Common Stock Options and Warrants (Detail) - Information about Outstanding warrants (USD $)								12 Months Ended
	Jan. 31, 2013	Jan. 07, 2013	Aug. 31, 2012	Jun. 19, 2012	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2007	Jan. 31, 2013 Exercise Price 0.05 [Member]	Jan. 31, 2013 Exercise Price 0.02 A [Member]	Jan. 31, 2013 Exercise Price 0.02 B [Member]
Weighted Average Exercise Price (in Dollars per Item)	0.02		0.02	0.05	0.12	0.12	0.04	0.05	0.02	0.02
Number of Shares (in Shares)	8,814,000				3,766,666	6,626,486		1,000,000	6,814,000	1,000,000
Remaining Contractual Life								2 years 138 days	4 years 211 days	2 years 339 days
Exercise Price Times Number of Shares		$ 25,417			$ 2,859,820		$ 16,000	$ 50,000	$ 136,280	$ 20,000
Aggregate Intrinsic Value								$ 0.00	$ 0.00	$ 0.00