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Taxes on Income (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Taxes on Income [Abstract]      
Domestic $ 4,751 $ 3,018 $ (755)
Foreign (1,767) (1,079) (47)
Income (loss) before income taxes $ 2,984 $ 1,939 $ (802)