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Taxes on Income (Income Before Income Taxes and Income Taxes Expense (Benefit) Included in the Consolidated Statements of Operations) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Tax Disclosure [Abstract] |  |  |
Income (loss) before income taxes, Israel | $ 23,226 | $ 15,541 | $ 19,486
Income (loss) before income taxes, foreign jurisdiction | 2,356 | 324 | (1,061)
Income (loss) before income taxes | 25,582 | 15,865 | 18,425
Current taxes, Israel | 2,379 | 2,242 | 2,383
Current taxes, foreign jurisdiction | 1,095 | 720 | 465
Current taxes | 3,474 | 2,962 | 2,848
Current tax (benefits) expenses relating to prior years, Israel | 12 | 26 |
Current tax (benefits) expenses relating to prior years, foreign jurisdiction | (71) |  | (36)
Current tax (benefits) expenses relating to prior years | (59) | 26 | (36)
Deferred taxes, Israel | 549 | 10 | (437)
Deferred taxes, foreign jurisdiction | (96) | (270) | (470)
Deferred taxes | 453 | (260) | (907)
Income tax expense | $ 3,868 | $ 2,728 | $ 1,905

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