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Investment Securities (Unrealized Gain (Loss) on Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	$ 3,252	$ 5,752
Available-for-sale debt securities, Unrealized Losses	2	4
Available-for-sale debt securities, Fair Value	3,250	5,748
Held-to-maturity debt securities, Amortized Cost	130,560	128,292
Held-to-maturity debt securities, Unrealized Gains	3,518	4,524
Held-to-maturity debt securities, Unrealized Losses	559	22
Held-to-maturity debt securities, Fair Value	133,519	132,794
Available-for-sale securities and Held-to-maturity debt securities, Amortized Cost	133,812	134,044
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Gains	3,518	4,524
Available-for-sale securities and Held-to-maturity debt securities, Unrealized Losses	561	26
Available-for-sale securities and Held-to-maturity debt securities, Fair Value	136,769	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	16,980	11,511
Held-to-maturity debt securities, Unrealized Gains	46	66
Held-to-maturity debt securities, Unrealized Losses	420
Held-to-maturity debt securities, Fair Value	16,606	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	35,727	40,810
Held-to-maturity debt securities, Unrealized Gains	866	948
Held-to-maturity debt securities, Unrealized Losses	3	15
Held-to-maturity debt securities, Fair Value	36,590	41,743
State and political subdivision obligations [Member]
Schedule of Investments [Line Items]
Held-to-maturity debt securities, Amortized Cost	65,335	65,449
Held-to-maturity debt securities, Unrealized Gains	2,455	3,295
Held-to-maturity debt securities, Unrealized Losses	53	6
Held-to-maturity debt securities, Fair Value	67,737	68,738
Corporate debt securities [Member]
Schedule of Investments [Line Items]
Available-for-sale debt securities, Amortized Cost	3,250	5,750
Available-for-sale debt securities, Unrealized Losses	2	4
Available-for-sale debt securities, Fair Value	3,248	5,746
Held-to-maturity debt securities, Amortized Cost	12,518	10,522
Held-to-maturity debt securities, Unrealized Gains	151	215
Held-to-maturity debt securities, Unrealized Losses	83	1
Held-to-maturity debt securities, Fair Value	$ 12,586	$ 10,736

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