Investments (Gross Unrealized Losses And Fair Value Of Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	$ 85,745	$ 142,874
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss	351	867
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	13,915	42,660
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss	1,000	2,650
Securities available-for-sale, Total, Estimated Fair Value	99,660	185,534
Securities available-for-sale, Total, Unrealized Loss	1,351	3,517
Obligations Of States And Political Subdivisions [Member]
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	12,879	2,406
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss	79	5
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	0	128
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss	0	2
Securities available-for-sale, Total, Estimated Fair Value	12,879	2,534
Securities available-for-sale, Total, Unrealized Loss	79	7
U.S. Government Agencies Mortgage-backed Securities [Member]
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	70,593	129,612
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss	146	688
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	9,237	34,044
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss	156	1,333
Securities available-for-sale, Total, Estimated Fair Value	79,830	163,656
Securities available-for-sale, Total, Unrealized Loss	302	2,021
Corporate Securities [Member]
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	2,273	10,856
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss	126	174
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	0	2,231
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss	0	147
Securities available-for-sale, Total, Estimated Fair Value	2,273	13,087
Securities available-for-sale, Total, Unrealized Loss	126	321
Money Market Funds [Member]
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value		0
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss		0
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value		1,488
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss		13
Securities available-for-sale, Total, Estimated Fair Value		1,488
Securities available-for-sale, Total, Unrealized Loss		13
Trust Preferred Securities [Member]
Schedule of Investments [Line Items]
Securities available-for-sale, Less Than Twelve Months, Estimated Fair Value	0	0
Securities available-for-sale, Less Than Twelve Months, Unrealized Loss	0	0
Securities available-for-sale, Twelve Months or Greater, Estimated Fair Value	4,678	4,769
Securities available-for-sale, Twelve Months or Greater, Unrealized Loss	844	1,155
Securities available-for-sale, Total, Estimated Fair Value	4,678	4,769
Securities available-for-sale, Total, Unrealized Loss	$ 844	$ 1,155