Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
COSTS AND EXPENSES
Mineral property expenditures	$ 1,523,451	$ 866,243
General and administrative	2,315,170	2,258,935
Depreciation, amortization and accretion	76,386	88,776
	3,915,007	3,213,954
LOSS FROM OPERATIONS	(3,915,007)	(3,213,954)
OTHER INCOME (EXPENSES)
Interest income	89,181	57,904
Interest expenses and finance costs	(885,125)	(754,849)
(Loss) income from equity-accounted investment	(340,597)	387,869
Other income	7,293	66,436
	(1,129,248)	(242,640)
LOSS BEFORE INCOME TAXES	(5,044,255)	(3,456,594)
DEFERRED TAX BENEFITS	1,678	5,168
NET LOSS FOR THE PERIOD	(5,042,577)	(3,451,426)
OTHER COMPREHENSIVE LOSS, NET OF INCOME TAXES	(9,894)
TOTAL COMPREHENSIVE LOSS FOR THE PERIOD	$ (5,052,471)	$ (3,451,426)
NET LOSS PER SHARE, BASIC AND DILUTED (in dollars per share)	$ (0.03)	$ (0.02)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING, BASIC AND DILUTED (in shares)	181,240,702	166,397,293