Related Party Transactions (Detail) (USD $)								12 Months Ended
	Oct. 31, 2012	Jan. 31, 2012	Oct. 27, 2011	Aug. 31, 2011	Jan. 31, 2010	Jan. 31, 2009	Jan. 31, 2005	Dec. 31, 2011 Minex Exploration [Member]	Oct. 31, 2012 Minex Exploration [Member]
Mining Claims Maintenance Services Cost								$ 86,358
Due to Related Parties									51,358
Notes Payable, Related Parties, Current	191,000	340,000	30,000	150,000	50,000	80,000	30,000
Accounts Payable, Related Parties, Current	284,936	227,373
Other Accounts Payable and Accrued Liabilities	$ 271,667	$ 271,667