less: accumulated depreciation	50,338	40,214
Furniture and equipment, net	18,571	25,736
Machinery and Equipment [Member]
Property, plant and equipment, gross	16,089	14,764
Office Furniture [Member]
Property, plant and equipment, gross	$ 52,820	$ 51,186

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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