Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale and Held-to-maturity [Abstract]
Due in one year or less, Amortized Cost	$ 32,467
Due from one to five years, Amortized Cost	88,501
Due from five to ten years, Amortized Cost	78,187
Due after ten years, Amortized Cost	115,709
Total Amortized Cost	314,864	$ 272,215
Due in one year or less, Estimated Fair Value	32,616
Due from one to five years, Estimated Fair Value	89,412
Due from five to ten years, Estimated Fair Value	78,589
Due after ten years, Estimated Fair Value	121,922
Total Estimated Fair Value	322,539	276,355	[1]
Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	1,001
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	1,002
Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	0
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	0
Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	2,059
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	2,083
Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10	77,437
Debt Securities, Held-to-Maturity, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10	78,524
Debt Securities, Held-to-maturity	80,497	0
Debt Securities, Held-to-maturity, Fair Value	$ 81,609	$ 0

[1] Derived from audited consolidated financial statements