Note 8 - Geographic Segmented Information - Long-lived Assets, by Geographical Areas (Details) - CAD ($)	May 31, 2019	May 31, 2018	May 31, 2017
Capitalized acquisition costs	$ 5,619,005	$ 5,238,789	$ 4,527,740
Property and equipment	45,016	56,490
Operating Segments [Member]
Capitalized acquisition costs	5,619,005	5,238,789
Property and equipment	45,016	56,490
CANADA | Operating Segments [Member]
Capitalized acquisition costs	0	0
Property and equipment	7,840	11,200
UNITED STATES | Operating Segments [Member]
Capitalized acquisition costs	5,619,005	5,238,789
Property and equipment	$ 37,176	$ 45,290