MINERAL PROPERTIES (Details 1) - CAD	12 Months Ended
	May 31, 2016	May 31, 2015
Costs Incurred for Exploration and Evaluation Activities, Gross	CAD 3,024,448	CAD 5,640,920
Cost recovery	(168,103)
Costs Incurred for Exploration and Evaluation Activities, Net	2,856,345
West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	181	17,251
Cost recovery	(23,802)
Costs Incurred for Exploration and Evaluation Activities, Net	(23,621)
Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	20,904	119,901
Cost recovery	(39,463)
Costs Incurred for Exploration and Evaluation Activities, Net	(18,559)
North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	2,965,999	5,443,948
Cost recovery	0
Costs Incurred for Exploration and Evaluation Activities, Net	2,965,999
LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	37,364	59,820
Cost recovery	(104,838)
Costs Incurred for Exploration and Evaluation Activities, Net	(67,474)
Aircraft Services [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross		11,202
Aircraft Services [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross		0
Aircraft Services [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross		11,202
Aircraft Services [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross		0
Aircraft Services [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross		0
Assay [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	757,432	948,165
Assay [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Assay [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	12,926
Assay [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	757,432	935,239
Assay [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Drilling [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	929,841	1,577,253
Drilling [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Drilling [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Drilling [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	929,841	1,577,253
Drilling [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Equipment rental [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	51,347	234,274
Equipment rental [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Equipment rental [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	1,466
Equipment rental [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	51,347	232,808
Equipment rental [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Field Costs [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	135,371	329,157
Field Costs [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	181	2,027
Field Costs [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	247	9,218
Field Costs [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	134,382	317,575
Field Costs [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	561	337
Geological Geophysical [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	336,854	1,045,608
Geological Geophysical [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	4,201
Geological Geophysical [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	6,210	1,984
Geological Geophysical [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	328,740	1,009,824
Geological Geophysical [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	1,904	29,599
Land Maintenance Tenure [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	420,229	380,080
Land Maintenance Tenure [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	11,023
Land Maintenance Tenure [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	13,534	77,972
Land Maintenance Tenure [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	373,795	263,754
Land Maintenance Tenure [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	32,900	27,331
Permits [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	632	1,700
Permits [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Permits [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Permits [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	632	1,700
Permits [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Studies [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	322,972	920,301
Studies [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Studies [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Studies [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	322,972	920,301
Studies [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Transportation [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	1,999	1,130
Transportation [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Transportation [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Transportation [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Transportation [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	1,999	1,130
Travel [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	67,771	192,050
Travel [Member] | West Pogo [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	0	0
Travel [Member] | Chisna [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	913	5,133
Travel [Member] | North Bullfrog [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	66,858	185,494
Travel [Member] | LMS Property [Member]
Costs Incurred for Exploration and Evaluation Activities, Gross	CAD 0	CAD 1,423