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Note 3 - Inventories (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

As of
September 30,

2023

   

As of
December 31,

2022

 
                 

Finished goods

  $ 242,949     $ 290,616  

Raw materials

    190,346       133,183  

Work-In-Process

    6,694       6,694  

Total

  $ 439,989     $ 430,493