Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012
Nature of Operations
Number of banking locations	165
Number of consumer finance offices	50
Cash and Cash Equivalents
Maximum term of original maturity to classify instruments as cash and cash equivalents	3 months
Investment Securities
Securities classified as trading	$ 0	$ 0
Loans Receivable
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	6 months
Residential mortgage loans identified as loans held for sale	221,000	15,400,000
Allowance for Loan Losses and Provision for Loan Losses
Amount of loans evaluated individually for impairment	115,073,000	127,979,000
Personal Banking
Allowance for Loan Losses and Provision for Loan Losses
Amount of loans evaluated individually for impairment	7,477,000	6,936,000
Actual losses incurred through average number of rolling years	3 years
Number of days delinquent for loans to be charged off or charged down unless that borrower has filed for bankruptcy	180 days
Business Banking
Allowance for Loan Losses and Provision for Loan Losses
Amount of loans evaluated individually for impairment	107,596,000	121,043,000
Actual losses incurred through average number of rolling years	3 years
Minimum
Loans Receivable
Number of days in delinquency for accrued interest on loans to be considered for reversal	90 days
Period of time to return TDRs included in impaired loans to performing status through the fulfilling of contractual terms	6 months
Minimum | Personal Banking
Allowance for Loan Losses and Provision for Loan Losses
Number of days delinquent for allowance for loans	90 days
Minimum | Business Banking
Allowance for Loan Losses and Provision for Loan Losses
Amount of loans evaluated individually for impairment	$ 1,000,000
Maximum
Loans Receivable
Number of days delinquent for loans to be placed on non-accrual status	90 days
Allowance for Loan Losses and Provision for Loan Losses
Number of days for loans not deemed to be impaired	30 days