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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Schedule of Investments [Line Items] |  |
Available for Sale Securities, Amortized Cost, Due in 1 year or less | $ 4,047 |
Available for Sale Securities, Amortized Cost, Due after 1 year but within 5 years | 8,399 |
Available for Sale Securities, Amortized Cost, Due after 5 years but within 10 years | 11,728 |
Available for Sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total | 24,174 |
Available-for-sale debt securities, Amortized Cost | 37,170 | $ 116,027
Available for Sale Securities, Fair Value, Due in 1 year or less | 4,032 |
Available for Sale Securities, Fair Value, Due after 1 year but within 5 years | 8,385 |
Available for Sale Securities, Fair Value, Due after 5 years but within 10 years | 11,702 |
Available for Sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total | 24,119 |
Available for Sale Securities, Fair Value | 37,009 | 111,923
Held to Maturity, Due in 1 year or less, Amortized Cost | 3,994 |
Held to Maturity, Due after 1 year through 5 years, Amortized Cost | 16,423 |
Held to Maturity, Due after 5 years through 10 years, Amortized Cost | 73,962 |
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 94,379 |
Held-to-maturity debt securities, Amortized Cost | 136,477 | 168,370
Held to Maturity, Due in 1 year or less, Fair Value | 3,999 |
Held to Maturity, Due after 1 year through 5, Fair Value | 16,637 |
Held to Maturity, Due after 5 years through 10 years, Fair Value | 74,749 |
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value | 95,385 |
Held to Maturity, Fair Value | 137,476 | $ 166,582
Mortgage-backed securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale Securities without a Single Maturity Date, Amortized Cost | 12,996 |
Available for Sale Securities without a Single Maturity Date, Fair Value | 12,890 |
Held to Maturity without Single Maturity Date, Amortized Cost | 42,098 |
Held to Maturity without Single Maturity Date, Fair Value | $ 42,091 |

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