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Accounts Receivable
 3 Months Ended
Jul. 31, 2011
Accounts Receivable
4.  Accounts Receivable

A summary of accounts receivable follows:
 
             
(dollars in thousands)
  
July 31, 2011
    
May 1, 2011
  
Customers
   $ 20,177     $ 21,562  
Allowance for doubtful accounts
     (722 )     (776 )
Reserve for returns and allowances and discounts
     (550 )     (577 )
    $ 18,905     $ 20,209  
 
A summary of the activity in the allowance for doubtful accounts follows:

             
   
Three months ended
(dollars in thousands)
  
July 31, 2011
    
August 1, 2010
  
Beginning balance
   $ (776 )   $ (1,322 )
Provision for bad debts
     14       23  
Net write-offs, net of recoveries
     40       24  
Ending balance
   $ (722 )   $ (1,275 )

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

             
   
Three months ended
(dollars in thousands)
  
July 31, 2011
    
August 1, 2010
  
Beginning balance
   $ (577 )   $ (534 )
Provision for returns, allowances and discounts
     (628 )     (646 )
Credits issued
     655       567  
Ending balance
   $ (550 )   $ (613 )