Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Abstract]
Due in one year or less, Amortized Cost	$ 35,994
Due from one to five years, Amortized Cost	82,985
Due from five to ten years, Amortized Cost	61,419
Due after ten years, Amortized Cost	218,245
Total Amortized Cost	398,643	$ 277,157
Due in one year or less, Estimated Fair Value	36,145
Due from one to five years, Estimated Fair Value	84,082
Due from five to ten years, Estimated Fair Value	61,702
Due after ten years, Estimated Fair Value	219,174
Total Estimated Fair Value	$ 401,103	$ 286,127