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INTANGIBLE ASSETS, NET (Schedule Of Intangible Assets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, net $ 6,576 $ 2,199  
Amortization expense 0 1,544 $ 1,648
Intangible assets acquired 3,412 1,407
Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Original amount 4,509 1,225  
Intangible assets acquired 3,284    
Intangible assets acquired, not resulted in cash flows 1,834    
Software development costs [Member]      
Finite-Lived Intangible Assets [Line Items]      
Original amount $ 2,067 $ 974