Investment Securities (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($)
Proceeds from sale and maturity of marketable securities | $	$ 0	$ 0
Gain on sale of investments | $	$ 0	0
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	33
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	3
Maximum [Member]
Loss on sale of investments | $	$ 1	$ 0
Mortgage-backed [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	26
U.S. Government Agencies [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions	7
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1
Other Debt Securities [Member]
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	2