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Revenue
 12 Months Ended
Dec. 31, 2025
Revenue from Contract with Customer [Abstract]  
Revenue

Note 9 – Revenue

 

The following table sets forth revenue by geographic area:

 

         
   Years Ended December 31, 
   2025   2024 
United States          
Product revenue  $377,265   $378,212 
Grant revenue   204,284    3,145,112 
Total United States   581,549    3,523,324 
Rest of World          
Product revenue   40,940    391,836 
Grant revenue   -    - 
Total Rest of World   40,940    391,836 
Total  $622,489   $3,915,160 
Percentage of revenue by area:          
United States   93%   90%
Rest of World   7%   10%

 

Deferred Revenue

 

Changes in the Company’s deferred revenue balance for the years ended December 31, 2025 and 2024 were as follows:

 

Balance as of December 31, 2023  $362,449 
Revenue recognized included in deferred revenue balance at the beginning of the period   (301,972)
Decrease due to reclassification of previously deferred amounts   (19,620)
Balance as of December 31, 2024  $40,857 
Revenue recognized included in deferred revenue balance at the beginning of the period   (40,857)
Increase due to prepayments from customers   14,800 
Balance as of December 31, 2025  $14,800