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Note 4 - Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
  

September 30, 2021

  

December 31, 2020

 
         

Accrued commissions

 $699,942  $373,154 

Reserve for merchant losses

  608,149   515,199 

Other accrued expenses

  80,935   225,412 

Accrued taxes

  270,136   132,363 

Accrued salaries

  87,064   217,816 

Total accrued expenses

 $1,746,226  $1,463,944