Note 10 - Income Taxes - Income Tax Reconciliation (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Computed "expected" tax benefit (expense)	$ 544,495	$ 592,264
Reduction in income taxes resulting from income taxes in other tax jurisdictions	(337,087)	(494,697)
Other	(403)	(30)
Change in taxation rates in other jurisdictions	(2,933)
Change in exchange rates	58,486	21,016
Change in valuation allowance	(173,037)	(87,792)
Income tax recovery	$ 89,521	$ 30,761