Loans (Schedule of Contractual Aging of Recorded Investment in Past Due Loans by Class) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	$ 3,267	$ 4,491	$ 5,972
Past Due, 60-89 days	2,312	3,466	2,513
Past Due, greater than 90 days	8,583	8,255	9,554
Past Due, Total	14,162	16,212	18,039
Current	1,093,943	1,074,591	1,032,457
Recorded Investment greater then 90 days and Accruing	0	9	0
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	39	345	388
Past Due, 60-89 days	468	26	0
Past Due, greater than 90 days	179	632	744
Past Due, Total	686	1,003	1,132
Current	101,056	96,198	88,796
Recorded Investment greater then 90 days and Accruing	0	0	0
Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	272	158	119
Past Due, 60-89 days	497	386	0
Past Due, greater than 90 days	822	437	629
Past Due, Total	1,591	981	748
Current	201,089	202,574	179,521
Recorded Investment greater then 90 days and Accruing	0	0	0
Non-Owner Occupied [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	153	1	664
Past Due, 60-89 days	0	0	0
Past Due, greater than 90 days	749	856	406
Past Due, Total	902	857	1,070
Current	352,449	336,437	324,694
Recorded Investment greater then 90 days and Accruing	0	0	0
Land and Land Improvements [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	178	1,182	1,376
Past Due, 60-89 days	41	194	1,361
Past Due, greater than 90 days	4,739	4,547	4,980
Past Due, Total	4,958	5,923	7,717
Current	61,525	59,577	58,841
Recorded Investment greater then 90 days and Accruing	0	0	0
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	0	0	0
Past Due, 60-89 days	0	0	0
Past Due, greater than 90 days	0	0	0
Past Due, Total	0	0	0
Current	7,997	9,970	19,094
Recorded Investment greater then 90 days and Accruing	0	0	0
Non-Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	2,555	2,276	2,891
Past Due, 60-89 days	832	2,647	1,090
Past Due, greater than 90 days	1,906	1,591	1,888
Past Due, Total	5,293	6,514	5,869
Current	216,075	215,236	214,069
Recorded Investment greater then 90 days and Accruing	0	0	0
Jumbo [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	0	0	0
Past Due, 60-89 days	0	0	0
Past Due, greater than 90 days	0	0	713
Past Due, Total	0	0	713
Current	50,057	50,313	49,779
Recorded Investment greater then 90 days and Accruing	0	0	0
Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	0	374	395
Past Due, 60-89 days	453	172	0
Past Due, greater than 90 days	71	100	172
Past Due, Total	524	646	567
Current	73,573	73,654	68,327
Recorded Investment greater then 90 days and Accruing	0	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	70	155	139
Past Due, 60-89 days	21	41	62
Past Due, greater than 90 days	117	92	22
Past Due, Total	208	288	223
Current	18,887	18,963	18,262
Recorded Investment greater then 90 days and Accruing	0	9	0
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due, 30-59 days	0	0	0
Past Due, 60-89 days	0	0	0
Past Due, greater than 90 days	0	0	0
Past Due, Total	0	0	0
Current	11,235	11,669	11,074
Recorded Investment greater then 90 days and Accruing	$ 0	$ 0	$ 0