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Note 13 - Revenue (Tables)
12 Months Ended
Dec. 31, 2025
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
  

During the Years Ended December 31,

 
  

2025

  

Percent

  

2024

  

Percent

 

United States

 $24,391,664   88% $22,893,721   86%

Other

  3,252,510   12%  3,599,448   14%

Total Product Sales

 $27,644,174   100% $26,493,169   100%