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Note 6 - Share Based Compensation
6 Months Ended
Jun. 30, 2020
Notes to Financial Statements  
Share-based Payment Arrangement [Text Block]
6.
SHARE BASED COMPENSATION
 
The following table presents share-based compensation expenses included in the Company's unaudited condensed interim consolidated statements of operations:
 
   
Three Months Ended June 30,
 
   
20
20
   
201
9
 
                 
Selling, general and administrative
  $
140,328
    $
115,526
 
Research, development and engineering
   
2,511
     
15,528
 
    $
142,839
    $
131,054
 
   
   
Six Months Ended June 30,
 
   
20
20
   
201
9
 
                 
Selling, general and administrative
  $
581,636
    $
568,613
 
Research, development and engineering
   
73,922
     
88,475
 
    $
655,558
    $
657,088