Loans Receivable and Allowance for Loan Losses (Details 7) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012 item
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	14	12
Total	$ 11,549	$ 8,821
Rate
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	152	2,547
Payment
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	316
Maturity date
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	11,081	5,739
Other
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total		535
Personal Banking
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	1
Total	89
Personal Banking | Payment
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	89
Personal Banking | Home equity loans
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	1
Total	89
Personal Banking | Home equity loans | Payment
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	89
Business Banking
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	13	12
Total	11,460	8,821
Business Banking | Rate
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	152	2,547
Business Banking | Payment
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	227
Business Banking | Maturity date
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	11,081	5,739
Business Banking | Other
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total		535
Business Banking | Commercial real estate loans
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	8	5
Total	850	2,693
Business Banking | Commercial real estate loans | Rate
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	152	800
Business Banking | Commercial real estate loans | Payment
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	227
Business Banking | Commercial real estate loans | Maturity date
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	471	1,662
Business Banking | Commercial real estate loans | Other
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total		231
Business Banking | Commercial loans
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Number of re-modified TDRs	5	7
Total	10,610	6,128
Business Banking | Commercial loans | Rate
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total		1,747
Business Banking | Commercial loans | Maturity date
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total	10,610	4,077
Business Banking | Commercial loans | Other
Re-modified troubled debt restructurings by portfolio segment and by class of financing receivable
Total		$ 304