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Note 5 - Inventories (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

June 30,

  

December 31,

 
  

2022

  

2021

 
         

Finished goods

 $70,921  $50,416 

Work-in-process

  14,081   8,916 

Raw material and supplies

  46,516   44,687 
  $131,518  $104,019