Allowance For Loan Losses And Credit Quality Of Financing Receivables (Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Total Recorded Investment	$ 14,018	$ 18,522
Total Unpaid Principal Balance	15,723	22,971
Related Allowance	434	365
Commercial And Industrial [Member]
Financing Receivable, Impaired [Line Items]
With an allowance recorded, Recorded Investment		27
With an allowance recorded, Unpaid Principal Balance		27
Total Recorded Investment		27
Total Unpaid Principal Balance		27
Related Allowance		27
Construction [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance, Recorded Investment		2,421
With no related allowance, Unpaid Principal Balance		2,743
With an allowance recorded, Recorded Investment	269	42
With an allowance recorded, Unpaid Principal Balance	391	42
Total Recorded Investment	269	2,463
Total Unpaid Principal Balance	391	2,785
Related Allowance	27	42
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance, Recorded Investment	8,039	10,466
With no related allowance, Unpaid Principal Balance	8,398	13,581
With an allowance recorded, Recorded Investment	2,891	2,216
With an allowance recorded, Unpaid Principal Balance	3,967	3,135
Total Recorded Investment	10,930	12,682
Total Unpaid Principal Balance	12,365	16,716
Related Allowance	308	230
Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With no related allowance, Recorded Investment	2,182	2,675
With no related allowance, Unpaid Principal Balance	2,237	2,768
With an allowance recorded, Recorded Investment	637	675
With an allowance recorded, Unpaid Principal Balance	730	675
Total Recorded Investment	2,819	3,350
Total Unpaid Principal Balance	2,967	3,443
Related Allowance	$ 99	$ 66