Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Securities [Abstract]
Due in one year or less, Amortized Cost	$ 67,188
Due from one to five years, Amortized Cost	79,684
Due from five to ten years, Amortized Cost	14,775
Due after ten years, Amortized Cost	111,960
Equity securities, Amortized Cost	77
Total Amortized Cost	273,684
Due in one year or less, Estimated Fair Value	68,371
Due from one to five years, Estimated Fair Value	81,509
Due from five to ten years, Estimated Fair Value	15,146
Due after ten years, Estimated Fair Value	116,436
Equity securities, Estimated Fair Value	77
Total Estimated Fair Value	$ 281,539