Note 2 - Property, Equipment and Software, Net - Property, Plant and Equipment (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Property, plant and equipment, gross	$ 107,549	$ 105,911
Less: accumulated depreciation	(102,480)	(91,901)
Property, equipment and software, net	5,069	14,010
Furniture and Fixtures [Member]
Property, plant and equipment, gross	94,625	92,988
Automobiles [Member]
Property, plant and equipment, gross	4,912	4,911
Software and Software Development Costs [Member]
Property, plant and equipment, gross	$ 8,012	$ 8,012

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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