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Summary of Significant Accounting Policies - Additional Information (Details)
 12 Months Ended
Jan. 30, 2016
USD ($)
Subsidiaries
Segment
Jan. 31, 2015
USD ($)
Feb. 01, 2014
USD ($)
Significant Accounting Policies [Line Items]      
Number of subsidiaries | Subsidiaries 4    
Fiscal period duration 364 days 364 days 364 days
Number of reportable segment | Segment 1    
Allowance for doubtful accounts receivable $ 0 $ 113,000  
Inventory reserves 4,306,000 4,089,000  
Impairment charge to long-lived assets 0 0 $ 0
Sales return reserve 799,000 716,000  
Recognized gift card breakage income $ 846,000 833,000 0
Loyalty points dormancy period 18 months    
Recognized customer loyalty program breakage income $ 232,000 0  
Stop-loss insurance maintained by health insurance company, deductible per person under health insurance 100,000    
Reserve on claims included in accrued expenses 980,000 811,000  
Stop-loss insurance maintained by workers compensation insurance company, deductible per person under workers compensation insurance 150,000    
Workers compensation plan, estimated IBNR 527,000 107,000  
Net advertising expenses $ 6,634,000 4,629,000 $ 4,685,000
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]      
Amounts in depository under lock-box arrangements $ 5,939,000 $ 5,987,000