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Note 2 - Property, Equipment and Software, Net (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
2019
    
2018
  
Furniture and equipment
   $
94,625
     $
92,988
  
Automobiles
    
4,912
      
4,911
  
Software
    
8,012
      
8,012
  
     
107,549
      
105,911
  
Less: accumulated depreciation
    
(102,480
 )    
(91,901
 )
Property, equipment and software, net
   $
5,069
     $
14,010