Loans (Summary Of Past Due Loans, Nonaccrual Loans And Current Loans By Loan Segment And Class) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	$ 2,797	$ 3,233
Total Past Due and Nonaccrual	5,395	6,672
Current	1,144,752	1,116,539
Total Loans	1,150,147	1,123,211	$ 1,020,792
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	1,481	1,594
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	251	1,361
Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	866	484
Total Commercial Related Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	2,099	2,847
Total Past Due and Nonaccrual	3,841	5,110
Current	961,169	931,304
Total Loans	965,010	936,414	829,186
Total Commercial Related Loans [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	904	938
Total Commercial Related Loans [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	138	1,127
Total Commercial Related Loans [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	700	198
Total Consumer Related Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	698	386
Total Past Due and Nonaccrual	1,554	1,562
Current	183,583	185,235
Total Loans	185,137	186,797	191,606
Total Consumer Related Loans [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	577	656
Total Consumer Related Loans [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	113	234
Total Consumer Related Loans [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	166	286
Builder & Developer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	92	411
Total Past Due and Nonaccrual	969	1,117
Current	140,954	132,861
Total Loans	141,923	133,978	126,637
Builder & Developer [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	570	398
Builder & Developer [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	308
Builder & Developer [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	307	0
Commercial Real Estate Investor [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	20
Total Past Due and Nonaccrual	215	632
Current	209,801	191,362
Total Loans	210,016	191,994	161,635
Commercial Real Estate Investor [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	215	216
Commercial Real Estate Investor [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	396
Commercial Real Estate Investor [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Real Estate Investor [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	411	597
Total Past Due and Nonaccrual	411	901
Current	158,402	160,243
Total Loans	158,813	161,144	111,497
Residential Real Estate Investor [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Real Estate Investor [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	304
Residential Real Estate Investor [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Hotel/Motel [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	411	420
Total Past Due and Nonaccrual	411	420
Current	83,178	83,751
Total Loans	83,589	84,171	81,441
Hotel/Motel [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Hotel/Motel [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Hotel/Motel [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Wholesale & Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	28	43
Total Past Due and Nonaccrual	285	162
Current	77,360	77,532
Total Loans	77,645	77,694	77,455
Wholesale & Retail [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	119	0
Wholesale & Retail [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	138	119
Wholesale & Retail [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Manufacturing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	0	0
Total Past Due and Nonaccrual	0	0
Current	32,988	30,325
Total Loans	32,988	30,325	33,095
Manufacturing [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Manufacturing [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Manufacturing [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Agriculture [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	390	422
Total Past Due and Nonaccrual	590	422
Current	40,776	40,795
Total Loans	41,366	41,217	43,849
Agriculture [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Agriculture [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Agriculture [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	200	0
Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	767	934
Total Past Due and Nonaccrual	960	1,456
Current	217,710	214,435
Total Loans	218,670	215,891	193,577
Other Commercial [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	324
Other Commercial [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Other Commercial [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	193	198
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	200	67
Total Past Due and Nonaccrual	550	316
Current	67,868	69,778
Total Loans	68,418	70,094	74,665
Residential Mortgages [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	271	0
Residential Mortgages [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	0	0
Residential Mortgages [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	79	249
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	351	202
Total Past Due and Nonaccrual	636	758
Current	85,500	85,650
Total Loans	86,136	86,408	83,629
Home Equity [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	156	485
Home Equity [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	54	71
Home Equity [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	75	0
Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual	147	117
Total Past Due and Nonaccrual	368	488
Current	30,215	29,807
Total Loans	30,583	30,295	$ 33,312
Other Consumer [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	150	171
Other Consumer [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	59	163
Other Consumer [Member] | Greater Than Or Equal To 90 Days Past Due And Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due	$ 12	$ 37