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Note D - Property, Plant and Equipment (Tables)
12 Months Ended
Jun. 30, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
2020
   
2019
 
Land
  $
6,589
    $
6,479
 
Buildings
   
48,168
     
47,627
 
Machinery and equipment
   
164,039
     
158,183
 
     
218,796
     
212,289
 
Less: accumulated depreciation
   
(146,064
)    
(141,031
)
    $
72,732
    $
71,258