Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale [Abstract]
Due in one year or less, Amortized Cost	$ 37,382
Due from one to five years, Amortized Cost	86,225
Due from five to ten years, Amortized Cost	86,879
Due after ten years, Amortized Cost	128,443
Total Amortized Cost	338,929	$ 277,157
Due in one year or less, Estimated Fair Value	37,845
Due from one to five years, Estimated Fair Value	87,983
Due from five to ten years, Estimated Fair Value	87,616
Due after ten years, Estimated Fair Value	132,298
Total Estimated Fair Value	$ 345,742	$ 286,127	[1]

[1] Derived from audited consolidated financial statements