Loans (Troubled Debt Restructurings) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 contract		Dec. 31, 2011 contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 26		$ 990
Financing Receivable, Modifications, Subsequent Default, Determination of Allowance for Credit Losses	0		0
Commercial Real Estate, Construction
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	0		0
Recorded Investment, Pre-Modification	0	[1]	0	[1]
Recorded Investment, Post-Modification	0	[1]	0	[1]
Total Recorded Investment	0	[1]	0	[1]
Commercial Real Estate, Other
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	4		5
Recorded Investment, Pre-Modification	1,765	[1]	3,169
Recorded Investment, Post-Modification	1,765	[1]	3,169
Total Recorded Investment	1,734	[1]	2,959
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	4		5
Recorded Investment, Pre-Modification	1,765	[1]	3,169
Recorded Investment, Post-Modification	1,765	[1]	3,169
Total Recorded Investment	1,734	[1]	2,959
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0		2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		675
Financing Receivable, Modifications, Subsequent Default, Determination of Allowance for Credit Losses	0		0
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	66		0
Recorded Investment, Pre-Modification	2,550	[1]	0
Recorded Investment, Post-Modification	2,550	[1]	0
Total Recorded Investment	2,550	[1]	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	26		315
Financing Receivable, Modifications, Subsequent Default, Determination of Allowance for Credit Losses	0		0
Home Equity Lines of Credit
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	24		0
Recorded Investment, Pre-Modification	349	[1]	0
Recorded Investment, Post-Modification	349	[1]	0
Total Recorded Investment	349	[1]	0
Consumer
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts During Period	37		0
Recorded Investment, Pre-Modification	115	[1]	0
Recorded Investment, Post-Modification	115	[1]	0
Total Recorded Investment	$ 115	[1]	$ 0

[1] The amounts shown are inclusive of all partial paydowns and charge-offs. Loans modified in a TDR that were fully paid down, charged-off or foreclosed upon by period end are not reported.