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Note C - Property, Plant and Equipment (Tables)
12 Months Ended
Jun. 30, 2018
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
2018
   
2017
 
Land
  $
6,525
    $
6,556
 
Buildings
   
46,473
     
46,479
 
Machinery and equipment
   
137,930
     
134,039
 
     
190,928
     
187,074
 
Less: accumulated depreciation
   
(141,988
)    
(138,862
)
    $
48,940
    $
48,212