Acquisition (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Nov. 05, 2018
USD ($)
Store
Payments
May 04, 2019
USD ($)
May 05, 2018
USD ($)
$ / shares
Feb. 02, 2019
USD ($)
Acquisition [Abstract]        
Net sales   $ 343,295 $ 274,707  
Current assets:        
Goodwill   19,661   $ 23,133
Pro Forma - Unaudited [Abstract]        
Net sales     333,996  
Net income     $ 27,506  
Basic earnings per share (in dollars per share) | $ / shares     $ 1.45  
Diluted earnings per share (in dollars per share) | $ / shares     $ 1.44  
City Gear [Member]        
Acquisition [Abstract]        
Purchase price, cash payable $ 88,000      
Number of contingent payments | Payments 2      
Maximum amount of contingent payments $ 25,000      
Number of stores acquired | Store 130      
Acquisition related expenses   1,700    
Intangible asset for favorable leases $ 1,400      
Liability for unfavorable leases 3,400      
Net sales   59,400    
Amortization of step-up inventory   1,000    
Current assets:        
Receivables   3,732    
Inventories   44,807    
Prepaid expense, other current and intangible assets   2,689    
Total current assets   51,228    
Goodwill   19,661    
Property and equipment   16,530    
Long-term intangible assets   33,503    
Deposits and other assets   567    
Deferred tax asset   638    
Total assets   122,127    
Current liabilities:        
Accounts payable   23,615    
Other accrued expenses and intangible liabilities   3,526    
Total current liabilities   27,141    
Other long-term liabilities and intangible liabilities   3,234    
Total liabilities   30,375    
Total purchase price   91,752    
Cash paid at closing   86,837    
Fair value of contingent earnout   6,000    
Net working capital and debt-like items adjustment   (1,085)    
City Gear [Member] | Trade Names [Member]        
Acquisition [Abstract]        
Indefinite-lived intangible asset fair value $ 32,400      
City Gear [Member] | As Reported [Member]        
Current assets:        
Receivables       3,168
Inventories       44,807
Prepaid expense, other current and intangible assets       2,716
Total current assets       50,691
Goodwill       23,133
Property and equipment       16,530
Long-term intangible assets       33,601
Deposits and other assets       567
Deferred tax asset       24
Total assets       124,546
Current liabilities:        
Accounts payable       23,615
Other accrued expenses and intangible liabilities       3,366
Total current liabilities       26,981
Other long-term liabilities and intangible liabilities       2,613
Total liabilities       29,594
Total purchase price       94,952
Cash paid at closing       86,837
Fair value of contingent earnout       9,200
Net working capital and debt-like items adjustment       $ (1,085)
City Gear [Member] | Adjustments [Member]        
Current assets:        
Receivables   564    
Inventories   0    
Prepaid expense, other current and intangible assets   (27)    
Total current assets   537    
Goodwill   (3,472)    
Property and equipment   0    
Long-term intangible assets   (98)    
Deposits and other assets   0    
Deferred tax asset   614    
Total assets   (2,419)    
Current liabilities:        
Accounts payable   0    
Other accrued expenses and intangible liabilities   160    
Total current liabilities   160    
Other long-term liabilities and intangible liabilities   621    
Total liabilities   781    
Total purchase price   (3,200)    
Cash paid at closing   0    
Fair value of contingent earnout   (3,200)    
Net working capital and debt-like items adjustment   $ 0