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Segment Information (Schedule of Revenues by Geographic Area) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 123,174 $ 93,485 $ 79,228 [1]
Asia Pacific [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 98,468 79,105 66,275
United States [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues 13,227 9,484 8,151
Europe [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Revenues $ 11,479 $ 4,896 $ 4,802
[1] Reclassified - due to presenting PCB operation as discontinued operation - See Note 19