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Securities (Schedule Of Amortized Cost Gross Unrealized Gains and Losses, and Fair Values of Securities) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 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	265,862	281,121
Pledged Financial Instruments, Not Separately Reported, Securities	216,435		$ 230,852
Total Debt Securities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	274,343	284,970
Available for Sale, Gross Unrealized Gains	649	1,568
Available for Sale, Gross Unrealized Losses	(9,130)	(5,417)
Available for Sale, Fair Value	265,862	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	108,850	120,000
Available for Sale, Gross Unrealized Gains	628	1,535
Available for Sale, Gross Unrealized Losses	(2,587)	(1,057)
Available for Sale, Fair Value	106,891	120,478
Corporate Obligations [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	10,020	10,068
Available for Sale, Gross Unrealized Gains	0	16
Available for Sale, Gross Unrealized Losses	(253)	(95)
Available for Sale, Fair Value	9,767	9,989
Mortgage-backed Securities-Government Sponsored Entities [Member]
Schedule of Investments [Line Items]
Available for Sale, Amortized Cost	155,473	152,901
Available for Sale, Gross Unrealized Gains	21	17
Available for Sale, Gross Unrealized Losses	(6,290)	(4,262)
Available for Sale, Fair Value	$ 149,204	$ 148,656

X

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
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- Definition

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
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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
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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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
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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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