CAPITAL STOCK (Details) - USD ($)	3 Months Ended						9 Months Ended
	Apr. 30, 2018		Jan. 31, 2018		Oct. 31, 2017		Apr. 30, 2018
Share Transactions [Line Items]
Consulting Services							$ 322,865
Credit Facility							483,829
Mineral Property							61,820
Reimbursable Expenses for Reno Creek Acquisition							483,829
Acquisition							20,332,617
Options Exercised							328,300
Settlement of Current Liabilities							698,961
Shares Issued Under 2017 Stock Incentive Plan							$ 729,644
Issuance Value [Member]
Share Transactions [Line Items]
Consulting Services			$ 91,903
Credit Facility	$ 900,000
Mineral Property					$ 61,820
Reimbursable Expenses for Reno Creek Acquisition					483,829
Consulting Services	38,559				192,403
Options Exercised	298,204	[1]	163,534	[2]	31,860	[3]
Settlement of Current Liabilities	557,283				141,678
Shares Issued Under 2017 Stock Incentive Plan	$ 240,790		$ 341,667		$ 785,329
Common Stock [Member]
Share Transactions [Line Items]
Balance (in shares)	156,452,824		155,954,055		139,815,124		139,815,124
Credit Facility (in shares)	641,574
Mineral Property (in shares)					46,134
Reimbursable Expenses for Reno Creek Acquisition (in shares)					353,160
Consulting Services (in shares)	28,511		55,909		124,469
Options Exercised (in shares)	657,246	[1]	184,416	[2]	66,516	[3]
Settlement of Current Liabilities (in shares)	364,652				104,706
Shares Issued Under 2017 Stock Incentive Plan (in shares)	173,307		258,444		591,496
Balance (in shares)	158,482,881		156,452,824		155,954,055		158,482,881
Minimum [Member] | Mineral Property [Member]
Share Transactions [Line Items]
Value per Share					$ 1.34
Maximum [Member] | Mineral Property [Member]
Share Transactions [Line Items]
Value per Share					1.34
Shares Issued For Credit Facility [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.40						$ 1.40
Shares Issued For Credit Facility [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.40						1.40
Settlement of Current Liabilities [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.33				1.35		1.33
Settlement of Current Liabilities [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.72				1.35		1.72
Consulting Services [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.33		$ 1.49		1.19		1.33
Consulting Services [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.43		1.84		1.73		1.43
Options Exercised [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	0.45	[1]	0.45	[2]	0.45	[3]	0.45	[1]
Options Exercised [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	1.28	[1]	1.32	[2]	$ 0.93	[3]	1.28	[1]
Reno Creek Acquisition [Member] | Issuance Value [Member]
Share Transactions [Line Items]
Acquisition					$ 20,332,617
Reno Creek Acquisition [Member] | Common Stock [Member]
Share Transactions [Line Items]
Acquisition (in shares)					14,852,450
Reno Creek Acquisition [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share					$ 1.3
Reno Creek Acquisition [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share					1.37
Reimbursable Expenses for Reno Creek Acquisition [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share					1.37
Reimbursable Expenses for Reno Creek Acquisition [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share					1.37
Shares Issued Under 2017 Stock Incentive Plan [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	1.30		1.06		1.28		1.30
Shares Issued Under 2017 Stock Incentive Plan [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.57		$ 1.77		$ 1.6		1.57
Diabase Acquisition [Member] | Issuance Value [Member]
Share Transactions [Line Items]
Acquisition	$ 232,321
Diabase Acquisition [Member] | Common Stock [Member]
Share Transactions [Line Items]
Acquisition (in shares)	164,767
Diabase Acquisition [Member] | Minimum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.41						1.41
Diabase Acquisition [Member] | Maximum [Member]
Share Transactions [Line Items]
Value per Share	$ 1.41						$ 1.41

[1] 238,125 options were exercised on a forfeiture basis resulting in 157,246 net shares issued

[2] 171,250 stock options were exercised on a forfeiture basis, resulting in 74,416 net shares being issued.

[3] 111,250 stock options were exercised on a forfeiture basis, resulting in 66,516 net shares being issued.