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Note 8 - Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

December 31,

 
  

2020

  

2019

 

Land

 $1,115  $1,431 

Buildings and improvements

  19,917   29,722 

Machinery and equipment

  124,114   132,134 

Construction in progress

  1,603   5,090 
   146,749   168,377 

Accumulated depreciation

  (112,248)  (126,434)

Property, plant and equipment, net

 $34,501  $41,943