Investment Securities (Schedule Of Amortized Cost And Fair Value By Contractual Maturity Of Available-For-Sale Securities) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	$ 219,204	$ 201,593
U.S Treasury And Government Sponsored Entities [Member]
Schedule of Available-for-sale Securities [Line Items]
Within 1 year, Amortized Cost	59,466
1-5 years, Amortized Cost	79,689
Total securities available for sale, Amortized Cost	139,155	123,959
Within 1 year, Fair Value	59,782
1-5 years, Fair Value	79,783
Total securities available for sale, Fair Value	139,565
Within 1 year, Weighted Average Yield	0.80%
1-5 years, Weighted Average Yield	0.49%
Weighted Average Yield, Total	0.62%
U.S Agency Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
5-10 years, Amortized Cost	33
Total securities available for sale, Amortized Cost	33	35
5-10 years, Fair Value	34
Total securities available for sale, Fair Value	34
5-10 years, Weighted Average Yield	4.45%
Weighted Average Yield, Total	4.45%
Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Within 1 year, Amortized Cost	5,173
1-5 years, Amortized Cost	50,716
Total securities available for sale, Amortized Cost	55,889	52,951
Within 1 year, Fair Value	5,209
1-5 years, Fair Value	51,872
Total securities available for sale, Fair Value	57,081
Within 1 year, Weighted Average Yield	1.25%
1-5 years, Weighted Average Yield	2.16%
Weighted Average Yield, Total	2.07%
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Over 10 years, Amortized Cost	2,501
Total securities available for sale, Amortized Cost	2,501	3,524
Over 10 years, Fair Value	2,629
Total securities available for sale, Fair Value	$ 2,629
Over 10 years, Weighted Average Yield	5.19%
Weighted Average Yield, Total	5.19%