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Note 7 - Concentrations (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]
     

Nine Months Ended September 30,

 

Count

   

2025

   

2024

 
1     $ 191,682     $ 536,615  
2       94,825       240,578  
3       37,640       124,366  
4       32,794       49,339  
5       30,000       32,988