Stock Option Activity (Detail) (USD $)	9 Months Ended	12 Months Ended
	Oct. 31, 2013	Jan. 31, 2013
Shares
Beginning balance	5,300,000
Granted	2,935,000
Cancelled	(1,000,000)
Exercised	0
Expired	0
Forfeited	0
Ending balance	7,235,000	5,300,000
Vested and exercisable	5,581,474
Weighted Average Per Share Exercise Price
Beginning balance	$ 0.18
Granted	$ 0.18
Cancelled	$ 0.21
Exercised	$ 0
Expired	$ 0
Forfeited	$ 0
Ending balance	$ 0.17	$ 0.18
Vested and exercisable	$ 0.17
Weighted Average Remaining Life (Years)
Balance	9 years 3 months 18 days	9 years 1 month 6 days
Granted	9 years 7 months 6 days
Cancelled	8 years 10 months 24 days
Exercised	0 years
Expired	0 years
Forfeited	0 years
Vested and exercisable	9 years 3 months 18 days
Aggregate Intrinsic Value
Beginning Balance	$ 0
Granted	0
Exercised	0
Expired	0
Forfeited	0
Ending balance	0	0
Vested and exercisable	$ 0