Investment Securities (Summary Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	$ 237,246	$ 201,593
Available-for-sale Securities, Gross Unrealized Gains	1,529	2,384
Available-for-sale Securities, Gross Unrealized Losses	287	59
Available-for-sale Securities, Fair Value	238,488	203,918
U.S Treasury And Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	158,029	123,959
Available-for-sale Securities, Gross Unrealized Gains	168	455
Available-for-sale Securities, Gross Unrealized Losses	189
Available-for-sale Securities, Fair Value	158,008	124,414
Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	20,031	21,124
Available-for-sale Securities, Gross Unrealized Gains	351	613
Available-for-sale Securities, Gross Unrealized Losses	63	9
Available-for-sale Securities, Fair Value	20,319	21,728
U.S Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	26	35
Available-for-sale Securities, Gross Unrealized Gains	1	1
Available-for-sale Securities, Fair Value	27	36
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	56,161	52,951
Available-for-sale Securities, Gross Unrealized Gains	987	1,081
Available-for-sale Securities, Gross Unrealized Losses	18	50
Available-for-sale Securities, Fair Value	57,130	53,982
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost	2,999	3,524
Available-for-sale Securities, Gross Unrealized Gains	22	234
Available-for-sale Securities, Gross Unrealized Losses	17
Available-for-sale Securities, Fair Value	$ 3,004	$ 3,758