Loans, Allowance for Loan Losses and Credit Quality (Modifications which occurred during the period & change in recorded investment) (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, Number of Contracts	11		9		44	29
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 2,499		$ 1,173		$ 7,204	$ 4,905
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,501	[1]	1,173	[1]	7,235	4,931
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3		1		12	3
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	193		37		744	319
Financing Receivable, Modifications, Post-Modification Recorded Investment	193	[1]	37	[1]	744	319
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	5		2		13	4
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	2,095		463		4,225	1,526
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,095	[1]	463	[1]	4,225	1,526
Small Business [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0		4		1	9
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0		261		58	543
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	[1]	261	[1]	58	543
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1		1		8	7
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	156		228		1,388	2,128
Financing Receivable, Modifications, Post-Modification Recorded Investment	158	[1]	228	[1]	1,419	2,154
Consumer - Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2		1		9	4
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	55		184		781	378
Financing Receivable, Modifications, Post-Modification Recorded Investment	55	[1]	184	[1]	781	378
Consumer - Other [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0		0		1	2
TROUBLED DEBT RESTRUCTURINGS:
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0		0		8	11
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	[1]	$ 0	[1]	$ 8	$ 11

[1] The post-modification balances represent the balance of the loan on the date of modifications. These amounts may show an increase when modifications include a capitalization of interest.