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

June 30,

  

December 31,

 
  

2021

  

2020

 

Finished goods

 $84,189  $73,979 

Work in process

  2,016   1,634 

Raw materials

  12,367   14,153 

Inventories

 $98,572  $89,766