Loans (Past Due Loans) (Details) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		$ 9,349	$ 6,033
Loans 60 to 89 Days Past Due		3,609	2,368
Loans Over 90 Days Past Due		11,071	9,677
Total Loans Past Due		24,029	18,078
Current Loans		2,904,555	2,841,198
Total loans	[1]	2,928,584	2,859,276
Commercial Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		14	0
Loans 60 to 89 Days Past Due		0	0
Loans Over 90 Days Past Due		4,915	5,315
Total Loans Past Due		4,929	5,315
Current Loans		871,660	838,663
Total loans		876,589	843,978
Commercial Construction & Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		0	0
Loans 60 to 89 Days Past Due		0	0
Loans Over 90 Days Past Due		0	0
Total Loans Past Due		0	0
Current Loans		110,989	79,592
Total loans		110,989	79,592
Commercial & Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		2,581	2,136
Loans 60 to 89 Days Past Due		2,299	1,202
Loans Over 90 Days Past Due		638	181
Total Loans Past Due		5,518	3,519
Current Loans		590,441	608,399
Total loans		595,959	611,918
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		5,120	2,943
Loans 60 to 89 Days Past Due		913	821
Loans Over 90 Days Past Due		4,871	3,284
Total Loans Past Due		10,904	7,048
Current Loans		960,801	941,683
Total loans		971,705	948,731
Homeowner Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		0	0
Loans 60 to 89 Days Past Due		0	0
Loans Over 90 Days Past Due		0	0
Total Loans Past Due		0	0
Current Loans		29,558	36,684
Total loans		29,558	36,684
Home Equity Lines [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		1,098	570
Loans 60 to 89 Days Past Due		74	100
Loans Over 90 Days Past Due		50	841
Total Loans Past Due		1,222	1,511
Current Loans		248,623	240,969
Total loans		249,845	242,480
Home Equity Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		527	349
Loans 60 to 89 Days Past Due		315	240
Loans Over 90 Days Past Due		348	56
Total Loans Past Due		1,190	645
Current Loans		46,247	46,322
Total loans		47,437	46,967
Other Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30 to 59 Days Past Due		9	35
Loans 60 to 89 Days Past Due		8	5
Loans Over 90 Days Past Due		249	0
Total Loans Past Due		266	40
Current Loans		46,236	48,886
Total loans		$ 46,502	$ 48,926

[1] Includes net unamortized loan origination costs of $2.5 million and $2.1 million, respectively, and net unamortized premiums on purchased loans of $91 thousand and $94 thousand, respectively, at June 30, 2015 and December 31, 2014.