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

December 31, 2021

  

December 31, 2020

 

Land improvements

 $806  $806 

Building and improvements

  89,698   88,280 

Machinery and equipment

  266,386   253,738 

Furniture and fixtures

  5,658   5,540 

Computer equipment and software

  12,727   11,912 

Transportation equipment

  

726

   699 
   376,001   360,975 

Less accumulated depreciation and amortization

  (167,772)  (142,434)
   208,229   218,541 

Construction in progress

  33,705   33,342 

Land

  1,101   1,101 

Total property, plant and equipment, net

 $243,035  $252,984