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Note 4 - Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule Of Inventory Current And Non Current [Table Text Block]
  

December 31,

 
  

2023

  

2022

 
         

Raw materials

 $68,110  $47,978 

Work-in-process

  8,912   5,114 

Finished goods

  11,911   15,773 

Supplies

  2,296   2,164 

Total inventories

 $91,229  $71,029