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Loans And Allowance For Loan Losses (Summary Of Troubled Debt Restructures) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	5	3	10	7
Pre-Modification Outstanding Recorded Investment	$ 996	$ 214	$ 1,451	$ 1,499
Post-Modification Outstanding Recorded Investment	$ 975	$ 226	$ 1,410	$ 1,508
Commercial Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2	3	5	3
Pre-Modification Outstanding Recorded Investment	$ 936	$ 214	$ 1,361	$ 214
Post-Modification Outstanding Recorded Investment	$ 915	$ 226	$ 1,326	$ 226
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	2		2
Pre-Modification Outstanding Recorded Investment	$ 51		$ 51
Post-Modification Outstanding Recorded Investment	$ 51		$ 51
Agriculture And Other Loans To Farmers [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan			2	1
Pre-Modification Outstanding Recorded Investment			$ 30	$ 18
Post-Modification Outstanding Recorded Investment			$ 24	$ 16
Commercial Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	4	3	9	4
Pre-Modification Outstanding Recorded Investment	$ 987	$ 214	$ 1,442	$ 232
Post-Modification Outstanding Recorded Investment	$ 966	$ 226	$ 1,401	$ 242
Residential Real Estate Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan				3
Pre-Modification Outstanding Recorded Investment				$ 1,267
Post-Modification Outstanding Recorded Investment				$ 1,266
Other Consumer Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	1		1
Pre-Modification Outstanding Recorded Investment	$ 9		$ 9
Post-Modification Outstanding Recorded Investment	$ 9		$ 9
Consumer Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	1		1	3
Pre-Modification Outstanding Recorded Investment	$ 9		$ 9	$ 1,267
Post-Modification Outstanding Recorded Investment	$ 9		$ 9	$ 1,266

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524

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