Loans And Allowance For Loan Losses (Schedule Of Loans With Credit Quality Indicators) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 529,441	$ 506,842
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	497,064	474,116
Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	11,104	10,253
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 21,259	$ 22,472
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 14	$ 1
Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	393,519	371,002
Commercial Real Estate Mortgages [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	367,322	345,197
Commercial Real Estate Mortgages [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	8,919	7,381
Commercial Real Estate Mortgages [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 17,265	$ 18,424
Commercial Real Estate Mortgages [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Commercial Real Estate Mortgages [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 13
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	78,640	$ 79,911
Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	74,030	74,771
Commercial And Industrial [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	2,012	2,349
Commercial And Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 2,597	$ 2,790
Commercial And Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Commercial And Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 1	$ 1
Commercial Construction And Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	25,195	24,926
Commercial Construction And Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	24,084	23,460
Commercial Construction And Land Development [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan		355
Commercial Construction And Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 1,111	$ 1,111
Commercial Construction And Land Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Commercial Construction And Land Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Agriculture And Other Loans To Farmers [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 32,087	$ 31,003
Agriculture And Other Loans To Farmers [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	31,628	30,688
Agriculture And Other Loans To Farmers [Member] | Other Assets Especially Mentioned [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	173	168
Agriculture And Other Loans To Farmers [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan	$ 286	$ 147
Agriculture And Other Loans To Farmers [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan
Agriculture And Other Loans To Farmers [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Commercial loan