Investment Securities (Summary Of Interest Income On Available-For-Sale Investment Securities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	$ 2,223	$ 2,591
Total tax-exempt interest income	573	506
Total interest income	2,796	3,097
U.S Treasury And Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	941	1,637
U.S. Agency Mortgage-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	2	3
Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	1,280	951
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Total tax-exempt interest income	$ 573	$ 506