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Note 3 - Cash, Cash Equivalents, and Restricted Cash (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
  

March 31,

  

December 31,

 
  

2022

  

2021

 
         

Cash and cash equivalents

 $86,605,055  $72,508,528 

Funds held as collateral

  15,718,591   9,185,872 
         

Total Cash, Cash Equivalents, and Restricted Cash as Presented in the Consolidated Statement of Cash Flows

 $102,323,646  $81,694,400