Investment Securities (Summary Of Securities With Gross Unrealized Losses And Their Fair Values) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012 security	Dec. 31, 2011 security
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale	41	28
Amortized cost of securities with unrealized losses, Available for Sale	$ 74,925	$ 28,980
Continuous Unrealized Loss Existing for, Less Than12 Months, Available for Sale	(513)	(148)
Continuous Unrealized Loss Existing for, More Than12 Months, Available for Sale	(15)
Fair value of securities with unrealized losses, Available for Sale	74,397	28,831
Federal Agency Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale	5	3
Amortized cost of securities with unrealized losses, Available for Sale	9,887	5,461
Continuous Unrealized Loss Existing for, Less Than12 Months, Available for Sale	(19)	(22)
Fair value of securities with unrealized losses, Available for Sale	9,868	5,439
Obligations Of State And Political Subdivisions [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale	9	3
Amortized cost of securities with unrealized losses, Available for Sale	10,457	3,853
Continuous Unrealized Loss Existing for, Less Than12 Months, Available for Sale	(83)	(19)
Fair value of securities with unrealized losses, Available for Sale	10,374	3,834
Residential Mortgage-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale	23	22
Amortized cost of securities with unrealized losses, Available for Sale	46,787	19,666
Continuous Unrealized Loss Existing for, Less Than12 Months, Available for Sale	(288)	(107)
Continuous Unrealized Loss Existing for, More Than12 Months, Available for Sale	(15)
Fair value of securities with unrealized losses, Available for Sale	46,484	19,558
Asset-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale	4
Amortized cost of securities with unrealized losses, Available for Sale	7,794
Continuous Unrealized Loss Existing for, Less Than12 Months, Available for Sale	(123)
Fair value of securities with unrealized losses, Available for Sale	$ 7,671