CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jan. 31, 2013	Jul. 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 12,313,815	$ 25,015,284
Available-for-sale securities	37,814	41,973
Accounts and interest receivable	303,578	273,584
Inventories	1,304,954	1,876,100
Prepaid expenses and deposits	890,494	717,260
Total Current Assets	14,850,655	27,924,201
MINERAL RIGHTS AND PROPERTIES	42,600,151	42,594,920
PROPERTY, PLANT AND EQUIPMENT	8,698,463	9,081,234
RECLAMATION DEPOSITS	6,038,929	5,543,040
Total Assets	72,188,198	85,143,395
CURRENT LIABILITIES
Accounts payable and accrued liabilities	4,003,401	5,271,158
Due to related parties	3,000	47,443
Current portion of asset retirement obligations	79,874	133,298
Total Current Liabilities	4,086,275	5,451,899
DEFERRED INCOME TAX LIABILITIES	791,939	791,939
ASSET RETIREMENT OBLIGATIONS	3,508,407	2,979,076
Total Liabilities	8,386,621	9,222,914
STOCKHOLDERS' EQUITY
Capital stock Common stock $0.001 par value: 750,000,000 shares authorized, 85,495,453 shares issued and outstanding (July 31, 2012 - 84,975,155)	85,497	84,975
Additional paid-in capital	197,257,447	196,486,881
Share issuance obligation	194,700	194,700
Accumulated deficit	(133,709,781)	(120,823,948)
Accumulated other comprehensive income	(26,286)	(22,127)
Stockholders' Equity	63,801,577	75,920,481
Total Liabilities and Stockholders' Equity	$ 72,188,198	$ 85,143,395