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Taxes on Income (Details 3) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Long-term tax assets $ 1,858 $ 2,990
Long-term tax liabilities (10,343) (11,331)
Net deferred tax liabilities $ (8,485) $ (8,341)