Notes Payable - Shareholders (Detail) (USD $)	6 Months Ended	138 Months Ended
	Jul. 31, 2012	Jul. 31, 2012	Jan. 31, 2012	Oct. 27, 2011	Aug. 31, 2011	Jan. 31, 2010	Jan. 31, 2009	Jan. 31, 2005
Notes Payable, Related Parties, Current	$ 191,000	$ 191,000	$ 340,000	$ 30,000	$ 150,000	$ 50,000	$ 80,000	$ 30,000
Debt Instrument, Interest Rate, Effective Percentage	10.00%	10.00%
Repayments of Notes Payable	$ 149,000	$ 1,150,568