Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Loan	Mar. 31, 2013 Loan
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	13	24
Troubled debt restructurings, Pre-modification recorded balance	$ 5,110	$ 6,250
Troubled debt restructurings, Post-modification recorded balance	4,481	6,591
TDRs that Subsequently Defaulted, Number of Loans	2	5
TDRs that Subsequently Defaulted, Recorded Balance	42	1,109
Residential Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	0	7
Troubled debt restructurings, Pre-modification recorded balance	0	1,358
Troubled debt restructurings, Post-modification recorded balance	0	1,699
TDRs that Subsequently Defaulted, Number of Loans	0	0
TDRs that Subsequently Defaulted, Recorded Balance	0	0
Commercial Real Estate
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	5	9
Troubled debt restructurings, Pre-modification recorded balance	2,475	3,316
Troubled debt restructurings, Post-modification recorded balance	2,475	3,316
TDRs that Subsequently Defaulted, Number of Loans	0	3
TDRs that Subsequently Defaulted, Recorded Balance	0	1,052
Other Commercial
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	7	7
Troubled debt restructurings, Pre-modification recorded balance	2,439	1,505
Troubled debt restructurings, Post-modification recorded balance	1,810	1,505
TDRs that Subsequently Defaulted, Number of Loans	2	1
TDRs that Subsequently Defaulted, Recorded Balance	42	12
Home Equity
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	1	0
Troubled debt restructurings, Pre-modification recorded balance	196	0
Troubled debt restructurings, Post-modification recorded balance	196	0
TDRs that Subsequently Defaulted, Number of Loans	0	0
TDRs that Subsequently Defaulted, Recorded Balance	0	0
Other Consumer
Troubled Debt Restructurings
Troubled debt restructurings, Number of Loans	0	1
Troubled debt restructurings, Pre-modification recorded balance	0	71
Troubled debt restructurings, Post-modification recorded balance	0	71
TDRs that Subsequently Defaulted, Number of Loans	0	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 45