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ENTITY-WIDE DISCLOSURE (Schedule of Total Revenues by Geographical Location) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenues - Sale of products $ 36,053 $ 30,431 $ 31,339
Total revenues - Sale of Services $ 70,474 $ 65,363 $ 54,268
Number of customers accounting for more than 10% of total net revenue
Israel [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenues - Sale of products $ 6,289 $ 5,005 $ 4,102
Total revenues - Sale of Services 3,704 2,665 814
United states [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenues - Sale of products 19,004 18,350 20,013
Total revenues - Sale of Services 40,047 39,596 32,738
Other [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Total revenues - Sale of products 10,760 7,076 7,224
Total revenues - Sale of Services $ 26,723 $ 23,102 $ 20,716