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Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | $ 8,138 | $ 5,752
Available-for-sale debt securities, Unrealized Gains | 24 |
Available-for-sale debt securities, Unrealized Losses |  | 4
Available-for-sale debt securities, Fair Value | 8,162 | 5,748
Held-to-maturity debt securities, Amortized Cost | 153,032 | 128,292
Held-to-maturity debt securities, Unrealized Gains | 3,788 | 4,524
Held-to-maturity debt securities, Unrealized Losses | 241 | 22
Held-to-maturity debt securities, Fair Value | 156,579 | 132,794
Available-for-sale securities and Held-to-maturity debt securities, Amortized Cost | 161,170 | 134,044
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Gains | 3,812 | 4,524
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Losses | 241 | 26
Available-for-sale securities and Held-to-maturity debt securities, Fair Value | 164,741 | 138,542
U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Fair Value |  | 2
U.S. Treasury and U.S. government agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity debt securities, Amortized Cost | 42,166 | 11,511
Held-to-maturity debt securities, Unrealized Gains | 59 | 66
Held-to-maturity debt securities, Unrealized Losses | 150 |
Held-to-maturity debt securities, Fair Value | 42,075 | 11,577
Mortgage-backed U.S. Government Agencies [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | 2 | 2
Available-for-sale debt securities, Fair Value | 2 | 2
Held-to-maturity debt securities, Amortized Cost | 31,210 | 40,810
Held-to-maturity debt securities, Unrealized Gains | 775 | 948
Held-to-maturity debt securities, Unrealized Losses | 1 | 15
Held-to-maturity debt securities, Fair Value | 31,984 | 41,743
State and political subdivision obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Held-to-maturity debt securities, Amortized Cost | 67,142 | 65,449
Held-to-maturity debt securities, Unrealized Gains | 2,774 | 3,295
Held-to-maturity debt securities, Unrealized Losses | 21 | 6
Held-to-maturity debt securities, Fair Value | 69,895 | 68,738
Corporate debt securities [Member] |  |
Schedule of Investments [Line Items] |  |
Available-for-sale debt securities, Amortized Cost | 8,136 | 5,750
Available-for-sale debt securities, Unrealized Gains | 24 |
Available-for-sale debt securities, Unrealized Losses |  | 4
Available-for-sale debt securities, Fair Value | 8,160 | 5,746
Held-to-maturity debt securities, Amortized Cost | 12,514 | 10,522
Held-to-maturity debt securities, Unrealized Gains | 180 | 215
Held-to-maturity debt securities, Unrealized Losses | 69 | 1
Held-to-maturity debt securities, Fair Value | $ 12,625 | $ 10,736

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