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Employee Benefit Plans (Narrative) (Details) - Employee Stock Purchase Plan [Member] - USD ($)
12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of common stock reserved for issuance 450,000    
Employee service period 1 year    
Maximum ownership rate 10.00%    
Purchase price, percentage of fair market value 85.00%    
Maximum annual purchases under plan $ 5,000    
Shares issued under plan 10,000 10,000 11,000
Proceeds from issuance of shares under plan $ 223,000 $ 236,000 $ 209,000
Shares of unissued common stock reserved for future purchase 94,000