Note 2 - Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Loss for the year	$ (2,592,831)	$ (1,741,951)
Basic and diluted weighted average number of common shares outstanding (in shares)	72,111,456	61,730,928
Basic and diluted loss per common share outstanding (in dollars per share)	$ (0.04)	$ (0.03)