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Non-controlling Interest (Detail) (USD $)
12 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Noncontrolling Interest [Line Items]    
Balance as of January 31, 2013 $ (36,503)  
Stock-based compensation 12,602  
Distributions to non-controlling interest shareholder (240,000) (400,000)
Balance as of January 31, 2014 $ (263,901) $ (36,503)