Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Available-for-sale Securities [Abstract]
Due in one year or less, Amortized Cost	$ 63,900
Due from one to five years, Amortized Cost	98,613
Due from five to ten years, Amortized Cost	24,470
Due after ten years, Amortized Cost	88,214
Equity securities, Amortized Cost	7
Total Amortized Cost	275,204	276,631	279,511
Due in one year or less, Estimated Fair Value	65,018
Due from one to five years, Estimated Fair Value	100,486
Due from five to ten years, Estimated Fair Value	25,230
Due after ten years, Estimated Fair Value	91,394
Equity securities, Estimated Fair Value	7
Total Estimated Fair Value	$ 282,135