Loans And Allowance for Credit Losses (Collateral-Dependent Loans) (Details) - Commercial Portfolio Segment [Member] - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Credit Quality Indicator [Line Items]
Total	$ 3,659	$ 4,063
Business
Credit Quality Indicator [Line Items]
Business	3,659	4,063
Business Assets
Credit Quality Indicator [Line Items]
Total	1,465	1,604
Business Assets | Business
Credit Quality Indicator [Line Items]
Business	1,465	1,604
Oil & Gas Assets
Credit Quality Indicator [Line Items]
Total	2,194	2,459
Oil & Gas Assets | Business
Credit Quality Indicator [Line Items]
Business	$ 2,194	$ 2,459