Investment Securities (Schedule Of Unrealized Loss On Securities) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Jun. 30, 2012 Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]	Dec. 31, 2011 Other Equity Securities [Member]	Dec. 31, 2011 U.S. Government Sponsored Entities Asset-Backed Securities [Member]
Schedule of Investments [Line Items]
Securities Available-for-Sale, Less than 12 months, Fair value	$ 89,808	$ 89,808
Securities Available-for-Sale, Less than 12 months, Unrealized losses	192	192
Securities Available-for-Sale, 12 months or longer, Fair value			80
Securities Available-for-Sale, 12 months or longer, Unrealized losses			32
Securities Available-for-Sale, Fair value, Total	89,808	89,808	80
Securities Available-for-Sale, Unrealized losses, Total	192	192	32
Securities Held-to-Maturity, Less than 12 months, Fair value
Securities Held-to-Maturity, Less than 12 months, Unrealized losses
Securities Held-to-Maturity, 12 months or longer, Fair value				38,775
Securities Held-to-Maturity, 12 months or longer, Unrealized losses				32
Securities Held-to-Maturity, Fair value, Total				38,775
Securities Held-to-Maturity, Unrealized losses, Total				$ 32