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Note 5 - Property, Plant and Equipment (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

As of

 
   

September 30, 2021

   

December 31, 2020

 

Leasehold improvements

  $ 2,420,028     $ 2,420,028  

Computer equipment

    484,866       532,125  

Furniture and fixtures

    377,859       377,859  

Operating lease right-of-use assets

    3,678,647       2,944,932  
      6,961,400       6,274,944  

Less - accumulated depreciation and amortization

    (4,492,937 )     (4,170,954 )

Property, plant and equipment, net

  $ 2,468,463     $ 2,103,990