Investment Securities (Amortized Cost and Estimated Fair Value by Maturity Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investment Securities [Abstract]
Available for sale, Amortized Cost, Due in one year or less	$ 9,002
Available for sale, Amortized Cost, Due after one year through five years	1,916
Available for sale, Amortized Cost, Due after five years through ten years	42,964
Available for sale, Amortized Cost, Due after ten years	29,379
Available-for-sale securities, Amortized Cost	83,261	$ 122,492
Available for sale, Estimated Fair Value, Due in one year or less	9,080
Available for sale, Estimated Fair Value, Due after one year through five years	1,977
Available for sale, Estimated Fair Value, Due after five years through ten years	44,744
Available for sale, Estimated Fair Value, Due after ten years	30,219
Available-for-sale Securities, Debt Securities, Total	86,020	122,791
Held to maturity securities, Amortized Cost, Due after one year through five years	400
Held to maturity securities, Amortized Cost, Due after five years through ten years	10,018
Held to maturity securities, Amortized Cost, Due after ten years	1,292
Held-to-maturity Securities, Amortized Cost	11,710	8,786
Held to maturity securities, Estimated Fair Value, Due after one year through five years	401
Held to maturity securities, Estimated Fair Value, Due after five years through ten years	9,987
Held to maturity securities, Estimated Fair Value, Due after ten years	1,327
Held-to-maturity Securities, Fair Value, Total	$ 11,715	$ 8,654