Loans, Allowance for Loan Losses and Credit Quality (TDRs that have subsequently defaulted) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 contract	Sep. 30, 2013 contract	Sep. 30, 2014 contract	Sep. 30, 2013 contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	2		4	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 133		$ 260	$ 1,845
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		1	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	46		46	1,614
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts				1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment				231
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		3	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 87		$ 214	$ 0