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Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | $ 5,752 | $ 37,170
Available-for-sale debt securities, Unrealized Gains |  | 22
Available-for-sale debt securities, Unrealized Losses | 4 | 183
Available-for-sale debt securities, Fair Value | 5,748 | 37,009
Held-to-maturity debt securities, Amortized Cost | 128,292 | 136,477
Held-to-maturity debt securities, Unrealized Gains | 4,524 | 1,334
Held-to-maturity debt securities, Unrealized Losses | 22 | 335
Held-to-maturity debt securities, Fair Value | 132,794 | 137,476
Available-for-sale securities and Held-to-maturity debt securities, Amortized Cost | 134,044 | 173,647
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Gains | 4,524 | 1,356
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Losses | 26 | 518
Available-for-sale securities and Held-to-maturity debt securities, Fair Value | 138,542 | 174,485
U.S. Treasury and U.S. government agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity debt securities, Amortized Cost | 11,511 | 50,210
Held-to-maturity debt securities, Unrealized Gains | 66 | 46
Held-to-maturity debt securities, Unrealized Losses |  | 220
Held-to-maturity debt securities, Fair Value | 11,577 | 50,036
Mortgage-backed U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | 2 | 12,996
Available-for-sale debt securities, Unrealized Gains |  | 7
Available-for-sale debt securities, Unrealized Losses |  | 113
Available-for-sale debt securities, Fair Value | 2 | 12,890
Held-to-maturity debt securities, Amortized Cost | 40,810 | 42,098
Held-to-maturity debt securities, Unrealized Gains | 948 | 95
Held-to-maturity debt securities, Unrealized Losses | 15 | 102
Held-to-maturity debt securities, Fair Value | 41,743 | 42,091
Corporate debt securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | 5,750 | 1,250
Available-for-sale debt securities, Unrealized Gains |  | 9
Available-for-sale debt securities, Unrealized Losses | 4 |
Available-for-sale debt securities, Fair Value | 5,746 | 1,259
Held-to-maturity debt securities, Amortized Cost | 10,522 |
Held-to-maturity debt securities, Unrealized Gains | 215 |
Held-to-maturity debt securities, Unrealized Losses | 1 |
Held-to-maturity debt securities, Fair Value | 10,736 |
State and political subdivision obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost |  | 30
Available-for-sale debt securities, Fair Value |  | 30
Held-to-maturity debt securities, Amortized Cost | 65,449 | 44,169
Held-to-maturity debt securities, Unrealized Gains | 3,295 | 1,193
Held-to-maturity debt securities, Unrealized Losses | 6 | 13
Held-to-maturity debt securities, Fair Value | $ 68,738 | 45,349
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost |  | 22,894
Available-for-sale debt securities, Unrealized Gains |  | 6
Available-for-sale debt securities, Unrealized Losses |  | 70
Available-for-sale debt securities, Fair Value |  | $ 22,830

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