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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Schedule of Investments [Line Items]    
Available for Sale Securities, Amortized Cost, Due in 1 year or less $ 4,047  
Available for Sale Securities, Amortized Cost, Due after 1 year but within 5 years 8,399  
Available for Sale Securities, Amortized Cost, Due after 5 years but within 10 years 11,728  
Available for Sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total 24,174  
Available-for-sale debt securities, Amortized Cost 37,170 $ 116,027
Available for Sale Securities, Fair Value, Due in 1 year or less 4,032  
Available for Sale Securities, Fair Value, Due after 1 year but within 5 years 8,385  
Available for Sale Securities, Fair Value, Due after 5 years but within 10 years 11,702  
Available for Sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total 24,119  
Available for Sale Securities, Fair Value 37,009 111,923
Held to Maturity, Due in 1 year or less, Amortized Cost 3,994  
Held to Maturity, Due after 1 year through 5 years, Amortized Cost 16,423  
Held to Maturity, Due after 5 years through 10 years, Amortized Cost 73,962  
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis 94,379  
Held-to-maturity debt securities, Amortized Cost 136,477 168,370
Held to Maturity, Due in 1 year or less, Fair Value 3,999  
Held to Maturity, Due after 1 year through 5, Fair Value 16,637  
Held to Maturity, Due after 5 years through 10 years, Fair Value 74,749  
Held to Maturity Securities, Debt Maturities, Single Maturity Date, Fair Value 95,385  
Held to Maturity, Fair Value 137,476 $ 166,582
Mortgage-backed securities [Member]    
Schedule of Investments [Line Items]    
Available for Sale Securities without a Single Maturity Date, Amortized Cost 12,996  
Available for Sale Securities without a Single Maturity Date, Fair Value 12,890  
Held to Maturity without Single Maturity Date, Amortized Cost 42,098  
Held to Maturity without Single Maturity Date, Fair Value $ 42,091