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Stock Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 12 Months Ended
Apr. 28, 2015
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Jun. 14, 2012
Stock Options Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common stock reserved for issuance   380,000     3,000,000
Common stock reserved, amount after amendment         3,900,000
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total fair value of vested stock   $ 1,400,000 $ 478,000 $ 351,000  
Weighted average fair value of shares granted   $ 24.98 $ 24.43 $ 25.50  
Stock-based compensation expense       $ 906,000  
Cumulative share based compensation expense       3,200,000  
Reduced share based compensation expense       $ 2,300,000  
Unrecognized share-based compensation expense   $ 7,400,000      
Unrecognized compensation cost, recognition period   1 year 10 months 24 days      
Stock Appreciation Rights (SARs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized share-based compensation expense   $ 110,000      
Unrecognized compensation cost, recognition period   8 months 12 days      
Defined maximum gain $ 10.00 $ 10.00 $ 10.00 $ 6.67  
Exercise price $ 24.26