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ENTITY-WIDE DISCLOSURE (Schedule of Total Revenues by Geographical Location) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | $ 93,178 | $ 106,527 | $ 95,794
Product [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 23,151 | 36,053 | 30,431
Service [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 70,027 | 70,474 | 65,363
Israel [Member] | Product [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 2,893 | 6,289 | 5,005
Israel [Member] | Service [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 4,031 | 3,704 | 2,665
United states [Member] | Product [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 13,013 | 19,004 | 18,350
United states [Member] | Service [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 41,019 | 40,047 | 39,596
Other [Member] | Product [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | 7,245 | 10,760 | 7,076
Other [Member] | Service [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Total revenues | $ 24,977 | $ 26,723 | $ 23,102

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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