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Customer Receivables
9 Months Ended
Jan. 31, 2012
Customer Receivables [Abstract]  
Customer Receivables
NOTE F--CUSTOMER RECEIVABLES

The components of customer receivables were:

   
January 31,
   
April 30,
 
(in thousands)
 
2012
   
2011
 
Gross customer receivables
  $ 26,774     $ 33,039  
Less:
               
Allowance for doubtful accounts
    (142 )     (67 )
Allowance for returns and discounts
    (1,621 )     (1,905 )
                 
Net customer receivables
  $ 25,011     $ 31,067