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Note 2 - Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
           

December 31, 2024

   

December 31, 2023

 

Financial Assets:

 

Level

   

Carrying

Value

   

Fair Value

   

Carrying

Value

   

Fair Value

 
                                         

Cash and cash equivalents

    2     $ 3,421,576     $ 3,421,576     $ 7,546,689     $ 7,546,689  

Certificates of deposit

    2       5,908,491       5,829,337       1,525,173       1,499,675  

Total

          $ 9,330,067     $ 9,250,913     $ 9,071,862     $ 9,046,364