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Securities (Details 1) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Contractual Maturities Of Available For Sale Debt Securities [Line Items] |  |
Estimated Fair Value, Due in one year or less | $ 2,821 |
Estimated Fair Value, Due from one to five years | 7,698 |
Estimated Fair Value, Due from five to ten years | 16,882 |
Estimated Fair Value, Due over ten years | 79,086 |
Estimated Fair Value, Total | $ 241,768 | $ 244,490
Tax-Equivalent Yield, Due in one year or less | 5.90% |
Tax-Equivalent Yield, Due from one to five years | 3.37% |
Tax-Equivalent Yield, Due from five to ten years | 4.02% |
Tax-Equivalent Yield, Due over ten years | 4.10% |
Tax-Equivalent Yield, Total | 3.35% |
Collateralized Mortgage Backed Securities [Member] |  |
Contractual Maturities Of Available For Sale Debt Securities [Line Items] |  |
Estimated Fair Value, Total | $ 135,281 | $ 132,938
Tax-Equivalent Yield, Total | 2.78% |

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