PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)	Apr. 30, 2017	Jul. 31, 2016
Property, Plant and Equipment [Line Items]
Cost	$ 12,485,374	$ 12,498,887
Accumulated Depreciation	(5,680,775)	(5,556,583)
Net Book Value	6,804,599	6,942,304
Hobson Processing Facility [Member]
Property, Plant and Equipment [Line Items]
Cost	6,819,088	6,819,088
Accumulated Depreciation	(773,933)	(773,933)
Net Book Value	6,045,155	6,045,155
Mining Equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	2,426,385	2,438,920
Accumulated Depreciation	(2,361,519)	(2,256,901)
Net Book Value	64,866	182,019
Logging Equipment and Vehicles [Member]
Property, Plant and Equipment [Line Items]
Cost	1,971,742	1,962,895
Accumulated Depreciation	(1,815,190)	(1,801,811)
Net Book Value	156,552	161,084
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	577,938	586,116
Accumulated Depreciation	(562,027)	(555,972)
Net Book Value	15,911	30,144
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost	170,701	172,348
Accumulated Depreciation	(168,106)	(167,966)
Net Book Value	2,595	4,382
Land [Member]
Property, Plant and Equipment [Line Items]
Cost	519,520	519,520
Accumulated Depreciation	0	0
Net Book Value	$ 519,520	$ 519,520