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Note 5 - Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

June 30,
2022

   

December 31,
2021

 

Land

  $ 6,193     $ 5,813  

Buildings

    116,882       112,760  

Machinery and equipment

    210,258       188,123  

 

    333,333       306,696  

Less accumulated depreciation

    (203,316 )     (202,403 )

Property, plant and equipment, net

  $ 130,017     $ 104,293