Summary Of Significant Accounting And Reporting Policies (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Oct. 18, 2022 $ / shares	Dec. 31, 2022 USD ($) branch $ / shares	Dec. 31, 2021 USD ($) $ / shares
Condensed Financial Statements, Captions [Line Items]
Number of Reportable Segments		1
Common stock, par value (in dollars per share) | $ / shares	$ 2.50	$ 2.50	$ 2.50
DiscontinuationofInterestThresholdDays		90 days
Financing Receivable, Threshold Period Past Due		30 days
Threshold period past due for write-off of financing receivable		120 days
Other real estate, foreclosed assets, and repossessed assets		$ 900	$ 1,300
Amortization Method Qualified Affordable Housing Project Investments		42,100	28,600
Qualified Affordable Housing Project Investments, Commitment		$ 30,900	$ 18,900
Citizens Commerce Bancshares, Inc.
Condensed Financial Statements, Captions [Line Items]
Business acquisition, shares issuable, share ratio	0.1666
City National
Condensed Financial Statements, Captions [Line Items]
Number of offices | branch		94