Warrants (Detail)	1 Months Ended			1 Months Ended	6 Months Ended	1 Months Ended	6 Months Ended
	Oct. 16, 2009	Jul. 31, 2012	Jan. 31, 2012	Oct. 16, 2009 Convertible Note	Jul. 31, 2012 Convertible Note	Oct. 16, 2009 Placement Agents	Jul. 31, 2012 Placement Agents
Class of Warrant or Right [Line Items]
Exercise Price	0.11485	0.125	0.11485		0.114850		0.114850
Warrants outstanding	1,500,000			1,250,000	1,250,000	250,000	250,000
Weighted average remaining contractual life					2 years 3 months		2 years 3 months
Warrants Exercisable					1,250,000		250,000
Weighted average exercise price					0.114850		0.114850