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Note 4 - Inventory (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

As of

 
   

March 31, 2022

   

December 31, 2021

 

Raw materials

  $ 22,047     $ 22,047  

Work in-process

    14,720,449       17,453,358  

Finished goods

    1,535,005       2,034,974  

Inventory

  $ 16,277,501     $ 19,510,379