Note 10 - Supplemental Cash Flow Information - Supplemental Cash Flow Information (Details) - CAD ($)	12 Months Ended
	May 31, 2019	May 31, 2018
Interest paid
Income taxes paid (received)
Shares issued to acquire mineral properties	59,500	847,000
Change in asset retirement obligations included in capitalized acquisition costs	36,250	40,374
Reclassification of contributed surplus on exercise of stock options	$ 3,196,919	$ 123,302