MINERAL RIGHTS AND PROPERTIES (Details Textual)		12 Months Ended
	Jul. 07, 2017 USD ($) a shares	Jul. 31, 2018 USD ($) a shares	Jul. 31, 2017 USD ($) shares	Jul. 31, 2016 USD ($)	Mar. 04, 2016
Exploration Abandonment and Impairment Expense		$ 0	$ 297,942	$ 97,114
Stock Issued During Period, Value, Acquisitions				1,226,875
Extinguishment of Debt, Gain (Loss), Net of Tax	$ (49,002)	0	(49,002)	(46,968)
Revaluation of asset retirement obligations		0	187,255	308,398
Mineral Properties, Gross		74,997,692	42,755,064
Mineral Properties, Accumulated Depletion		3,929,884	$ 3,929,884
Alto Parana Project [Member]
Area of Land | a	174,200
Stock Issued During Period, Shares, Acquisitions | shares	664,879
Stock Issued During Period, Value, Acquisitions	$ 1,070,455
Asset Acquisition Amount Payable Upon Exercise Options	$ 1,021,453
Asset Acquisition Ownership Percentage	100.00%
Alto Parana Project [Member] | Maximum [Member]
Asset Acquisition Amount Payable Upon Exercise Options	$ 275,000
Mining Properties and Mineral Rights [Member]
Annual Property Maintenance Fees		$ 2,011,000
Workman Creek Project [Member]
Area of Land | a		4,036
Stock Issued During Period Shares For Mineral Properties | shares		46,134	46,800
Stock Issued During Period Value For Mineral Properties		$ 61,820	$ 48,672
Interest On Property Plant And Equipment		100.00%
Mineral Properties, Gross		$ 1,657,500	1,520,680
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. We have 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.
Payments for Advance Royalties		$ 75,000
Diabase Project [Member]
Area of Land | a		54,236
Stock Issued During Period, Shares, Acquisitions | shares		164,767
Assets Acquisition Percentage Of Voting Interests Acquired		100.00%
Asset Acquisition, Consideration Transferred		$ 546,938
Cash Consideration Paid In Asset Acquisition		239,120
Asset Acquisition, Transaction Costs		$ 75,497
Percentage of Royalty Interests Acquired by URC		100.00%
Asset Acquisition, URC To Acquire Royalty Option		$ 125,000
Stock Issued During Period, Value, Acquisitions		232,321
Mineral Properties, Gross		546,938	0
Diabase Project [Member] | After Closing Date [Member]
Asset Acquisition, URC To Acquire Royalty Option		$ 1,750,000
Alto Parana Titanium Project Paraguay [Member]
Equity Method Investment, Ownership Percentage					100.00%
Property Maintenance Costs	$ 746,453
Royalty Agreement Percentage Of Net Smelter Return		1.50%
Percentage Of Royalty Interest Acquired		0.50%
Payments to Acquire Royalty Interests in Mining Properties		$ 500,000
Palangana Mine [Member]
Area of Land | a		6,987
Revaluation of asset retirement obligations			187,255	$ 308,398
Mineral Properties, Gross		$ 6,285,898	6,285,898
Mineral Properties, Accumulated Depletion		3,929,884	3,929,884
Mineral Rights Net Of Accumulated Depletion		$ 2,356,014	2,356,014
Goliad Project [Member]
Area of Land | a		1,139
Mineral Properties, Gross		$ 8,689,127	8,689,127
Burke Hollow Project [Member]
Area of Land | a		19,335
Mineral Properties, Gross		$ 1,495,750	1,495,750
Longhorn Project [Member]
Area of Land | a		651
Mineral Properties, Gross		$ 116,870	116,870
Salvo Project [Member]
Area of Land | a		1,514
Mineral Properties, Gross		$ 14,905	14,905
Anderson Project [Member]
Area of Land | a		8,268
Interest On Property Plant And Equipment		100.00%
Mineral Properties, Gross		$ 9,154,268	9,154,268
Los Cuatros Project [Member]
Area of Land | a		640
Interest On Property Plant And Equipment		100.00%
Mineral Properties, Gross		$ 257,250	257,250
Slick Rock Project [Member]
Area of Land | a		5,333
Interest On Property Plant And Equipment		100.00%
Mineral Properties, Gross		$ 646,650	615,650
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 beginning in November 2017.
Payments for Advance Royalties		$ 31,000
Oviedo Project [Member]
Area of Land | a		464,548
Mineral Properties, Gross		$ 1,133,412	1,133,412
Lease terms Description		The Oviedo Project is subject to a 1.5% gross overriding royalty over which we have 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, 2018,
Yuty Project [Member]
Area of Land | a		289,680
Mineral Properties, Gross		$ 11,947,144	$ 11,947,144
Overriding Royalty Per Pound		0.21