Note 3 - Property and Equipment - Property and Equipment (Details) - CAD ($)	3 Months Ended		9 Months Ended
	Feb. 28, 2019	Feb. 28, 2018	Feb. 28, 2019	Feb. 28, 2018	May 31, 2018
Cost, Balance			$ 236,687
Additions			1,769
Currency translation adjustments			3,647
Cost, Balance	$ 242,103		242,103
Accumulated depreciation, Balance			180,197
Depreciation	3,787	$ 4,468	11,262	$ 13,477
Currency translation adjustments			2,857
Accumulated depreciation, Balance	194,316		194,316
Accumulated depreciation, Balance	47,787		47,787		$ 56,490
Computer Equipment [Member]
Cost, Balance			83,619
Additions			1,769
Currency translation adjustments			1,035
Cost, Balance	86,423		86,423
Accumulated depreciation, Balance			60,144
Depreciation			5,530
Currency translation adjustments			806
Accumulated depreciation, Balance	66,480		66,480
Accumulated depreciation, Balance	19,943		19,943		23,475
Vehicles [Member]
Cost, Balance			88,328
Additions
Currency translation adjustments			1,507
Cost, Balance	89,835		89,835
Accumulated depreciation, Balance			79,178
Depreciation			2,092
Currency translation adjustments			1,352
Accumulated depreciation, Balance	82,622		82,622
Accumulated depreciation, Balance	7,213		7,213		9,150
Tent [Member]
Cost, Balance			64,740
Additions
Currency translation adjustments			1,105
Cost, Balance	65,845		65,845
Accumulated depreciation, Balance			40,875
Depreciation			3,640
Currency translation adjustments			699
Accumulated depreciation, Balance	45,214		45,214
Accumulated depreciation, Balance	$ 20,631		$ 20,631		$ 23,865