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Note 2 - Inventories (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Schedule Of Inventory Current And Non Current [Table Text Block]
  

September 30, 2023

  

December 31, 2022

 
         

Raw materials

 $59,408  $47,978 

Work-in-process

  9,180   5,114 

Finished goods

  12,205   15,773 

Supplies

  2,300   2,164 

Total inventories

 $83,093  $71,029