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Note 5 - Inventories (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

As of

December 31,

2024

   

As of

December 31,

2023

 

Raw materials

  $ 175,177     $ 227,110  

Work-in-process

    18,500       -  

Finished goods

    192,051       253,693  

Total

  $ 385,728     $ 480,803