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Accounts Receivable
 3 Months Ended
Jul. 30, 2017
Receivables [Abstract]  
Accounts Receivable
4.  Accounts Receivable

A summary of accounts receivable follows:
 
(dollars in thousands)                                                                                  
   July 30, 2017    
July 31, 2016
    
April 30, 2017
  
Customers                                                                          
   $ 23,548    
$
24,669
    
$
26,211
  
Allowance for doubtful accounts                                                                                               
     (325 )    
(850
)
    
(414
)
Reserve for returns and allowances and discounts  
     (1,083 )    
(1,129
)
    
(1,220
)
 
$
22,140
    
$
22,690
    
$
24,577
  

A summary of the activity in the allowance for doubtful accounts follows:

    Three months ended  
(dollars in thousands)
  
July 30, 2017
    
July 31, 2016
  
Beginning balance
  
$
(414
)
  
$
(1,088
)
Provision for bad debts
    
89
      
227
  
Net write-offs, net of recoveries
    
-
      
11
  
Ending balance
  
$
(325
)
  
$
(850
)

A summary of the activity in the allowance for returns and allowances and discounts accounts follows:

   
Three months ended
  
(dollars in thousands)
  
July 30, 2017
    
July 31, 2016
  
Beginning balance
  
$
(1,220
)
  
$
(962
)
Provision for returns, allowances and discounts 
    
(628
)
    
(919
)
Credits issued
    
765
      
752
  
Ending balance
  
$
(1,083
)
  
$
(1,129
)