Loans And Allowance For Loan Losses (Schedule Of Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	$ 3,813	$ 3,209
Impaired loans, with related allowance, Recorded Investment	2,321	2,849
Impaired loans, Recorded Investment	6,134	6,058
Impaired loans, with no related allowance, Unpaid Principal Balance	5,768	3,473
Impaired loans, with related allowance, Unpaid Principal Balance	2,579	4,774
Impaired loans, Unpaid Principal Balance, Total	8,347	8,247
Impaired loans, Related Allowance	964	270
Impaired loans, with no related allowance, Average Recorded Investment	4,272	3,830	5,092
Impaired loans, with related allowance, Average Recorded Investment	960	1,967	3,172
Impaired loans, Average Recorded Investment, Total	5,232	5,797	8,264
Impaired loans, with no related allowance, Interest Recorded	98	104	159
Impaired loans, with related allowance, Interest Recorded	1
Impaired loans, Interest Recorded, Total	99	104	159
Commercial Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	1,606	1,949
Impaired loans, with related allowance, Recorded Investment	1,986	854
Impaired loans, with no related allowance, Unpaid Principal Balance	1,606	2,103
Impaired loans, with related allowance, Unpaid Principal Balance	2,014	854
Impaired loans, Related Allowance	776	100
Impaired loans, with no related allowance, Average Recorded Investment	1,589	2,387	3,391
Impaired loans, with related allowance, Average Recorded Investment	572
Impaired loans, with no related allowance, Interest Recorded	66	74	146
Impaired loans, with related allowance, Interest Recorded
Commercial and Industrial Receivable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	309	660
Impaired loans, with related allowance, Recorded Investment	325	150
Impaired loans, with no related allowance, Unpaid Principal Balance	309	770
Impaired loans, with related allowance, Unpaid Principal Balance	555	150
Impaired loans, Related Allowance	187	150
Impaired loans, with no related allowance, Average Recorded Investment	537	689	813
Impaired loans, with related allowance, Average Recorded Investment	376
Impaired loans, with no related allowance, Interest Recorded	4	6	8
Impaired loans, with related allowance, Interest Recorded
Commercial Construction And Land Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	1,328	68
Impaired loans, with related allowance, Recorded Investment		1,845
Impaired loans, with no related allowance, Unpaid Principal Balance	3,253	68
Impaired loans, with related allowance, Unpaid Principal Balance		3,770
Impaired loans, Related Allowance		20
Impaired loans, with no related allowance, Average Recorded Investment
Impaired loans, with related allowance, Average Recorded Investment		1,967	3,172
Impaired loans, with no related allowance, Interest Recorded
Impaired loans, with related allowance, Interest Recorded
Agricultural and Other Loans to Farmers [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	181	56
Impaired loans, with no related allowance, Unpaid Principal Balance	181	56
Impaired loans, with no related allowance, Average Recorded Investment	162	270	604
Impaired loans, with related allowance, Average Recorded Investment
Impaired loans, with no related allowance, Interest Recorded	3
Impaired loans, with related allowance, Interest Recorded
Residential Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment	389	442
Impaired loans, with no related allowance, Unpaid Principal Balance	419	442
Impaired loans, with no related allowance, Average Recorded Investment	470	323	137
Impaired loans, with related allowance, Average Recorded Investment
Impaired loans, with no related allowance, Interest Recorded	25	21	5
Impaired loans, with related allowance, Interest Recorded
Home Equity Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment		21
Impaired loans, with no related allowance, Unpaid Principal Balance		21
Impaired loans, with no related allowance, Average Recorded Investment		17
Impaired loans, with related allowance, Average Recorded Investment
Impaired loans, with no related allowance, Interest Recorded		2
Impaired loans, with related allowance, Interest Recorded
Other Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans, with no related allowance, Recorded Investment		13
Impaired loans, with related allowance, Recorded Investment	10
Impaired loans, with no related allowance, Unpaid Principal Balance		13
Impaired loans, with related allowance, Unpaid Principal Balance	10
Impaired loans, Related Allowance	1
Impaired loans, with no related allowance, Average Recorded Investment		11
Impaired loans, with related allowance, Average Recorded Investment	12
Impaired loans, with no related allowance, Interest Recorded		1
Impaired loans, with related allowance, Interest Recorded	$ 1

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Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Topic 310

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