Investment Securities (Amortized Cost and Estimated Fair Values of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	$ 59,949	$ 62,026
Held-to-maturity Securities, Unrealized Gains	409	184
Held-to-maturity Securities, Unrealized Losses	(36)	(1,075)
Held-to-maturity Securities, Estimated Fair Value	60,322	61,135
Available-for-sale Securities, Amortized Cost	70,406	98,765
Available-for-sale Securities, Unrealized Gains	59
Available-for-sale Securities, Unrealized Losses	(534)	(2,122)
Available-for-sale, Estimated Fair Value	69,931	96,643
US Government Agency Obligations [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	8,886	8,749
Held-to-maturity Securities, Unrealized Gains	33	41
Held-to-maturity Securities, Estimated Fair Value	8,919	8,790
Available-for-sale Securities, Amortized Cost	24,189	48,082
Available-for-sale Securities, Unrealized Gains	15
Available-for-sale Securities, Unrealized Losses	(24)	(359)
Available-for-sale, Estimated Fair Value	24,180	47,723
Government Sponsored Entities (GSE) Mortgage-Backed Securities [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	341	389
Held-to-maturity Securities, Unrealized Gains	7
Held-to-maturity Securities, Estimated Fair Value	348	389
Available-for-sale Securities, Amortized Cost	26,256	27,563
Available-for-sale Securities, Unrealized Gains	23
Available-for-sale Securities, Unrealized Losses	(306)	(1,005)
Available-for-sale, Estimated Fair Value	25,973	26,558
Corporate Bonds [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	13,728	13,851
Held-to-maturity Securities, Unrealized Gains	245	124
Held-to-maturity Securities, Unrealized Losses		(47)
Held-to-maturity Securities, Estimated Fair Value	13,973	13,928
Available-for-sale Securities, Amortized Cost	8,796	10,890
Available-for-sale Securities, Unrealized Gains	13
Available-for-sale Securities, Unrealized Losses	(7)	(186)
Available-for-sale, Estimated Fair Value	8,802	10,704
Collateralized Mortgage Obligations GSE [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	1,044	1,159
Held-to-maturity Securities, Unrealized Gains	2
Held-to-maturity Securities, Unrealized Losses	(4)	(27)
Held-to-maturity Securities, Estimated Fair Value	1,042	1,132
Available-for-sale Securities, Amortized Cost	9,464	10,249
Available-for-sale Securities, Unrealized Gains	8
Available-for-sale Securities, Unrealized Losses	(177)	(441)
Available-for-sale, Estimated Fair Value	9,295	9,808
State and Municipal Taxable [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	362	362
Held-to-maturity Securities, Unrealized Gains	5
Held-to-maturity Securities, Unrealized Losses		(3)
Held-to-maturity Securities, Estimated Fair Value	367	359
State and Municipal Tax-Exempt [Member]
Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	35,588	37,516
Held-to-maturity Securities, Unrealized Gains	117	19
Held-to-maturity Securities, Unrealized Losses	(32)	(998)
Held-to-maturity Securities, Estimated Fair Value	35,673	36,537
Available-for-sale Securities, Amortized Cost	1,701	1,981
Available-for-sale Securities, Unrealized Losses	(20)	(131)
Available-for-sale, Estimated Fair Value	$ 1,681	$ 1,850

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