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Note 2 - Property, Plant and Equipment (Tables)
3 Months Ended
Jul. 27, 2019
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

(In thousands)

 
   

July 27,

2019

   

April 27,

2019

 

Land

  $ 9,835     $ 9,835  

Buildings and improvements

    58,290       58,291  

Machinery and equipment

    226,115       222,243  

Total

    294,240       290,369  

Less accumulated depreciation

    (182,602 )     (179,053 )

Property, plant and equipment – net

  $ 111,638     $ 111,316