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Medical Payables (Detail) (USD $)
 12 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Medical Payables [Line Items]    
Balance, beginning of the year $ 0 $ 0
Incurred health care costs:    
Current year 288,601 0
Prior years 0 0
Total incurred health care costs 288,601 0
Claims paid:    
Current year (2,976) 0
Prior years 0 0
Total claims paid (2,976) 0
Balance, end of year $ 285,625 $ 0