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Note 13 - Notes Receivable (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
   

December 31, 2021

   

December 31, 2020

 

Note receivable

  $ 4,432,698     $ 8,023,807  

Allowance for losses

    (405,313 )     (405,313 )

Notes receivable, net

  $ 4,027,385     $ 7,618,494  
   

December 31, 2021

   

December 31, 2020

 

Note receivable

  $ 1,640,393     $ 1,640,393  

Allowance for losses

    (1,500,799 )     (1,193,359 )

Notes receivable, net

  $ 139,594     $ 447,034