Loans, Allowance for Loan Losses and Credit Quality (Details 9) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013 contract	Jun. 30, 2012 contract	Jun. 30, 2013 contract	Jun. 30, 2012 contract
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Number of Contracts	5		6	2
Recorded Investment	$ 2,187		$ 2,418	$ 256
Commercial and Industrial [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Number of Contracts	2		2
Recorded Investment	1,767		1,767
Commercial Real Estate [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Number of Contracts	1		1	1
Recorded Investment	398		398	250
Small Business [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Number of Contracts	2		3
Recorded Investment	22		253
Consumer Loan [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Number of Contracts				1
Recorded Investment				$ 6