Loans Receivable and Credit Quality Troubled Debt Restructured Loans (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 Loans		Dec. 31, 2012 Loans
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	29		26
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 18,320		$ 21,233
Financing Receivable, Modifications, Post-Modification Recorded Investment	18,738		21,226
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	10		4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	10,861		2,473
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0		0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0		0
Financing Receivable, Modifications, Post-Modification Recorded Investment	0		0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0
Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	[1]	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	40	[1]	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	40	[1]	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0		0
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	13	[2]	13	[3]
Financing Receivable, Modifications, Pre-Modification Recorded Investment	1,418	[2]	8,272	[3]
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,429	[2]	8,272	[3]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		3
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,116		1,282
Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	4	[1]	0
Financing Receivable, Modifications, Pre-Modification Recorded Investment	3,604	[1]	0
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,604	[1]	0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	3		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	3,690		0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	8	[4]	11	[5]
Financing Receivable, Modifications, Pre-Modification Recorded Investment	11,889	[4]	11,664	[5]
Financing Receivable, Modifications, Post-Modification Recorded Investment	12,296	[4]	11,657	[5]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	5		0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	5,072		0
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	[6]	2	[7]
Financing Receivable, Modifications, Pre-Modification Recorded Investment	1,369	[6]	1,297	[7]
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,369	[6]	1,297	[7]
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	1		1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	983		1,191
Extension of Term [Member] | Home Equity Line of Credit [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	0
Extension of Term [Member] | Construction Loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	4
Financing Receivable, Modifications, Post-Modification Recorded Investment	3,600
Extension of Term [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	4		8
Financing Receivable, Modifications, Post-Modification Recorded Investment	9,000		6,400
Extension of Term [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1		1
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,000		1,200
Temporary Rate Reduction [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	13		10
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,400		4,000
Temporary Rate Reduction [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	200
Combination of Concessions [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			2
Financing Receivable, Modifications, Post-Modification Recorded Investment			2,400
Combination of Concessions [Member] | Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3		2
Financing Receivable, Modifications, Post-Modification Recorded Investment	2,400		5,300
Combination of Concessions [Member] | Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1
Financing Receivable, Modifications, Post-Modification Recorded Investment	200
Payment Deferral [Member] | Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts			1
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 1,900

[1] Represents the following concessions: extension of term.

[2] Represents the following concessions: temporary rate reduction.

[3] Represents the following concessions: payment deferral (1 loan; post-modification recorded investment of $1.9 million); temporary rate reduction (10 loans; post-modification recorded investment of $4.0 million); and combination of concessions (2 loans; post-modification recorded investment of $2.4 million).

[4] Represents the following concessions: extension of term (4 loans; post-modification recorded investment of $9.0 million); temporary rate reduction (1 loan; post-modification recorded investment of $0.9 million); and combination of concessions (3 loans; post-modification recorded investment of $2.4 million).

[5] Represents the following concessions: extension of term (8 loans; post-modification recorded investment of $6.4 million); and combination of concessions (3 loans; post-modification recorded investment of $5.3 million).

[6] Represents the following concessions: extension of term (1 loan; post-modification recorded investment of $1.0 million); temporary rate reduction (1 loan; post-modification recorded investment of $0.2 million); and combination of concessions (1 loan; post-modification recorded investment of $0.2 million).

[7] Represents the following concessions: extension of term (1 loan; post-modification recorded investment of $1.2 million); and combination of concessions (1 loan; post-modification recorded investment of $0.1 million).