Loans And Allowance for Credit Losses (Collateral-Dependent Loans) (Details) - Commercial Portfolio Segment [Member] - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Credit Quality Indicator [Line Items]
Total	$ 3,106	$ 4,602
Business
Credit Quality Indicator [Line Items]
Business	3,106	4,602
Business Assets
Credit Quality Indicator [Line Items]
Total	1,598	2,778
Business Assets | Business
Credit Quality Indicator [Line Items]
Business	1,598	2,778
Oil & Gas Assets
Credit Quality Indicator [Line Items]
Total	1,508	1,824
Oil & Gas Assets | Business
Credit Quality Indicator [Line Items]
Business	$ 1,508	$ 1,824