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Security Types (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	$ 14,468	$ 14,437
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	23,456	23,547
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	32,635	32,963
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	170,728	168,854
Available-for-sale Securities, Fair Value, Total	241,287	239,801
Available For Sale Securities, Gross Unrealized Gains	1,301	608
Available For Sale Securities, Gross Unrealized Losses	3,132	5,630
Available-for-sale Securities, Amortized Cost Basis	243,118	244,823
US Government and Government Agencies and Authorities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	14,468	14,437
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	21,862	19,865
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	14,645	16,869
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	0	0
Available-for-sale Securities, Fair Value, Total	50,975	51,171
Available For Sale Securities, Gross Unrealized Gains	21	25
Available For Sale Securities, Gross Unrealized Losses	763	1,200
Available-for-sale Securities, Amortized Cost Basis	51,717	52,346
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	11,222	8,368
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	109,782	110,230
Available-for-sale Securities, Fair Value, Total	121,004	118,598
Available For Sale Securities, Gross Unrealized Gains	162	65
Available For Sale Securities, Gross Unrealized Losses	2,143	3,738
Available-for-sale Securities, Amortized Cost Basis	122,985	122,271
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value	0	0
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value	1,594	3,682
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value	6,768	7,726
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	60,946	58,624
Available-for-sale Securities, Fair Value, Total	69,308	70,032
Available For Sale Securities, Gross Unrealized Gains	1,118	518
Available For Sale Securities, Gross Unrealized Losses	226	692
Available-for-sale Securities, Amortized Cost Basis	$ 68,416	$ 70,206

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