SUPPLEMENTAL CASH FLOW INFORMATION (Details Textual) - USD ($)		12 Months Ended
	Aug. 09, 2017	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 349,834	$ 1,107,937	$ 1,372,381
Stock Issued During Period, Value, Share-based Compensation, Gross		1,622,222	1,622,222	1,626,667
Stock Issued During Period, Value, New Issues			19,421,351	8,365,037
Share Issuance Obligation,Amount		0	$ 638,142
Shares Issued During Period Shares For Asset Acquisition Transaction Cost	217,702
Shares Issued During Period Value For Asset Acquisition Transaction Cost	$ 283,013
Cash consideration for asset acquisition	$ 909,930	2,940,000		50,000
Reimbursable Expenses		$ 483,829
Stock Issued During Period, Value, Acquisitions				$ 1,226,875
Second Amended Credit Agreement [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		641,574	738,503
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 900,000	$ 1,100,000
Common Stock [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		225,168	865,386	1,429,650
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 225	$ 862	$ 1,429
Stock Issued During Period, Shares, Share-based Compensation, Gross		1,265,446	846,069	826,782
Stock Issued During Period, Value, Share-based Compensation, Gross		$ 1,839,193	$ 967,369	$ 726,244
Stock Issued During Period, Shares, New Issues			17,330,836	12,364,704
Stock Issued During Period, Value, New Issues			$ 17,331	$ 12,365
Stock Issued During Period, Shares, Acquisitions				1,333,560
Stock Issued During Period, Shares, Restricted Stock Award, Gross		353,160
Stock Issued During Period, Value, Acquisitions				$ 1,334
Surety Bond [Member]
Stock Issued During Period, Value, Share-based Compensation, Gross		$ 118,944	$ 117,069	$ 114,145
Workman Creek Project [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		46,134	46,800
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 61,820	$ 48,672
2017 Plan [Member]
Stock Issued During Period, Shares, New Issues		398,839
Stock Issued During Period, Value, New Issues		$ 510,528
Share Issuance Obligation,Amount		$ 638,142
Reno Creek Project [Member]
Stock Issued During Period, Shares, Acquisitions	14,392,927	11,308,728
Stock Issued During Period, Shares, Restricted Stock Award, Gross		353,160
Shares Issued During Period Shares For Asset Acquisition Transaction Cost		217,702
Shares Issued During Period Value For Asset Acquisition Transaction Cost		$ 283,013
Cash consideration for asset acquisition		909,930
Reimbursable Expenses		$ 483,829
Stock Issued During Period, Value, Acquisitions	$ 20,049,605
Reno Creek Project [Member] | Common Stock [Member]
Stock Issued During Period, Shares, Acquisitions		14,634,748
Diabase Project [Member]
Stock Issued During Period, Shares, Acquisitions		164,767
Cash consideration for asset acquisition		$ 239,120
Stock Issued During Period, Value, Acquisitions		$ 232,321
North Reno Creek Project [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross		65,684
Shares Issued During Period Value For Asset Acquisition Transaction Cost		$ 105,751
Stock Issued During Period, Value, Acquisitions		$ 2,617,105
North Reno Creek Project [Member] | Common Stock [Member]
Stock Issued During Period, Shares, Acquisitions		1,625,531
CIC Resources Inc [Member]
Stock Issued During Period, Shares, Acquisitions			664,879
Stock Issued During Period, Value, Acquisitions			$ 1,070,455
Settlement of Current Liabilities [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures		565,499	351,061	487,574
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 845,824	$ 454,195	$ 453,444