Note 7 - Geographic Segmented Information - Long-lived Assets, by Geographical Areas (Details) - CAD ($)	Feb. 28, 2019	May 31, 2018
Capitalized acquisition costs	$ 5,436,745	$ 5,238,789
Property and equipment	47,787	56,490
Operating Segments [Member]
Capitalized acquisition costs	5,436,745	5,238,789
Property and equipment	47,787	56,490
CANADA | Operating Segments [Member]
Capitalized acquisition costs	0	0
Property and equipment	8,680	11,200
UNITED STATES | Operating Segments [Member]
Capitalized acquisition costs	5,436,745	5,238,789
Property and equipment	$ 39,107	$ 45,290