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Subsequent Events (Details) - USD ($)
$ in Millions
6 Months Ended
Jul. 31, 2015
Aug. 26, 2015
Subsequent Events [Abstract]    
Stock Repurchased During Period, Shares 233,243  
Stock Repurchased During Period, Value (in Dollars) $ 11.6  
Stock Repurchase Program, Number of Shares Authorized to be Repurchased   500,000