CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - 3 months ended Oct. 31, 2017 - USD ($)		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Share Issuance Obligation [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Jul. 31, 2017		$ 46,135,405	$ 139,815	$ 272,697,152	$ 638,142	$ (227,325,002)	$ (14,702)
Balance (in shares) at Jul. 31, 2017			139,815,124
Common stock Issued upon exercise of stock options			$ 67	(67)	0	0	0
Common stock Issued upon exercise of stock options (in shares)	[1]		66,516
Common stock Issued for Reno Creek Acquisition		20,332,617	$ 14,853	20,317,764	0	0	0
Common stock Issued for Reno Creek Acquisition (in shares)			14,852,450
Common stock Issued for Reimbursable Expenses for Reno Creek Acquisition		483,829	$ 353	483,476	0	0	0
Common stock Issued for Reimbursable Expenses for Reno Creek Acquisition (in shares)			353,160
Common stock Issued for mineral property		61,820	$ 46	61,774	0	0	0
Common stock Issued for mineral property (in shares)			46,134
Common stock Issued for settlement of liabilities		141,678	$ 105	141,573	0	0	0
Common stock Issued for settlement of liabilities (in shares)			104,706
Stock-based compensation Common stock issued for consulting services		192,403	$ 124	192,279	0	0	0
Stock-based compensation Common stock issued for consulting services (in shares)			124,469
Stock-based compensation Common stock issued under Stock Incentive Plan		147,187	$ 591	784,738	(638,142)	0	0
Stock-based compensation Common stock issued under Stock Incentive Plan (in shares)			591,496
Stock-based compensation Stock options issued to consultants		(169)	$ 0	(169)	0	0	0
Stock-based compensation Stock options issued to management		94,331	0	94,331	0	0	0
Stock-based compensation Stock options issued to employees		182,617	0	182,617	0	0	0
Warrants Issued in connection with Reno Creek Acquisition		5,088,928	0	5,088,928	0	0	0
Net loss for the period		(4,555,840)	0	0	0	(4,555,840)	0
Other comprehensive income		383	0	0	0	0	383
Balance at Oct. 31, 2017		$ 68,305,189	$ 155,954	$ 300,044,396	$ 0	$ (231,880,842)	$ (14,319)
Balance (in shares) at Oct. 31, 2017			155,954,055

[1] 111,250 stock options were exercised on a forfeiture basis, resulting in 66,516 net shares being issued.