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

June 30,

  

December 31,

 
  

2022

  

2021

 

Raw materials

 $69,038  $67,127 

Work in progress

  46,462   31,103 

Finished goods

  45,093   41,153 

Inventories

 $160,593  $139,383