Securities - Schedule Of Marketable Securities By Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Available for sale at fair value:
Within one year, Amount	$ 1,950
After one through five years, Amount	8,793
After five through ten years, Amount	22,174
After ten years, Amount	31,358
Securities available for sale	$ 64,275	$ 46,713
Within one year, Yield	1.96%
After one through five years, Yield	2.65%
After five through ten years, Yield	4.36%
After ten years, Yield	3.13%
Total carrying value, Yield	3.46%
Equity securities at fair value:
Within one year, Amount	$ 0
After one through five years, Amount	0
After five through ten years, Amount	0
After ten years, Amount	2,289
Estimated fair value	$ 2,289	2,144
Within one year, Yield	0.00%
After one through five years, Yield	0.00%
After five through ten years, Yield	0.00%
After ten years, Yield	2.21%
Total carrying value, Yield	2.21%
U.S. Government sponsored entities
Available for sale at fair value:
Within one year, Amount	$ 1,752
After one through five years, Amount	4,001
After five through ten years, Amount	0
After ten years, Amount	0
Securities available for sale	$ 5,753	5,642
Within one year, Yield	1.75%
After one through five years, Yield	1.83%
After five through ten years, Yield	0.00%
After ten years, Yield	0.00%
Total carrying value, Yield	1.81%
State and political subdivisions
Available for sale at fair value:
Within one year, Amount	$ 195
After one through five years, Amount	601
After five through ten years, Amount	3,345
After ten years, Amount	1,013
Securities available for sale	$ 5,154	4,498
Within one year, Yield	3.80%
After one through five years, Yield	3.92%
After five through ten years, Yield	3.41%
After ten years, Yield	2.74%
Total carrying value, Yield	3.35%
Residential mortgage-backed securities
Available for sale at fair value:
Within one year, Amount	$ 3
After one through five years, Amount	375
After five through ten years, Amount	2,475
After ten years, Amount	25,111
Securities available for sale	$ 27,964	26,613
Within one year, Yield	4.79%
After one through five years, Yield	2.33%
After five through ten years, Yield	2.47%
After ten years, Yield	2.75%
Total carrying value, Yield	2.72%
Corporate and other securities
Available for sale at fair value:
Within one year, Amount	$ 0
After one through five years, Amount	3,816
After five through ten years, Amount	16,354
After ten years, Amount	5,234
Securities available for sale	$ 25,404	$ 9,960
Within one year, Yield	0.00%
After one through five years, Yield	3.34%
After five through ten years, Yield	4.84%
After ten years, Yield	5.07%
Total carrying value, Yield	4.66%