Loans And Allowance For Loan Losses (Schedule Of Past Due Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 6,276	$ 9,932
Current	983,690	909,108
Total Loans	989,966	919,040
Non-Accrual	6,980	12,288
Greater Than 90 Days Past Due and Accruing	28
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,744	3,230
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	810	871
90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,722	5,831
Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	627	2,266
Current	370,375	323,683
Total Loans	371,002	325,949
Non-Accrual	1,279	3,156
Commercial Real Estate Mortgages [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	99	189
Commercial Real Estate Mortgages [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	287	234
Commercial Real Estate Mortgages [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	241	1,843
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	281	1,043
Current	79,630	72,850
Total Loans	79,911	73,893
Non-Accrual	292	624
Commercial And Industrial [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9	665
Commercial And Industrial [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1	45
Commercial And Industrial [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	271	333
Commercial Construction And Land Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,111	1,328
Current	23,815	24,093
Total Loans	24,926	25,421
Non-Accrual	1,111	1,328
Commercial Construction And Land Development [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,111	1,328
Agriculture And Other Loans To Farmers [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	85	91
Current	30,918	30,380
Total Loans	31,003	30,471
Non-Accrual	16	84
Greater Than 90 Days Past Due and Accruing	3
Agriculture And Other Loans To Farmers [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12	27
Agriculture And Other Loans To Farmers [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	70
Agriculture And Other Loans To Farmers [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3	64
Residential Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,064	4,208
Current	403,588	378,470
Total Loans	406,652	382,678
Non-Accrual	3,452	6,051
Greater Than 90 Days Past Due and Accruing	25
Residential Real Estate Mortgages [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,313	1,980
Residential Real Estate Mortgages [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	452	547
Residential Real Estate Mortgages [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,299	1,681
Home Equity Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,042	753
Current	50,488	51,042
Total Loans	51,530	51,795
Non-Accrual	820	1,029
Home Equity Loans [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	245	138
Home Equity Loans [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		40
Home Equity Loans [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	797	575
Other Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	243
Current	9,632	11,897
Total Loans	9,698	12,140
Non-Accrual	10	16
Other Consumer Loans [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	231
Other Consumer Loans [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		5
Other Consumer Loans [Member] | 90 Days Or Greater [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		7
Tax Exempt [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	15,244	16,693
Total Loans	$ 15,244	$ 16,693