XML 46 R33.htm IDEA: XBRL DOCUMENT v3.21.2
Note 9 - Fair Value (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

Total Carrying Amount in Consolidated Balance Sheet September 30, 2021

  

Quoted Prices in Active Markets for Identical Assets

  

Realized Gains and (Losses)

  

Total Changes in Fair Values Included in Current Period Earnings (Loss)

 
                 

Marketable equity securities and U.S. Treasury trading securities

 $131,272,283  $131,272,283  $37,854,470  $47,904,192