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Note 2 - Inventories (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
  

March 31,

  

December 31,

 
  

2022

  

2021

 

Finished goods

 $95,345  $90,395 

Work in process

  1,298   1,351 

Raw materials

  32,871   28,809 

Inventories

 $129,514  $120,555