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Note 4 - Accounts Receivable (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Receivables with Imputed Interest [Table Text Block]
  

September 30,

  

December 31,

 
  

2022

  

2021

 
         

Trade accounts

 $5,026,184  $3,688,116 

Premiums

  1,514,522   901,769 

Allowance for doubtful accounts

  (137,885)  (121,022)
         

Total Accounts Receivable, net

 $6,402,821  $4,468,863