Investment Securities (Amortized Cost and Estimated Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	$ 113,123		$ 137,465
Available-for-sale, Pledged available-for-sale securities, Estimated Fair Value	3,189		3,626
Available-for-sale securities, Gross Unrealized Gains	1,913		2,254
Available-for-sale securities, Gross Unrealized Losses	1,079		151
Available-for-sale, at fair value	113,957		139,568
Held-to-maturity Securities, Amortized Cost	198,884		65,706
Held-to-maturity securities, Gross Unrealized Gains	421		185
Held-to-maturity securities, Gross Unrealized Losses	1,314		63
Held-to-maturity securities, Estimated Fair Value	197,991		65,828
Equity securities, at fair value	1,384		1,395
Accounting Standards Update 2016-01
Schedule of Available-for-sale Securities [Line Items]
Equity securities, at fair value	1,400		1,400
Accounting Standards Update 2016-01 | Revision of Prior Period, Change in Accounting Principle, Adjustment [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value adjustment recorded through earnings	(20)	$ 32
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	18,574		23,600
Available-for-sale securities, Gross Unrealized Gains	5		20
Available-for-sale securities, Gross Unrealized Losses	592		83
Available-for-sale, at fair value	17,987		23,537
Held-to-maturity Securities, Amortized Cost	63,139		18,893
Held-to-maturity securities, Gross Unrealized Gains	41		38
Held-to-maturity securities, Gross Unrealized Losses	430		43
Held-to-maturity securities, Estimated Fair Value	62,750		18,888
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	400		400
Held-to-maturity securities, Gross Unrealized Gains	1		1
Held-to-maturity securities, Estimated Fair Value	401		401
Mortgage-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	94,549		113,865
Available-for-sale securities, Gross Unrealized Gains	1,908		2,234
Available-for-sale securities, Gross Unrealized Losses	487		68
Available-for-sale, at fair value	95,970		116,031
Held-to-maturity Securities, Amortized Cost	116,305		27,347
Held-to-maturity securities, Gross Unrealized Gains	157		7
Held-to-maturity securities, Gross Unrealized Losses	869		18
Held-to-maturity securities, Estimated Fair Value	115,593		27,336
Other debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	19,040		19,066
Held-to-maturity securities, Gross Unrealized Gains	222		139
Held-to-maturity securities, Gross Unrealized Losses	15		2
Held-to-maturity securities, Estimated Fair Value	$ 19,247		$ 19,203