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ENTITY-WIDE DISCLOSURES (Tables)
 12 Months Ended
Dec. 31, 2018
ENTITY-WIDE DISCLOSURES [Abstract]  
Schedule of Revenues by Geographic Area
Revenues by geographical areas were as follows:

   
Year ended
December 31,
  
   
2018
    
2017
    
2016
  
                   
North America
  
$
62,036
    
$
45,940
    
$
38,769
  
EMEA
    
17,474
      
10,570
      
11,342
  
APAC
    
5,039
      
4,321
      
3,337
  
Israel
    
446
      
703
      
535
  
Other
    
1,254
      
564
      
511
  
                         
   
$
86,249
    
$
62,098
    
$
54,494