Note 8 - Geographic Segmented Information - Net Income (Loss) by Geographic Areas (Details) - CAD ($)	12 Months Ended
	May 31, 2019	May 31, 2018
Net loss for the year	$ (10,858,005)	$ (9,298,163)
CANADA
Net loss for the year	(3,770,719)	(2,552,140)
UNITED STATES
Net loss for the year	$ (7,087,286)	$ (6,746,023)