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Revolving Line Of Credit (Details) - USD ($)
$ in Thousands
 3 Months Ended
May 23, 2018
May 04, 2019
May 05, 2018
Feb. 02, 2019
May 22, 2018
Line Of Credit Facility [Line Items]          
Capitalization of fees paid $ 1,331        
Line of credit facility, amount outstanding 135,400        
Amortization of deferred financing fees   $ 22 $ 113    
Gross borrowings under revolving line of credit   185,616 206,533    
Gross paydowns under revolving line of credit   189,280 197,467    
Wells Fargo Senior Secured Revolving Credit Facility          
Line Of Credit Facility [Line Items]          
Line of credit facility, maximum borrowing capacity 250,000       $ 150,000
Line of credit facility, amount outstanding   150,016   $ 151,341  
Amounts in depository under lock-box arrangements   $ 8,444   7,035  
Line Of Credit Facility Covenant Terms   The Amended Credit Agreement also requires the Company to maintain a minimum availability at all times of not less than 10% of the gross borrowing base      
Line of credit , maturity date   May 23, 2023      
Deferred financing fees outstanding   $ 1,022   $ 1,085  
Amortization of deferred financing fees   $ 63 $ 22    
Wells Fargo Senior Secured Revolving Credit Facility | Minimum          
Line Of Credit Facility [Line Items]          
Line of credit facility gross borrowing base percentage   10.00%      
New Term Loan          
Line Of Credit Facility [Line Items]          
New term loan $ 40,000        
Wells Fargo Stand-by Commercial Letters of Credit          
Line Of Credit Facility [Line Items]          
Net borrowing available under revolving line of credit   $ 1,705