Loans And Allowance For Loan Losses (Schedule Of Allowance For Loan Losses By Portfolio Segment) (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]
Balance at beginning of period	$ 8,475	$ 8,097	$ 8,221
Charged offs	(1,620)	(1,255)	(2,034)
Recoveries	281	215	258
Provision	1,833	1,418	1,652
Balance at end of period	8,969	8,475	8,097
Allowance: Amount for loans individually evaluated for impairment	964	270	120
Allowance: Amount for loans collectively evaluated for impairment	8,005	8,205	7,977
Loans individually evaluated for impairment	6,134	4,808	5,729
Loans collectively evaluated for impairment	912,906	848,322	809,830
Commercial Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	4,825	4,320	3,900
Charged offs	(238)	(214)	(474)
Recoveries	85	105	9
Provision	(204)	614	885
Balance at end of period	4,468	4,825	4,320
Allowance: Amount for loans individually evaluated for impairment	776	100
Allowance: Amount for loans collectively evaluated for impairment	3,692	4,725	4,320
Loans individually evaluated for impairment	3,592	2,046	1,888
Loans collectively evaluated for impairment	322,357	334,496	322,605
Commercial and Industrial Receivable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,266	1,026	1,321
Charged offs	(475)	(405)	(102)
Recoveries	16	23	25
Provision	122	622	(218)
Balance at end of period	929	1,266	1,026
Allowance: Amount for loans individually evaluated for impairment	187	150
Allowance: Amount for loans collectively evaluated for impairment	742	1,116	1,026
Loans individually evaluated for impairment	634	793	818
Loans collectively evaluated for impairment	73,259	73,179	58,555
Commercial Construction And Land Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	314	515	594
Charged offs			(344)
Provision	(169)	(201)	265
Balance at end of period	145	314	515
Allowance: Amount for loans individually evaluated for impairment		20	120
Allowance: Amount for loans collectively evaluated for impairment	145	294	395
Loans individually evaluated for impairment	1,328	1,913	2,359
Loans collectively evaluated for impairment	24,093	16,216	19,761
Agricultural and Other Loans to Farmers [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	335	303	332
Charged offs	(14)	(81)	(160)
Recoveries	130	37	82
Provision	(174)	76	49
Balance at end of period	277	335	303
Allowance: Amount for loans collectively evaluated for impairment	277	335	303
Loans individually evaluated for impairment	181	56	664
Loans collectively evaluated for impairment	30,290	26,873	24,258
Residential Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,166	1,330	1,436
Charged offs	(650)	(406)	(568)
Recoveries	12	7	104
Provision	2,186	235	358
Balance at end of period	2,714	1,166	1,330
Allowance: Amount for loans collectively evaluated for impairment	2,714	1,166	1,330
Loans individually evaluated for impairment	389
Loans collectively evaluated for impairment	382,289	317,115	297,103
Other Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	137	207	286
Charged offs	(191)	(120)	(294)
Recoveries	37	23	38
Provision	111	27	177
Balance at end of period	94	137	207
Allowance: Amount for loans individually evaluated for impairment	1
Allowance: Amount for loans collectively evaluated for impairment	93	137	207
Loans individually evaluated for impairment	10
Loans collectively evaluated for impairment	12,130	14,523	19,001
Home Equity Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	264	255	266
Charged offs	(52)	(29)	(92)
Recoveries	1	20
Provision	58	18	81
Balance at end of period	271	264	255
Allowance: Amount for loans collectively evaluated for impairment	271	264	255
Loans collectively evaluated for impairment	51,795	49,565	53,303
Tax Exempt Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	168	141	86
Provision	(97)	27	55
Balance at end of period	71	168	141
Allowance: Amount for loans collectively evaluated for impairment	71	168	141
Loans collectively evaluated for impairment	$ 16,693	$ 16,355	$ 15,244

A valuation allowance for financing receivables that are expected to be uncollectible.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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Amount of direct write-downs of financing receivables charged against the allowance.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

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