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Note 8 - Income Taxes - Reconciliation of Income Tax Expense (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Computed tax at expected statutory rate	$ (2,157,436)	$ (54,104)
State and local income taxes, net of federal benefit	(76,055)	(2,971)
Non-US income taxed at different rates	(35,454)	14,635
Deferred compensation	(52,165)	(6,508)
Non-deductible expenses	2,243	4,794
Non-taxable income	(75,562)	0
Valuation allowance	1,918,579	(227,182)
Other	10,705	(25,916)
Total tax expense (benefit)	$ (465,145)	$ (297,252)

X

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deferred compensation.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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