Loans (Schedule of Financing Receivable Recorded Investment Credit Quality Indicator) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Loans	$ 1,005,068	$ 918,894	$ 895,839
Commercial Equipment [Member]
Loans	33,185	29,931	26,804
Commercial Equipment [Member] | Unrated [Member]
Loans	10,137	10,074
Commercial Equipment [Member] | Pass [Member]
Loans	22,752	19,610
Commercial Equipment [Member] | Substandard [Member]
Loans	159	110
Commercial Equipment [Member] | Doubtful [Member]
Loans	137	137
Commercial Loans [Member]
Loans	57,167	67,246	63,480
Commercial Loans [Member] | Unrated [Member]
Loans	11,373	11,281
Commercial Loans [Member] | Pass [Member]
Loans	41,789	51,569
Commercial Loans [Member] | Substandard [Member]
Loans	4,005	4,110
Commercial Loans [Member] | Doubtful [Member]
Loans		286
Consumer Loans [Member]
Loans	332	366	396
Consumer Loans [Member] | Performing Financing Receivable [Member]
Loans	332	366
Home Equity and Second Mortgage [Member]
Loans	22,104	21,716	21,068
Home Equity and Second Mortgage [Member] | Performing Financing Receivable [Member]
Loans	22,104	21,668
Home Equity and Second Mortgage [Member] | Nonperforming Financing Receivable [Member]
Loans		48
Residential Rentals [Member]
Loans	100,202	93,157	84,668
Residential Rentals [Member] | Unrated [Member]
Loans	23,209	21,585
Residential Rentals [Member] | Pass [Member]
Loans	75,520	67,926
Residential Rentals [Member] | Special Mention [Member]
Loans		845
Residential Rentals [Member] | Substandard [Member]
Loans	1,473	2,801
Residential First Mortgages [Member]
Loans	148,138	131,401	137,439
Residential First Mortgages [Member] | Performing Financing Receivable [Member]
Loans	147,068	129,453
Residential First Mortgages [Member] | Nonperforming Financing Receivable [Member]
Loans	1,070	1,948
Construction and Land Development [Member]
Loans	35,560	36,189	39,159
Construction and Land Development [Member] | Unrated [Member]
Loans	2,961	4,399
Construction and Land Development [Member] | Pass [Member]
Loans	28,229	27,507
Construction and Land Development [Member] | Substandard [Member]
Loans	4,005	3,845
Construction and Land Development [Member] | Doubtful [Member]
Loans	365	438
Commercial Real Estate [Member]
Loans	608,380	538,888	$ 522,825
Commercial Real Estate [Member] | Unrated [Member]
Loans	50,104	51,924
Commercial Real Estate [Member] | Pass [Member]
Loans	537,078	466,601
Commercial Real Estate [Member] | Special Mention [Member]
Loans		250
Commercial Real Estate [Member] | Substandard [Member]
Loans	21,198	20,113
Classified Loans [Member]
Loans	31,936	32,804
Classified Loans [Member] | Classified Loans By Internally Assigned Grade [Member]
Loans	31,342	31,840
Classified Loans [Member] | Classified Loans By Payment Activity [Member]
Loans	$ 594	$ 964