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Note 8 - Concentrations
9 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Concentration Risk Disclosure [Text Block]
Note
8
:      Concentrations
  
Revenue from customers representing
5%
or more of total revenue for the
nine
months ended
September 30, 2019
and
2018,
respectively were:
 
 
 
 
Nine Months Ended September 30,
 
Count
   
2019
   
2018
 
1     $
82,644
    $
254,018
 
2      
46,267
     
117,589
 
3      
41,213
     
93,563
 
4      
38,333
     
72,557
 
5      
38,246
     
44,316
 
6      
30,293
     
-