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Note 2 - Inventories (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule Of Inventory Current And Non Current [Table Text Block]
   

September 30, 2025

   

December 31, 2024

 
                 

Raw materials

  $ 48,315     $ 54,024  

Work-in-process

    1,329       1,008  

Finished goods

    21,973       22,204  

Supplies

    2,904       2,534  

Total inventories

  $ 74,521     $ 79,770