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Summary of Significant Accounting Policies (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
May 05, 2018
USD ($)
Feb. 03, 2018
USD ($)
segment
subsidiary
Jan. 28, 2017
USD ($)
Jan. 30, 2016
USD ($)
Significant Accounting Policies [Line Items]        
Number of subsidiaries | subsidiary   4    
Fiscal period duration   371 days 364 days 364 days
Number of reportable segments | segment   1    
Allowance for doubtful accounts receivable   $ 0 $ 0  
Inventory valuation reserves   7,139 6,539  
Impairment charge to long-lived assets   0 0 $ 0
Sales returns reserve   697 964  
Gift breakage income   $ 1,337 347 846
Loyalty points dormancy period   18 months    
Recognized customer loyalty program breakage income   $ 1,022 611 232
Stop-loss insurance maintained by health insurance company, deductible per person under health insurance   100    
Reserve on claims included in accrued expenses   922 1,001  
Stop-loss insurance maintained by workers compensation insurance company, deductible per person under workers compensation insurance   150    
Workers compensation plan, estimated IBNR   659 650  
Advertising Expense   $ 7,760 7,513 $ 6,634
Minimum        
Significant Accounting Policies [Line Items]        
Furniture, fixtures, and equipment, estimated useful life   P3Y    
Maximum        
Significant Accounting Policies [Line Items]        
Furniture, fixtures, and equipment, estimated useful life   P10Y    
Wells Fargo Senior Secured Revolving Credit Facility        
Significant Accounting Policies [Line Items]        
In Transit Deposits   $ 6,629 $ 6,138  
Accounting Standards Update 2014-09 [Member] | Difference between Revenue Guidance in Effect before and after Topic 606        
Significant Accounting Policies [Line Items]        
Gift breakage income $ 3,400