CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
SALES	$ 0	$ 0
COSTS AND EXPENSES
Cost of sales	0	0
Inventory write-down	0	392,149
Mineral property expenditures	2,260,131	1,588,143
General and administrative	3,177,588	2,305,789
Depreciation, amortization and accretion	577,242	541,079
Impairment loss on mineral property	0	28,891
Total Operating Expenses	6,014,961	4,856,051
LOSS FROM OPERATIONS	(6,014,961)	(4,856,051)
OTHER INCOME (EXPENSES)
Interest income	4,720	5,326
Interest and finance costs	(737,489)	(797,447)
Loss on fair value of variable share forward contract	0	(231,762)
Total Non-Operating Income Expense	(732,769)	(1,023,883)
LOSS BEFORE INCOME TAXES	(6,747,730)	(5,879,934)
DEFERRED INCOME TAX BENEFIT	21,503	0
NET LOSS FOR THE PERIOD	(6,726,227)	(5,879,934)
OTHER COMPREHENSIVE LOSS, NET OF INCOME TAXES	(224)	(2,301)
TOTAL COMPREHENSIVE LOSS FOR THE PERIOD	$ (6,726,451)	$ (5,882,235)
NET LOSS PER SHARE, BASIC AND DILUTED	$ (0.07)	$ (0.07)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING, BASIC AND DILUTED	91,280,843	86,429,172