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Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Oct. 29, 2016
Feb. 02, 2016
Feb. 01, 2014
Accounting Policies [Abstract]            
Cash and cash equivalents $ 62,944 $ 68,814 $ 61,376   $ 68,814 $ 48,253
Credit and debit card receivables 4,900 5,500        
Impairment charges 4,500 1,000        
Self-insurance reserves 3,411 3,305        
Advertising expenses 42,900 42,100 $ 41,600      
Net deferred tax assets $ 9,600 $ 8,219        
Current deferred tax assets reclassified to noncurrent deferred tax assets       $ 2,700