Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost, Due in 1 year or less	$ 7,982
Available-for-sale Securities, Amortized Cost, Due in 1 year or less	7,599
Available-for-sale Securities, Amortized Cost, Due after 10 years	8,144
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total	23,725
Available-for-sale debt securities, Amortized Cost	27,396	$ 37,170
Available-for-sale Securities, Fair Value, Due after 1 year but within 5 years	8,012
Available-for-sale Securities, Fair Value, Due after 5 years but within 10 years	7,598
Available-for-sale Securities, Fair Value, Due after 10 years	8,148
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total	23,758
Available-for-sale debt securities, Fair Value	27,420	37,009
Held-to-maturity, Due in 1 year or less, Amortized Cost	5,907
Held-to-maturity, Due after 1 year through 5 years, Amortized Cost	15,378
Held-to-maturity, Due after 5 years through 10 years, Amortized Cost	96,184
Held-to-maturity, Due after 10 years, Amortized Cost	5,554
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	123,023
Held-to-maturity debt securities, Amortized Cost	167,963	136,477
Held-to-maturity, Due in 1 year or less, Fair Value	5,953
Held-to-maturity, Due after 1 year through 5, Fair Value	15,751
Held-to-maturity, Due after 5 years through 10 years, Fair Value	97,347
Held-to-maturity, Due after 10 years, Fair Value	5,516
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value	124,567
Held-to-maturity, Fair Value	170,399	$ 137,476
Mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities without a Single Maturity Date, Amortized Cost	3,671
Available-for-sale securities without a Single Maturity Date, Fair Value	3,662
Held-to-maturity without Single Maturity Date, Amortized Cost	44,940
Held-to-maturity without Single Maturity Date, Fair Value	$ 45,832