Loans (Impaired Loans Interest Income Recognized) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	$ 30,540	$ 37,146	$ 32,556	$ 37,805
Interest Income Recognized on Impaired Loans	234	291	736	718
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	23,435	29,430	25,605	26,110
Interest Income Recognized on Impaired Loans	175	192	580	444
Commercial Construction and 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 Other [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	2,570	3,536	2,477	7,159
Interest Income Recognized on Impaired Loans	25	43	63	157
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	4,253	3,818	4,151	4,104
Interest Income Recognized on Impaired Loans	31	51	81	100
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	82	173	92	209
Interest Income Recognized on Impaired Loans	0	2	2	6
Home Equity Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	83	58	111	77
Interest Income Recognized on Impaired Loans	1	1	4	5
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	117	131	120	146
Interest Income Recognized on Impaired Loans	$ 2	$ 2	$ 6	$ 6