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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Net tax Benefit Expense | $ 600 | $ 4,800
Temporary surtax on allocated income | $ 1,000 |
January 1, 2018 through December 31, 2019 [Member] |  |
Percentage of surtax | 2.50% |
January 1, 2020 through December 31, 2021 [Member] |  |
Percentage of surtax | 1.50% |

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- Definition Percentage of surtax. + References No definition available. + Details
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- Definition Temporary surtax on allocated income. + References No definition available. + Details
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- Details
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- Details
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Period Type: |