Securities (Schedule Of Amortized Cost Gross Unrealized Gains and Losses, and Fair Values of Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Schedule of Investments [Line Items]
Available for Sale, Gross Unrealized Gains	$ 0
Available for Sale, Gross Unrealized Losses	0	$ 0
Available for Sale, Fair Value	259,442	281,121
Pledged Financial Instruments, Not Separately Reported, Securities	219,244		$ 226,759
Total Debt Securities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	268,820	284,970
Available for Sale, Gross Unrealized Gains	480	1,568
Available for Sale, Gross Unrealized Losses	(9,858)	(5,417)
Available for Sale, Fair Value	259,442	281,121
US Treasury Securities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost		2,001
Available for Sale, Gross Unrealized Losses		(3)
Available for Sale, Fair Value		1,998
States and Political Subdivisions [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	104,115	120,000
Available for Sale, Gross Unrealized Gains	477	1,535
Available for Sale, Gross Unrealized Losses	(2,620)	(1,057)
Available for Sale, Fair Value	101,972	120,478
Corporate Obligations [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	8,980	10,068
Available for Sale, Gross Unrealized Gains	0	16
Available for Sale, Gross Unrealized Losses	(270)	(95)
Available for Sale, Fair Value	8,710	9,989
Mortgage-backed Securities-Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	155,725	152,901
Available for Sale, Gross Unrealized Gains	3	17
Available for Sale, Gross Unrealized Losses	(6,968)	(4,262)
Available for Sale, Fair Value	$ 148,760	$ 148,656

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Publisher FASB
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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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