Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
OPERATING ACTIVITIES
Net loss for the year	$ (5,042,577)	$ (3,451,426)
Adjustments to reconcile net loss to cash flows in operating activities
Stock-based compensation	917,386	841,524
Depreciation, amortization and accretion	76,386	88,776
Amortization of long-term debt discount	432,221	307,771
Deferred tax benefits	(1,678)	(5,168)
Loss (income) from equity-accounted investment	340,597	(387,869)
Realized loss on available-for-sale securities		799
Changes in operating assets and liabilities
Prepaid expenses and deposits	(85,062)	(387,917)
Other current assets	128,043	(10,801)
Accounts payable and accrued liabilities	(1,361,171)	(966,472)
Due to a related party	(68,600)	12,224
Other liabilities	(78,977)
NET CASH USED IN OPERATING ACTIVITIES	(4,743,432)	(3,958,559)
FINANCING ACTIVITIES
Proceeds from share issuance, net of issuance costs		21,639,005
NET CASH PROVIDED BY FINANCING ACTIVITIES		21,639,005
INVESTING ACTIVITIES
Investment in mineral rights and properties		(55,000)
Purchase of property, plant and equipment	(26,827)
Investment in term deposits		(15,000,000)
Proceeds from redemption of term deposits	11,831,671
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	11,804,844	(15,055,000)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	7,061,412	2,625,446
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	7,879,578	8,716,422
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 14,940,990	$ 11,341,868