Loans (Summary Of Past Due Accruing Loans, Nonaccrual Loans And Current Loans By Loan Segment And Class) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 1,646	$ 5,345
60-89 Days Past Due	141	324
90 Days and Greater Past Due	0	186
Nonaccrual	9,782	8,342
Total Past Due Accruing	11,569	14,197
Current	802,092	722,937
Total loans	813,661	737,134	732,638
Commercial Related Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,462	3,967
60-89 Days Past Due	50	0
90 Days and Greater Past Due	0	0
Nonaccrual	8,916	7,846
Total Past Due Accruing	10,428	11,813
Current	663,776	595,667
Total loans	674,204	607,480	604,389
Builder & Developer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	400
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	247	255
Total Past Due Accruing	247	655
Current	102,865	96,281
Total loans	103,112	96,936	99,186
Commercial Real Estate Investor [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	997	0
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	3,387	3,277
Total Past Due Accruing	4,384	3,277
Current	132,097	119,437
Total loans	136,481	122,714	128,068
Residential Real Estate Investor [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	2,044
60-89 Days Past Due	50	0
90 Days and Greater Past Due	0	0
Nonaccrual	2,460	687
Total Past Due Accruing	2,510	2,731
Current	70,482	63,688
Total loans	72,992	66,419	63,578
Hotel/Motel [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	335	0
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	0	0
Total Past Due Accruing	335	0
Current	65,605	64,948
Total loans	65,940	64,948	60,187
Wholesale & Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	1,067
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	1,339	1,784
Total Past Due Accruing	1,339	2,851
Current	73,140	67,592
Total loans	74,479	70,443	68,151
Manufacturing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	0	0
Total Past Due Accruing	0	0
Current	34,150	40,258
Total loans	34,150	40,258	37,720
Agriculture [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	0	0
Total Past Due Accruing	0	0
Current	35,310	20,928
Total loans	35,310	20,928	18,674
Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	130	456
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	1,483	1,843
Total Past Due Accruing	1,613	2,299
Current	150,127	122,535
Total loans	151,740	124,834	128,825
Consumer Related Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	184	1,378
60-89 Days Past Due	91	324
90 Days and Greater Past Due	0	186
Nonaccrual	866	496
Total Past Due Accruing	1,141	2,384
Current	138,316	127,270
Total loans	139,457	129,654	128,249
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	0	474
60-89 Days Past Due	24	129
90 Days and Greater Past Due	0	0
Nonaccrual	121	53
Total Past Due Accruing	145	656
Current	24,980	22,855
Total loans	25,125	23,511	21,961
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	25	62
60-89 Days Past Due	0	0
90 Days and Greater Past Due	0	0
Nonaccrual	199	152
Total Past Due Accruing	224	214
Current	74,856	65,644
Total loans	75,080	65,858	63,598
Consumer Related Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	159	842
60-89 Days Past Due	67	195
90 Days and Greater Past Due	0	186
Nonaccrual	546	291
Total Past Due Accruing	772	1,514
Current	38,480	38,771
Total loans	$ 39,252	$ 40,285	$ 42,690