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Summary of Restricted Stock Award (Detail) (USD $)
 6 Months Ended 12 Months Ended
Jul. 31, 2013
Jan. 31, 2013
Schedule Of Share Based Compensation Restricted Stock Units Award Activity [Line Items]    
Shares,Balance, January 31, 2013 3,690,000  
Shares,Granted 60,000  
Shares,Released 0  
Shares,Balance, July 31, 2013 3,750,000 3,690,000
Balance, Weighted Average Remaining Life (Years) 0 years 0 years
Aggregate Intrinsic Value,Balance, January 31, 2013 $ 36,900  
Aggregate Intrinsic Value,Granted 600  
Aggregate Intrinsic Value,Balance, July 31, 2013 $ 37,500 $ 36,900
Weighted Average Fair Value,Balance, January 31, 2013 $ 0.01  
Weighted Average Fair Value,Granted $ 0.01  
Weighted Average Fair Value,Balance, July 31, 2013 $ 0.01 $ 0.01