Investment Securities (Schedule Of Fair Value And Gross Unrealized Losses On Investment Securities In A Continuous Unrealized Loss Position) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013 item	Dec. 31, 2012 item
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 Months	$ 19,674	$ 10,422
Fair Value, 12 Months or More	682
Fair Value, Total	20,356	10,422
Unrealized Losses, Less than 12 Months	110	67
Unrealized Losses, 12 Months or More	2
Unrealized Losses, Total	112	67
Number of available-for-sale investments in loss position	24	10
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 Months	2,573	2,931
Fair Value, 12 Months or More	682
Fair Value, Total	3,255	2,931
Unrealized Losses, Less than 12 Months	4	13
Unrealized Losses, 12 Months or More	2
Unrealized Losses, Total	6	13
Mortgage Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value, Less than 12 Months	17,101	7,491
Fair Value, 12 Months or More
Fair Value, Total	17,101	7,491
Unrealized Losses, Less than 12 Months	106	54
Unrealized Losses, 12 Months or More
Unrealized Losses, Total	$ 106	$ 54