MINERAL RIGHTS AND PROPERTIES (Details Textual)	12 Months Ended
	Jul. 31, 2016 USD ($) a	Jun. 30, 2016	Jul. 31, 2015 USD ($)	Jul. 31, 2014 USD ($)
Exploration Abandonment and Impairment Expense	$ 97,114		$ 349,805
Impairment of Long-Lived Assets Held-for-use	97,114		349,805	$ 653,224
Revaluation of Asset Retirement Obligations	308,398		0	0
Mineral Properties, Gross	41,728,434		41,969,655
Mineral Properties, Accumulated Depletion	3,929,884		3,929,884
Palangana Mine [Member]
Asset Retirement Obligation, Revision of Estimate	144,107
Revaluation of Asset Retirement Obligations	$ 308,398
Area of Land | a	6,987
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 6,443,028		6,587,135
Mineral Properties, Accumulated Depletion	3,929,884		3,929,884
Mineral Rights Net Of Accumulated Depletion	2,513,144		2,657,251
Mining Properties and Mineral Rights [Member]
Payment to Maintain Mineral Properties in Good Standing	$ 1,528,000
Channen Project [Member]
Exploration Abandonment and Impairment Expense				428,164
Todilto Project [Member]
Exploration Abandonment and Impairment Expense				166,720
Other project [Member]
Exploration Abandonment and Impairment Expense				$ 58,340
Goliad Project [Member]
Area of Land | a	1,139
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 8,689,127		8,689,127
Burke Hollow Project [Member]
Area of Land | a	19,335
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 1,495,750		1,495,750
Longhorn Project [Member]
Area of Land | a	651
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 116,870		116,870
Salvo Project [Member]
Exploration Abandonment and Impairment Expense			349,805
Area of Land | a	1,847
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 14,905		14,905
Nichols Project [Member]
Area of Land | a	909
Lessor Leasing Arrangements, Operating Leases, Term of Contract	5 years
Mineral Properties, Gross	$ 154,774		154,774
Anderson Project [Member]
Area of Land | a	8,268
Mineral Properties, Gross	$ 9,154,268		9,154,268
Interest on Property		100.00%
Workman Creek Project [Member]
Area of Land | a	4,036
Mineral Properties, Gross	$ 1,472,008		1,472,008
Lease Terms, Description	The Workman Creek Project is subject to a 3.0% net smelter royalty requiring an annual advance royalty payment of $50,000 for 2016 and 2017, and $100,000 thereafter. The Company has an exclusive right and option to acquire one-half (1.5%) of the net smelter royalty for $1,000,000 at any time until January 21, 2024. Additionally, certain individuals hold an option to acquire a 0.5% net smelter royalty exercisable by paying the Company the sum of $333,340 at any time until January 21, 2024.
Operating Leases, Annual Advance Royalty, Payment In Year Two	$ 50,000
Interest on Property	100.00%
Los Cuatros Project [Member]
Area of Land | a	640
Mineral Properties, Gross	$ 257,250		257,250
Interest on Property		100.00%
Slick Rock Project [Member]
Exploration Abandonment and Impairment Expense	45,621
Impairment of Long-Lived Assets Held-for-use	$ 45,621
Area of Land | a	5,333
Mineral Properties, Gross	$ 615,650		661,271
Lease Terms, Description	Certain claims of the Slick Rock Project are subject to a 1.0% or 3.0% net smelter royalty, the latter requiring an annual advance royalty payment of $30,000 beginning in November 2017.
Interest on Property		100.00%
Yuty Project [Member]
Area of Land | a	289,680
Mineral Properties, Gross	$ 11,947,144		11,947,144
Overriding Royalty, per pound	0.21
Interest on Property		100.00%
Coronel Oviedo Project [Member]
Area of Land | a	464,548
Mineral Properties, Gross	$ 1,133,412		$ 1,133,412
Lease Terms, Description	The Coronel Oviedo Project is subject to a 1.5% gross overriding royalty over which the Company has an exclusive right and option at any time to acquire one-half percent (0.5%) for $166,667 and a right of first refusal to acquire all or any portion of the remaining one percent (1.0%). At July 31, 2016,
Interest on Property		100.00%