Securities (Schedule Of Gross Unrealized Losses And Fair Value, Aggregated By Investment Category And Length Of Time) (Details) $ in Thousands	Sep. 30, 2016 USD ($) security	Dec. 31, 2015 USD ($) security
Schedule of Available-for-sale Securities [Line Items]
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Number of Securities | security	16	41
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Fair Value	$ 20,823	$ 47,677
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Unrealized Losses	$ (84)	$ (323)
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Number of Securities | security	1	4
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Fair Value	$ 503	$ 1,886
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Unrealized Losses	$ (3)	$ (9)
Total temporarily impaired debt securities, available-for-sale, Total, Number of Securities | security	17	45
Total temporarily impaired debt securities, available-for-sale, Total, Fair Value	$ 21,326	$ 49,563
Total temporarily impaired debt securities, available-for-sale, Total, Unrealized Losses	$ (87)	$ (332)
U.S. Treasury Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Number of Securities | security	1
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Fair Value	$ 4,952
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Unrealized Losses	$ (48)
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Number of Securities | security	0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Fair Value	$ 0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Unrealized Losses	$ 0
Total temporarily impaired debt securities, available-for-sale, Total, Number of Securities | security	1
Total temporarily impaired debt securities, available-for-sale, Total, Fair Value	$ 4,952
Total temporarily impaired debt securities, available-for-sale, Total, Unrealized Losses	$ (48)
U.S. Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Number of Securities | security	2	6
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Fair Value	$ 9,968	$ 17,414
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Unrealized Losses	$ (32)	$ (140)
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Number of Securities | security	0	0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Fair Value	$ 0	$ 0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Unrealized Losses	$ 0	$ 0
Total temporarily impaired debt securities, available-for-sale, Total, Number of Securities | security	2	6
Total temporarily impaired debt securities, available-for-sale, Total, Fair Value	$ 9,968	$ 17,414
Total temporarily impaired debt securities, available-for-sale, Total, Unrealized Losses	$ (32)	$ (140)
U.S. Agency Mortgage-Backed, Residential [Member]
Schedule of Available-for-sale Securities [Line Items]
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Number of Securities | security		8
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Fair Value		$ 18,991
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Unrealized Losses		$ (157)
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Number of Securities | security		0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Fair Value		$ 0
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Unrealized Losses		$ 0
Total temporarily impaired debt securities, available-for-sale, Total, Number of Securities | security		8
Total temporarily impaired debt securities, available-for-sale, Total, Fair Value		$ 18,991
Total temporarily impaired debt securities, available-for-sale, Total, Unrealized Losses		$ (157)
State And Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Number of Securities | security	13	27
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Fair Value	$ 5,903	$ 11,272
Total temporarily impaired debt securities, available-for-sale, Less than 12 months, Unrealized Losses	$ (4)	$ (26)
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Number of Securities | security	1	4
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Fair Value	$ 503	$ 1,886
Total temporarily impaired debt securities, available-for-sale, 12 months or more, Unrealized Losses	$ (3)	$ (9)
Total temporarily impaired debt securities, available-for-sale, Total, Number of Securities | security	14	31
Total temporarily impaired debt securities, available-for-sale, Total, Fair Value	$ 6,406	$ 13,158
Total temporarily impaired debt securities, available-for-sale, Total, Unrealized Losses	$ (7)	$ (35)