Warrants Outstanding (Detail) (USD $)	9 Months Ended
	Oct. 31, 2013
Class of Warrant or Right [Line Items]
Aggregate Intrinsic Value , Warrants Outstanding, Beginning Balance	$ 0
Aggregate Intrinsic Value, Warrants Granted	0
Aggregate Intrinsic Value, Warrants Exercised	0
Aggregate intrinsic value, Warrants, Cancelled	0
Aggregate Intrinsic Value, Warrants Outstanding, Ending Balance	$ 0
Number Of warrants Outstanding, Beginning Balance	2,936,000
Number Of warrants Granted	209,000
Number Of warrants Exercised	0
Number Of warrants Cancelled	0
Number Of warrants Outstanding, Ending Balance	3,145,000