Securities (Summary Of Securities Available For Sale In Unrealized Loss Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	$ 93,877	$ 49,087
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,596)	(600)
12 months or more, Estimated Fair Value	9,395	32,701
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(139)	(367)
Total Estimated Fair Value	103,272	81,788
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,735)	(967)
Temporarily Impaired Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	93,877	49,087
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,596)	(600)
12 months or more, Estimated Fair Value	9,395	32,701
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(139)	(367)
Total Estimated Fair Value	103,272	81,788
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,735)	(967)
Temporarily Impaired Securities [Member] | U S Government Corporations And Agencies Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	247	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
12 months or more, Estimated Fair Value	3,489	3,912
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(40)	(52)
Total Estimated Fair Value	3,736	3,912
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(40)	(52)
Temporarily Impaired Securities [Member] | Government Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	42,805	36,825
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(638)	(535)
12 months or more, Estimated Fair Value	5,906	21,915
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(99)	(238)
Total Estimated Fair Value	48,711	58,740
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(737)	(773)
Temporarily Impaired Securities [Member] | Nongovernment Sponsored Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	6,278	5,488
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(34)	(44)
12 months or more, Estimated Fair Value	0	2,163
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(4)
Total Estimated Fair Value	6,278	7,651
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(34)	(48)
Temporarily Impaired Securities [Member] | State and Political Subdivisions Lottery/Casino Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	1,181
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(37)
12 months or more, Estimated Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Total Estimated Fair Value	1,181
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(37)
Temporarily Impaired Securities [Member] | Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	8,003
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(90)
12 months or more, Estimated Fair Value	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0
Total Estimated Fair Value	8,003
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(90)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions General Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	25,066	3,708
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(586)	(8)
12 months or more, Estimated Fair Value	0	438
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(4)
Total Estimated Fair Value	25,066	4,146
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(586)	(12)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions Water and Sewer Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	3,463	721
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(33)	(3)
12 months or more, Estimated Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Total Estimated Fair Value	3,463	721
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(33)	(3)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions Special Tax Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	2,541
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (72)
12 months or more, Estimated Fair Value
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Total Estimated Fair Value	$ 2,541
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(72)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions Lottery/casino Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	1,781	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(74)	0
12 months or more, Estimated Fair Value	0	1,126
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(9)
Total Estimated Fair Value	1,781	1,126
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(74)	(9)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions Other Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	2,512	1,247
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(32)	(8)
12 months or more, Estimated Fair Value	0	846
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	(10)
Total Estimated Fair Value	2,512	2,093
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(32)	(18)
Temporarily Impaired Securities [Member] | State and Political Subdivisions General Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		0
12 months or more, Estimated Fair Value		316
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(33)
Total Estimated Fair Value		316
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(33)
Temporarily Impaired Securities [Member] | State and Political Subdivisions Water and Sewer Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		0
12 months or more, Estimated Fair Value		817
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(7)
Total Estimated Fair Value		817
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(7)
Temporarily Impaired Securities [Member] | State and Political Subdivisions Other Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value		1,098
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(2)
12 months or more, Estimated Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		0
Total Estimated Fair Value		1,098
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(2)
Temporarily Impaired Securities [Member] | Tax Exempt State and Political Subdivisions Lease Revenues [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value		0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		0
12 months or more, Estimated Fair Value		1,168
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		(10)
Total Estimated Fair Value		1,168
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		(10)
Other Than Temporarily Impaired Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, Estimated Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
12 months or more, Estimated Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	0	0
Total Estimated Fair Value	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ 0	$ 0