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Revolving Line Of Credit (Details) - USD ($)
$ in Thousands
 3 Months Ended
May 23, 2018
May 02, 2020
May 04, 2019
Feb. 01, 2020
Line Of Credit Facility [Line Items]        
Capitalization of fees paid $ 1,331      
Amortization of deferred financing fees   $ 22 $ 22  
Gross borrowings under revolving line of credit   274,959 185,616  
Gross paydowns under revolving line of credit   266,798 189,280  
Wells Fargo Senior Secured Revolving Credit Facility        
Line Of Credit Facility [Line Items]        
Line of credit facility, amount outstanding   132,923   $ 123,478
Amounts in depository under lock-box arrangements   $ 14,499   7,400
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   $ 772   $ 834
Amortization of deferred financing fees   $ 63 $ 63  
Wells Fargo Senior Secured Revolving Credit Facility | Minimum        
Line Of Credit Facility [Line Items]        
Line of credit facility gross borrowing base percentage   10.00%    
Wells Fargo Senior Secured Revolving Credit Facility | Maximum        
Line Of Credit Facility [Line Items]        
Line of credit facility, maximum borrowing capacity 250,000      
New Term Loan        
Line Of Credit Facility [Line Items]        
New term loan $ 40,000      
New Term Loan | LIBOR        
Line Of Credit Facility [Line Items]        
Term loan interest rate (as a percent) 5.75%      
Wells Fargo Stand-by Commercial Letters of Credit        
Line Of Credit Facility [Line Items]        
Net borrowing available under revolving line of credit   $ 1,705