ACQUISITON OF RENO CREEK PROJECT AND NORTH RENO CREEK PROJECT (Details) (Parenthetical) - Reno Creek Project [Member] - $ / shares		12 Months Ended
Aug. 09, 2017	Jul. 31, 2018
Asset Acquisition [Line Items]
Asset Acquisition Share Price		$ 1.37
Asset Acquisition, Number of Warrants Issued		14,634,748
Asset Acquisition, Warrants Price		$ 0.45
Stock Issued During Period, Shares, Acquisitions	14,392,927	11,308,728

Number of shares of stock issued during the period pursuant to acquisitions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	duration