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Note 6 - Property and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

December 31,

 
  

2021

  

2020

 

Computer equipment and software

 $328,397  $291,925 

Furniture and equipment

  117,307   75,747 

Leasehold improvements

  7,438   6,814 

Property and equipment, gross

  453,142   374,486 

Less: Accumulated depreciation

  (347,886)  (312,320)

Property and equipment, net

 $105,256  $62,166