XML 24 R15.htm IDEA: XBRL DOCUMENT v3.21.2
Note 2 - Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
           

September 30, 2021

   

December 31, 2020

 

Financial Assets:

 

Level

   

Carrying Value

   

Fair Value

   

Carrying Value

   

Fair Value

 
                                         

Cash and cash equivalents

    1     $ 7,387,932     $ 7,387,932     $ 6,463,255     $ 6,463,255  

Equity investment in mutual funds

    1       504,568       502,794       504,369       502,595  

Total

          $ 7,892,500     $ 7,890,726     $ 6,967,624     $ 6,965,850