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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Schedule of Investments [Line Items] |  |
Available for sale Securities, Amortized Cost, Due after 1 year but within 5 years | $ 19,562 |
Available for sale Securities, Amortized Cost, Due after 5 years but within 10 years | 39,391 |
Available for sale Securities, Amortized Cost, Due after 10 years | 3,255 |
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total | 62,208 |
Available-for-sale debt securities, Amortized Cost | 83,738 | $ 116,027
Available for sale Securities, Fair Value, Due after 1 year but within 5 years | 19,445 |
Available for sale Securities, Fair Value, Due after 5 years but within 10 years | 39,392 |
Available for sale Securities, Fair Value, Due after 10 years | 3,209 |
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total | 62,046 |
Available for sale Securities, Fair Value | 83,404 | 111,923
Held-to-maturity, Due in 1 year or less, Amortized Cost | 4,983 |
Held-to-maturity, Due after 1 year through 5 years, Amortized Cost | 15,989 |
Held-to-maturity, Due after 5 years through 10 years, Amortized Cost | 79,833 |
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 100,805 |
Held-to-maturity debt securities, Amortized Cost | 160,182 | 168,370
Held-to-maturity, Due in 1 year or less, Fair Value | 4,981 |
Held-to-maturity, Due after 1 year through 5, Fair Value | 16,153 |
Held-to-maturity, Due after 5 years through 10 years, Fair Value | 82,117 |
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value | 103,251 |
Held-to-maturity, Fair Value | 162,863 | $ 166,582
Mortgage-backed securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available for sale Securities without a Single Maturity Date, Amortized Cost | 21,530 |
Available for sale securities without a Single Maturity Date, Fair Value | 21,358 |
Held-to-maturity without Single Maturity Date, Amortized Cost | 59,377 |
Held-to-maturity without Single Maturity Date, Fair Value | $ 59,612 |

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