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Note 5 - Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
  

As of

 
  

December 31, 2021

  

December 31, 2020

 

Leasehold improvements

 $2,420,028  $2,420,028 

Computer equipment

  511,062   532,125 

Furniture and fixtures

  377,859   377,859 

Operating lease right-of-use asset

  3,678,647   2,944,932 
   6,987,596   6,274,944 

Less-accumulated depreciation

  (4,621,639)  (4,170,954)

Property, plant and equipment, net

 $2,365,957  $2,103,990