Loans And Allowance For Loan Losses (Schedule Of Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	$ 3,230	$ 3,131
60-89 Days Past Due	871	2,325
90 Days or Greater	5,831	4,689
Total Past Due	9,932	10,145
Current	909,108	842,985
Total loans	919,040us-gaap_LoansReceivableNet	853,130us-gaap_LoansReceivableNet
Non-Accrual	12,288	8,840
Greater than 90 Days Past Due and Accruing
Commercial Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	189	786
60-89 Days Past Due	234	361
90 Days or Greater	1,843	698
Total Past Due	2,266	1,845
Current	323,683	334,697
Total loans	325,949	336,542
Non-Accrual	3,156	2,046
Greater than 90 Days Past Due and Accruing
Commercial and Industrial Receivable [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	665	29
60-89 Days Past Due	45	20
90 Days or Greater	333	456
Total Past Due	1,043	505
Current	72,850	73,467
Total loans	73,893	73,972
Non-Accrual	624	793
Greater than 90 Days Past Due and Accruing
Commercial Construction And Land Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
90 Days or Greater	1,328	1,845
Total Past Due	1,328	1,845
Current	24,093	16,284
Total loans	25,421	18,129
Non-Accrual	1,328	1,913
Greater than 90 Days Past Due and Accruing
Agricultural and Other Loans to Farmers [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	27	22
90 Days or Greater	64
Total Past Due	91	22
Current	30,380	26,907
Total loans	30,471	26,929
Non-Accrual	84	56
Greater than 90 Days Past Due and Accruing
Residential Real Estate Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	1,980	2,170
60-89 Days Past Due	547	1,864
90 Days or Greater	1,681	1,649
Total Past Due	4,208	5,683
Current	378,470	311,432
Total loans	382,678	317,115
Non-Accrual	6,051	3,227
Greater than 90 Days Past Due and Accruing
Home Equity Loan [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	138	67
60-89 Days Past Due	40
90 Days or Greater	575
Total Past Due	753	67
Current	51,042	49,498
Total loans	51,795	49,565
Non-Accrual	1,029	745
Greater than 90 Days Past Due and Accruing
Other Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
30-59 Days Past Due	231	57
60-89 Days Past Due	5	80
90 Days or Greater	7	41
Total Past Due	243	178
Current	11,897	14,345
Total loans	12,140	14,523
Non-Accrual	16	60
Greater than 90 Days Past Due and Accruing
Tax Exempt Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Current	16,693	16,355
Total loans	16,693	16,355
Greater than 90 Days Past Due and Accruing

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Financing receivables that are less than 60 days past due but more than 29 days past due.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7A

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953401-111524

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 7

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Financing receivables that are equal to or greater than 90 days past due.

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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Recorded Investment in financing receivables that are past due at the balance sheet date.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 210

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