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Note 2 - Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

September 30,

   

December 31,

 
   

2021

   

2020

 

Finished goods

  $ 86,455     $ 73,979  

Work in process

    2,288       1,634  

Raw materials

    14,628       14,153  

Inventories

  $ 103,371     $ 89,766