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Note 5 - Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

December 31,

 
  

2021

  

2020

 

Land

 $3,085  $3,085 

Buildings, improvements and leaseholds

  19,558   15,972 

Machinery, equipment and fixtures

  91,351   76,906 
   113,994   95,963 

Accumulated depreciation and amortization

  (64,304)  (59,319)

Property, plant and equipment, net

 $49,690  $36,644