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Note 3 - Accrued Expenses
9 Months Ended
Sep. 30, 2023
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]

Note 3. Accrued Expenses

 

Accrued expenses are comprised of the following:

 

   

September 30, 2023

(unaudited)

   

December 31, 2022

 

Payroll and related costs

  $ 173,804     $ 195,803  

Professional and consulting

    736       3,685  

Royalties

    40,075       40,075  

Accrued cost of revenues

    211,363       168,657  

Sales tax

    22,228       22,228  

Other

    410       410  

Total

  $ 448,616     $ 430,858