Loans (Impaired Loans) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	$ 3,220,000	[1]	$ 4,709,000	[1]
Recorded Investment of Impaired Loans with Related Allowance	34,318,000	[1]	30,853,000	[1]
Total Recorded Investment of Impaired Loans	37,538,000	[1]	35,562,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	3,307,000		4,732,000
Unpaid Principal of Impaired Loans with Related Allowance	37,541,000		33,926,000
No Related Allowance on Impaired Loans	0		0
Total Unpaid Principal of Impaired Loans	40,848,000		38,658,000
Related Allowance on Impaired Loans	1,481,000		2,880,000
Average Recorded Investment of Impaired Loans	37,967,000		26,551,000		29,544,000
Interest Income Recognized on Impaired Loans	967,000		679,000		1,152,000
Loans And Leases Receivable Commitment To Lend To Borrowers With Nonaccrual or TDR Loans	0		0
Commercial Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	998,000	[1]	2,357,000	[1]
Recorded Investment of Impaired Loans with Related Allowance	29,335,000	[1]	17,897,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	998,000		2,360,000
Unpaid Principal of Impaired Loans with Related Allowance	31,731,000		19,738,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	552,000		1,720,000
Average Recorded Investment of Impaired Loans	27,496,000		10,785,000		14,923,000
Interest Income Recognized on Impaired Loans	630,000		273,000		539,000
Commercial Construction and Development [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	0	[1]	0	[1]
Recorded Investment of Impaired Loans with Related Allowance	0	[1]	0	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	0		0
Unpaid Principal of Impaired Loans with Related Allowance	0		0
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	0		0
Average Recorded Investment of Impaired Loans	0		0		0
Interest Income Recognized on Impaired Loans	0		0		0
Commercial Other [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	1,055,000	[1]	1,058,000	[1]
Recorded Investment of Impaired Loans with Related Allowance	1,506,000	[1]	9,939,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	1,050,000		1,057,000
Unpaid Principal of Impaired Loans with Related Allowance	1,945,000		10,690,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	463,000		694,000
Average Recorded Investment of Impaired Loans	6,029,000		10,661,000		8,226,000
Interest Income Recognized on Impaired Loans	190,000		297,000		388,000
Residential Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	1,167,000	[1]	1,294,000	[1]
Recorded Investment of Impaired Loans with Related Allowance	3,122,000	[1]	2,576,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	1,259,000		1,315,000
Unpaid Principal of Impaired Loans with Related Allowance	3,507,000		2,947,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	463,000		463,000
Average Recorded Investment of Impaired Loans	4,024,000		4,651,000		5,743,000
Interest Income Recognized on Impaired Loans	125,000		88,000		188,000
Homeowner Construction [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	0	[1]	0	[1]
Recorded Investment of Impaired Loans with Related Allowance	0	[1]	0	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	0		0
Unpaid Principal of Impaired Loans with Related Allowance	0		0
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	0		0
Average Recorded Investment of Impaired Loans	0		0		0
Interest Income Recognized on Impaired Loans	0		0		0
Home Equity Lines [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	0	[1]	0	[1]
Recorded Investment of Impaired Loans with Related Allowance	173,000	[1]	187,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	0		0
Unpaid Principal of Impaired Loans with Related Allowance	174,000		255,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	1,000		1,000
Average Recorded Investment of Impaired Loans	200,000		172,000		127,000
Interest Income Recognized on Impaired Loans	7,000		3,000		5,000
Home Equity Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	0	[1]	0	[1]
Recorded Investment of Impaired Loans with Related Allowance	55,000	[1]	117,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	0		0
Unpaid Principal of Impaired Loans with Related Allowance	54,000		160,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	0		0
Average Recorded Investment of Impaired Loans	72,000		131,000		290,000
Interest Income Recognized on Impaired Loans	6,000		7,000		17,000
Other Consumer [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment of Impaired Loans with No Related Allowance	0	[1]	0	[1]
Recorded Investment of Impaired Loans with Related Allowance	127,000	[1]	137,000	[1]
Unpaid Principal of Impaired Loans with No Related Allowance	0		0
Unpaid Principal of Impaired Loans with Related Allowance	130,000		136,000
No Related Allowance on Impaired Loans	0		0
Related Allowance on Impaired Loans	2,000		2,000
Average Recorded Investment of Impaired Loans	146,000		151,000		235,000
Interest Income Recognized on Impaired Loans	9,000		11,000		15,000
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total Recorded Investment of Impaired Loans	32,894,000	[1]	31,251,000	[1]
Total Unpaid Principal of Impaired Loans	35,724,000		33,845,000
Related Allowance on Impaired Loans	1,015,000		2,414,000
Residential Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total Recorded Investment of Impaired Loans	4,289,000	[1]	3,870,000	[1]
Total Unpaid Principal of Impaired Loans	4,766,000		4,262,000
Related Allowance on Impaired Loans	463,000		463,000
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total Recorded Investment of Impaired Loans	355,000	[1]	441,000	[1]
Total Unpaid Principal of Impaired Loans	358,000		551,000
Related Allowance on Impaired Loans	$ 3,000		$ 3,000

[1] The recorded investment in impaired loans consists of unpaid principal balance, net of charge-offs, interest payments received applied to principal and unamortized deferred loan origination fees and costs. For impaired accruing loans (those troubled debt restructurings for which management has concluded that the collectibility of the loan is not in doubt), the recorded investment also includes accrued interest.