MINERAL PROPERTIES (Details) - CAD		1 Months Ended	12 Months Ended
	Apr. 08, 2015	Nov. 18, 2015	May 31, 2016	May 31, 2015
Beginning Balance			CAD 4,866,634	CAD 4,045,115
Cash payments (note 6d)(ii)(1)			32,594	32,508
Shares issued (note 6d)(ii)(1)	CAD 64,600	CAD 11,250	11,250	64,600
Asset retirement obligations			153,825	132,579
Currency translation adjustments			276,635	591,832
Reclassified to asset held-for-sale			(401,563)
Write-off of capitalized acquisition costs			677,695	0
Ending Balance			4,261,680	4,866,634
Chisna [Member]
Beginning Balance			631,205	550,255
Cash payments (note 6d)(ii)(1)			0	0
Shares issued (note 6d)(ii)(1)			0	0
Asset retirement obligations			0	0
Currency translation adjustments			46,490	80,950
Reclassified to asset held-for-sale			0
Write-off of capitalized acquisition costs			(677,695)
Ending Balance			0	631,205
North Bullfrog [Member]
Beginning Balance			3,861,412	3,168,810
Cash payments (note 6d)(ii)(1)			32,594	32,508
Shares issued (note 6d)(ii)(1)			11,250	64,600
Asset retirement obligations			153,825	132,579
Currency translation adjustments			202,599	462,915
Reclassified to asset held-for-sale			0
Write-off of capitalized acquisition costs			0
Ending Balance			4,261,680	3,861,412
LMS Property [Member]
Beginning Balance			374,017	326,050
Cash payments (note 6d)(ii)(1)			0	0
Shares issued (note 6d)(ii)(1)			0	0
Asset retirement obligations			0	0
Currency translation adjustments			27,546	47,967
Reclassified to asset held-for-sale			(401,563)
Ending Balance			CAD 0	CAD 374,017