v3.26.1
Note 7 - Concentrations - Customers Representing 5% or More of Total Revenue (Details) - USD ($)
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Major Customers 1 [Member]    
Revenue $ 100,422 $ 191,682
Major Customers 2 [Member]    
Revenue 27,637 30,000
Major Customers 3 [Member]    
Revenue $ 26,950 27,633
Major Customers 4 [Member]    
Revenue   26,950
Major Customers 5 [Member]    
Revenue   $ 25,060