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Stock-Based Compensation (Summary of SARs Activity) (Details) - SARs [Member] - $ / shares
3 Months Ended 9 Months Ended
May. 02, 2015
Oct. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Outstanding at January 31, 2015 40,375 40,375
Granted   156,175
Forfeited   (2,625)
Exercised   (40,375)
Outstanding at October 31, 2015   153,550
Outstanding at January 31, 2015 $ 17.17 $ 17.17
Granted $ 24.26 24.26
Forfeited   24.26
Exercised   17.17
Outstanding at October 31, 2015   $ 24.26
Outstanding at October 31, 2015   4 years 4 months 17 days