Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Abstract]
Due in one year or less, Amortized Cost	$ 35,137
Due from one to five years, Amortized Cost	83,090
Due from five to ten years, Amortized Cost	58,133
Due after ten years, Amortized Cost	218,519
Total Amortized Cost	394,879	$ 398,643
Due in one year or less, Estimated Fair Value	34,887
Due from one to five years, Estimated Fair Value	82,135
Due from five to ten years, Estimated Fair Value	56,755
Due after ten years, Estimated Fair Value	201,078
Total Estimated Fair Value	$ 374,855	$ 401,103	[1]

[1] Derived from audited consolidated financial statements