Securities (Summary Of Maturities, Amortized Cost And Estimated Fair Values Of Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Securities [Abstract]
Due in one year or less, Amortized Cost	$ 77,442
Due from one to five years, Amortized Cost	92,630
Due from five to ten years, Amortized Cost	13,905
Due after ten years, Amortized Cost	98,979
Equity securities, Amortized Cost	77
Total Amortized Cost	283,033
Due in one year or less, Estimated Fair Value	78,853
Due from one to five years, Estimated Fair Value	94,923
Due from five to ten years, Estimated Fair Value	14,539
Due after ten years, Estimated Fair Value	103,600
Equity securities, Estimated Fair Value	77
Total Estimated Fair Value	$ 291,992