Loans (Impaired Loans Interest Income Recognized) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	$ 32,372	$ 40,189	$ 33,581	$ 38,141
Interest Income Recognized on Impaired Loans	295	233	502	427
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	25,093	27,904	26,707	24,423
Interest Income Recognized on Impaired Loans	240	152	405	252
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	2,492	7,385	2,429	9,001
Interest Income Recognized on Impaired Loans	15	50	38	114
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	4,452	4,496	4,100	4,250
Interest Income Recognized on Impaired Loans	36	27	50	49
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	60	191	97	227
Interest Income Recognized on Impaired Loans	0	1	2	4
Home Equity Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	157	69	126	87
Interest Income Recognized on Impaired Loans	2	1	3	4
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment of Impaired Loans	118	144	122	153
Interest Income Recognized on Impaired Loans	$ 2	$ 2	$ 4	$ 4