Securities (Securities Available for Sale) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost of AFS Securities, Total	$ 144,304	$ 155,956
Fair Value of AFS Securities, Total	138,650	153,824
Gross Unrealized Gains on AFS Securities, Total	8	303
Gross Unrealized Losses on AFS Securities, Total	(5,662)	(2,435)
Obligations of U.S. Government Agencies and Corporations [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost of AFS Securities Maturing Within One Year	6,000	6,000
Amortized Cost of AFS Securities Maturing After One Year But Within Five Years	24,997	15,000
Amortized Cost of AFS Securities Maturing After Five Years But Within Ten Years	3,999	13,998
Amortized Cost of AFS Securities, Total	34,996	34,998
Fair Value of AFS Securities Maturing Within One Year	5,997	5,969
Fair Value of AFS Securities Maturing After One Year But Within Five Years	23,916	14,689
Fair Value of AFS Securities Maturing After Five Years But Within Ten Years	3,789	13,556
Fair Value of AFS Securities, Total	33,702	34,214
Gross Unrealized Losses on AFS Securities Maturing Within One Year	(3)	(31)
Gross Unrealized Losses on AFS Securities Maturing After One Year But Within Five Years	(1,081)	(311)
Gross Unrealized Losses on AFS Securities Maturing After Five Years But Within Ten Years	(210)	(442)
Gross Unrealized Losses on AFS Securities, Total	(1,294)	(784)
Obligations of State and Political Subdivisions [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost of AFS Securities Maturing Within One Year	1,053	2,521
Amortized Cost of AFS Securities Maturing After One Year But Within Five Years	14,250	13,959
Amortized Cost of AFS Securities Maturing After Five Years But Within Ten Years	4,648	8,611
Amortized Cost of AFS Securities, Total	19,951	25,091
Fair Value of AFS Securities Maturing Within One Year	1,051	2,516
Fair Value of AFS Securities Maturing After One Year But Within Five Years	14,016	13,955
Fair Value of AFS Securities Maturing After Five Years But Within Ten Years	4,448	8,510
Fair Value of AFS Securities, Total	19,515	24,981
Gross Unrealized Gains on AFS Securities Maturing After One Year But Within Five Years	6	50
Gross Unrealized Gains on AFS Securities Maturing After Five Years But Within Ten Years	2	18
Gross Unrealized Gains on AFS Securities, Total	8	68
Gross Unrealized Losses on AFS Securities Maturing Within One Year	(2)	(5)
Gross Unrealized Losses on AFS Securities Maturing After One Year But Within Five Years	(240)	(54)
Gross Unrealized Losses on AFS Securities Maturing After Five Years But Within Ten Years	(202)	(119)
Gross Unrealized Losses on AFS Securities, Total	(444)	(178)
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost of AFS Securities Without Single Maturity Date	89,357	94,945
Fair Value of AFS Securities Without Single Maturity Date	85,433	93,510
Gross Unrealized Gains on AFS Securities Without Single Maturity Date		38
Gross Unrealized Losses on AFS Securities Without Single Maturity Date	$ (3,924)	(1,473)
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost of AFS Securities Without Single Maturity Date		922
Fair Value of AFS Securities Without Single Maturity Date		1,119
Gross Unrealized Gains on AFS Securities Without Single Maturity Date		$ 197