Investment Securities (Amortized Cost and Estimated Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	$ 138,843		$ 158,447
Available-for-sale securities, Gross Unrealized Gains	461		117
Available-for-sale securities, Gross Unrealized Losses	393		4,132
Available-for-sale, at fair value	138,911		154,432
Held-to-maturity Securities, Amortized Cost	9,780		6,043
Held-to-maturity securities, Gross Unrealized Gains	13		14
Held-to-maturity securities, Gross Unrealized Losses	78		57
Held-to-maturity securities, Estimated Fair Value	9,715		6,000
Equity securities, at fair value	1,339		1,269
Accounting Standards Update 2016-01
Schedule of Available-for-sale Securities [Line Items]
Cumulative effect adjustment (ASU 2016-01)	1,300		1,300
Fair value adjustment recorded through earnings	47	$ (20)
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	33,917		34,285
Available-for-sale securities, Gross Unrealized Gains	3		2
Available-for-sale securities, Gross Unrealized Losses	81		651
Available-for-sale, at fair value	33,839		33,636
Held-to-maturity Securities, Amortized Cost	1,380		1,642
Held-to-maturity securities, Gross Unrealized Gains	12
Held-to-maturity securities, Gross Unrealized Losses			25
Held-to-maturity securities, Estimated Fair Value	1,392		1,617
States and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	1,400		1,401
Held-to-maturity securities, Gross Unrealized Gains	1		14
Held-to-maturity securities, Estimated Fair Value	1,401		1,415
Mortgage Backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, Amortized Cost	104,926		124,162
Available-for-sale securities, Gross Unrealized Gains	458		115
Available-for-sale securities, Gross Unrealized Losses	312		3,481
Available-for-sale, at fair value	105,072		120,796
Other Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	7,000		3,000
Held-to-maturity securities, Gross Unrealized Losses	78		32
Held-to-maturity securities, Estimated Fair Value	$ 6,922		$ 2,968

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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