Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Available for sale Securities, Amortized Cost, Due after 1 year but within 5 years	$ 19,983
Available for sale Securities, Amortized Cost, Due after 5 years but within 10 years	43,742
Available for sale Securities, Amortized Cost, Due after 10 years	5,293
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total	69,018
Available-for-sale debt securities, Amortized Cost	103,341	$ 116,027
Available for sale Securities, Fair Value, Due after 1 year but within 5 years	19,680
Available for sale Securities, Fair Value, Due after 5 years but within 10 years	42,912
Available for sale Securities, Fair Value, Due after 10 years	5,095
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total	67,687
Available for sale Securities, Fair Value	101,532	111,923
Held-to-maturity, Due in 1 year or less, Amortized Cost	3,992
Held-to-maturity, Due after 1 year through 5 years, Amortized Cost	14,475
Held-to-maturity, Due after 5 years through 10 years, Amortized Cost	81,452
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	99,919
Held-to-maturity debt securities, Amortized Cost	162,791	168,370
Held-to-maturity, Due in 1 year or less, Fair Value	3,970
Held-to-maturity, Due after 1 year through 5, Fair Value	14,486
Held-to-maturity, Due after 5 years through 10 years, Fair Value	82,852
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value	101,308
Held-to-maturity, Fair Value	163,723	$ 166,582
Mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Available for sale Securities without a Single Maturity Date, Amortized Cost	34,323
Available for sale securities without a Single Maturity Date, Fair Value	33,845
Held-to-maturity without Single Maturity Date, Amortized Cost	62,872
Held-to-maturity without Single Maturity Date, Fair Value	$ 62,415