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Note 5 - Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

June 30,

2021

  

December 31,

2020

 

Land

 $5,923  $5,805 

Buildings

  111,368   111,876 

Machinery and equipment

  186,657   184,362 
   303,948   302,043 

Less accumulated depreciation

  (198,094)  (193,377

)

Property, plant and equipment, net

 $105,854  $108,666