CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	3 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
SALES	$ 0	$ 2,153,250
COSTS AND EXPENSES
Cost of sales	0	1,863,109
Inventory write-down	392,149	0
Mineral property expenditures	1,588,143	4,377,285
General and administrative	2,305,789	2,724,937
Depreciation, amortization and accretion	541,079	496,347
Impairment loss on mineral property	28,891	0
Total Costs and Expenses	4,856,051	9,461,678
LOSS FROM OPERATIONS	(4,856,051)	(7,308,428)
OTHER INCOME(EXPENSES)
Interest income	5,326	14,578
Interest and finance costs	(797,447)	(6,110)
Loss on fair value of variable share forward contract	(231,762)	0
Gain on settlement of accounts payable	0	10,909
Loss on settlement of asset retirement obligations	0	(8,572)
Total Non-Operating Income (Expense)	(1,023,883)	10,805
NET LOSS FOR THE PERIOD	(5,879,934)	(7,297,623)
OTHER COMPREHENSIVE LOSS, NET OF INCOME TAXES	(2,301)	(481)
TOTAL COMPREHENSIVE LOSS FOR THE PERIOD	$ (5,882,235)	$ (7,298,104)
NET LOSS PER SHARE, BASIC AND DILUTED	$ (0.07)	$ (0.09)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING, BASIC AND DILUTED	86,429,172	85,172,927