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Nature of Operations and Summary of Significant Accounting Policies Retained Earnings Impact of ASU 842 (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Jan. 01, 2019
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Cumulative Effect of New Accounting Principle in Period of Adoption | $ 687 |
Retained earnings |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  | $ 687

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- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
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- Details
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