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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Schedule of Investments [Line Items] |  |
Available for Sale Securities, Amortized Cost, Due after 1 year but within 5 years | $ 4,750 |
Available for Sale Securities, Amortized Cost, Due after 5 years but within 10 years | 1,000 |
Available for Sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total | 5,750 |
Available-for-sale debt securities, Amortized Cost | 5,752 | $ 37,170
Available for Sale Securities, Fair Value, Due after 1 year but within 5 years | 4,747 |
Available for Sale Securities, Fair Value, Due after 5 years but within 10 years | 999 |
Available for Sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total | 5,746 |
Available for Sale Securities, Fair Value | 5,748 | 37,009
Held to Maturity, Due after 1 year through 5 years, Amortized Cost | 33,983 |
Held to Maturity, Due after 5 years through 10 years, Amortized Cost | 51,364 |
Held to Maturity, Due after 10 years, Amortized Cost | 2,135 |
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis | 87,482 |
Held-to-maturity debt securities, Amortized Cost | 128,292 | 136,477
Held to Maturity, Due after 1 year through 5, Fair Value | 35,196 |
Held to Maturity, Due after 5 years through 10 years, Fair Value | 53,659 |
Held to Maturity, Due after 10 years, Fair Value | 2,196 |
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value | 91,051 |
Held to Maturity, Fair Value | 132,794 | $ 137,476
Mortgage-backed securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available for Sale Securities without a Single Maturity Date, Amortized Cost | 2 |
Available for Sale Securities without a Single Maturity Date, Fair Value | 2 |
Held to Maturity without Single Maturity Date, Amortized Cost | 40,810 |
Held to Maturity without Single Maturity Date, Fair Value | $ 41,743 |

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