Loans Receivable, Financial Instruments Whose Contract Amounts Represent Credit Risk (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Financial instruments whose contract amount represents credit risk [Abstract]
Number of bulk loan sales	2
Standby Letters of Credit [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	$ 14,719,000	$ 16,309,000
Letters of credit expiry period	12 months
Home Equity Lines of Credit [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	12,345,000	13,025,000
Loan expiry period	10 years
Unadvanced Construction Commitments [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	34,023,000	15,598,000
Mortgage Loan Commitments [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	4,193,000	13,601,000
Fixed rate loan commitments	4,193,000
Fixed interest rate, minimum (in hundredths)	3.625%
Fixed interest rate, maximum (in hundredths)	5.25%
Floating rate loan commitments	0
Lines of Credit [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	30,965,000	31,480,000
Loans Sold with Limited Repurchase Provision [Member]
Financial instruments whose contract amount represents credit risk [Abstract]
Off-balance sheet credit risk	28,134,000	31,591,000
Loans receivable held-for-sale, amount	$ 116,788,000	$ 105,674,000
Period of delinquency under repurchase agreement, minimum	90 days	90 days
Period of delinquency under repurchase agreement, maximum	120 days	120 days