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

Computers and equipment

 $67,077 

Furniture and fixtures

  33,063 

Leasehold improvements

  19,304 

Total property, plant, and improvements

  119,444 

Accumulated depreciation

  22,041 

Net property, plant and improvements

 $97,403