Loans (Impaired Loans Interest Income Recognized) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	$ 31,233	$ 23,469	$ 30,796	$ 22,273
Interest Income Recognized on Impaired Loans	161	144	565	405
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	13,159	14,583	13,856	14,692
Interest Income Recognized on Impaired Loans	40	82	220	237
Commercial Construction & Development [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	0	0	0	0
Interest Income Recognized on Impaired Loans	0	0	0	0
Commercial & Industrial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	2,342	3,376	3,141	3,164
Interest Income Recognized on Impaired Loans	21	29	42	89
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	13,962	4,484	11,985	3,735
Interest Income Recognized on Impaired Loans	86	27	253	67
Homeowner Construction [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	0	0	0	0
Interest Income Recognized on Impaired Loans	0	0	0	0
Home Equity Lines [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	297	157	427	227
Interest Income Recognized on Impaired Loans	2	1	10	1
Home Equity Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	1,328	515	1,240	224
Interest Income Recognized on Impaired Loans	9	3	33	4
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	145	354	147	231
Interest Income Recognized on Impaired Loans	$ 3	$ 2	$ 7	$ 7