Common Stock Options and Warrants (Detail) - Stock Options Activity (USD $)	9 Months Ended
	Oct. 31, 2012
Outstanding at February 1, 2012	13,450,000
Outstanding at February 1, 2012 (in Dollars per share)	$ 0.25
Outstanding at February 1, 2012	2 years 7 days
Outstanding at February 1, 2012 (in Dollars)	$ 0.00
Issued	2,500,000
Issued (in Dollars per share)	$ 0.06
Issued	4 years 138 days
Issued (in Dollars)	0.00
Expired/Cancelled	(1,700,000)
Expired/Cancelled (in Dollars per share)	$ 0.10
Expired/Cancelled (in Dollars)	0.00
Outstanding at October 31, 2012	14,250,000
Outstanding at October 31, 2012 (in Dollars per share)	$ 0.23
Outstanding at October 31, 2012	2 years 208 days
Outstanding at October 31, 2012 (in Dollars)	0.00
Exercisable at October 31, 2012	14,250,000
Exercisable at October 31, 2012 (in Dollars per share)	$ 0.23
Exercisable at October 31, 2012	2 years 208 days
Exercisable at October 31, 2012 (in Dollars)	$ 0.00