PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)	Apr. 30, 2018	Jul. 31, 2017
Property, Plant and Equipment [Line Items]
Cost	$ 12,896,096	$ 12,502,712
Accumulated Depreciation	(5,775,860)	(5,711,530)
Net Book Value	7,120,236	6,791,182
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	2,438,681	2,438,681
Accumulated Depreciation	(2,406,874)	(2,378,737)
Net Book Value	31,807	59,944
Logging Equipment and Vehicles [Member]
Property, Plant and Equipment [Line Items]
Cost	1,971,742	1,971,742
Accumulated Depreciation	(1,844,124)	(1,825,389)
Net Book Value	127,618	146,353
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Cost	606,279	582,980
Accumulated Depreciation	(573,281)	(565,223)
Net Book Value	32,998	17,757
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Cost	170,701	170,701
Accumulated Depreciation	(168,673)	(168,248)
Net Book Value	2,028	2,453
Land and Buildings [Member]
Property, Plant and Equipment [Line Items]
Cost	889,605	519,520
Accumulated Depreciation	(8,975)	0
Net Book Value	$ 880,630	$ 519,520