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Securities (Narrative Disclosures) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) securities | Dec. 31, 2017 USD ($)
Investments, Debt and Equity Securities [Abstract] |  |
Available-for-sale Securities, Restricted | $ | $ 11,500 | $ 2,800
Available-for-sale securities in unrealized loss positions | 135 |
Available-for-sale securities in an unrealized loss position, twelve months or greater | 128 |
Other than temporary impairment on available-for-sale securities | $ | $ 0 | 0
Held-to-maturity securities in unrealized loss positions | 63 |
Held-to-maturity securities in an unrealized loss position, twelve months or greater | 37 |
Other than temporary impairment on held-to-maturity securities | $ | $ 0 | $ 0

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