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

December 31,
2022

  

December 31,
2021

 
         

Finished goods

 $290,616  $193,287 

Raw materials

  133,183   183,410 

Work-In-Process

  6,694   10,987 

Total

 $430,493  $387,684