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Note 3 - Property, Plant and Equipment (Tables)
6 Months Ended
Oct. 27, 2012
Property, Plant and Equipment [Table Text Block]
   
(In thousands)
 
   
October 27,
2012
   
April 28,
2012
 
Land
  $ 9,779     $ 9,779  
Buildings and improvements
    48,550       48,363  
Machinery and equipment
    138,458       136,019  
Total
    196,787       194,161  
Less accumulated depreciation
    (141,576 )     (137,432 )
Property – net
  $ 55,211     $ 56,729