Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
OPERATING ACTIVITIES
Net loss for the period	$ (3,461,059)	$ (1,888,661)	$ (8,424,596)	$ (6,931,238)
Adjustments to reconcile net loss to cash flows in operating activities
Stock-based compensation	1,218,058	798,250	2,596,573	1,715,636
Depreciation, amortization and accretion			196,778	158,138
Amortization of long-term debt discount			825,695	844,801
Gain on disposition of assets		(1,800)		(1,800)
Gain on loan extinguishment	(278,617)		(278,617)
Loss (income) from equity-accounted investment	(600,913)	(2,704,373)	102,692	(2,363,776)
Deferred tax benefits	(1,041)	(1,932)	(1,857)	(3,610)
Foreign exchange loss			1,457
Changes in operating assets and liabilities
Prepaid expenses and deposits			(355,290)	137,189
Other current assets			5,992	140,605
Accounts payable and accrued liabilities			(271,764)	(1,134,749)
Due to a related party			(14,814)	(36,374)
Other liabilities			14,579	(70,616)
NET CASH USED IN OPERATING ACTIVITIES			(5,603,172)	(7,545,794)
FINANCING ACTIVITIES
Proceeds from share issuance, net of issuance costs			15,419,317
NET CASH PROVIDED BY FINANCING ACTIVITIES			13,389,086
INVESTING ACTIVITIES
Investment in mineral rights and properties			(80,000)	(30,000)
Purchase of property, plant and equipment			(140,340)	(30,194)
Investment in term deposits			(10,000,000)
Proceeds from redemption of term deposits			6,000,000	11,831,671
Proceeds from disposition of assets				1,800
NET CASH (USED IN) PROVIDED BY INVESTING ACTIVITIES			(4,220,340)	11,773,277
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH			3,565,574	4,227,483
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD			6,986,919	7,879,578
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	$ 10,552,493	$ 12,107,061	10,552,493	12,107,061
Other Loans Payable [Member]
FINANCING ACTIVITIES
Repayment of long-term debt			(30,231)
Credit Agreement [Member]
FINANCING ACTIVITIES
Repayment of long-term debt			$ (2,000,000)