Loans Receivable, Loans Receivable (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Loans receivable [Abstract]
Total loans	$ 669,354,000		$ 650,752,000
Less [Abstract]
Unfunded commitments included above	(36,854,000)		(34,069,000)
Total loans excluding unfunded commitments	632,500,000		616,683,000
Individually evaluated for impairment	40,518,000		45,888,000
Collectively evaluated for impairment	591,982,000		570,795,000
Total loans excluding unfunded commitments	632,500,000		616,683,000
Allowance for loan losses	(9,282,000)		(11,739,000)
Deferred loan origination fees and costs, net	(3,158,000)		(2,131,000)
Loans receivable	620,060,000		602,813,000
Nonaccrual period of loan considered to be impaired	90 days
Interest income and capitalized interest from interest reserves	29,000	8,000
Residential Mortgage [Member]
Loans receivable [Abstract]
Total loans	295,656,000		258,919,000
Less [Abstract]
Individually evaluated for impairment	28,959,000		35,064,000
Collectively evaluated for impairment	266,697,000		223,855,000
Loan to value ratio (in hundredths)	80.00%
Construction, Land Acquisition and Development [Member]
Loans receivable [Abstract]
Total loans	79,105,000		75,539,000
Less [Abstract]
Individually evaluated for impairment	916,000		2,808,000
Collectively evaluated for impairment	78,189,000		72,731,000
Term of the construction period, maximum	2 years
Construction, Land Acquisition and Development [Member] | Minimum [Member]
Less [Abstract]
Extension period for loans	12 months
Construction, Land Acquisition and Development [Member] | Maximum [Member]
Less [Abstract]
Extension period for loans	18 months
Land [Member]
Loans receivable [Abstract]
Total loans	31,965,000		34,429,000
Less [Abstract]
Individually evaluated for impairment	2,061,000		1,263,000
Collectively evaluated for impairment	29,904,000		33,166,000
Lines of Credit [Member]
Loans receivable [Abstract]
Total loans	17,968,000		21,598,000
Less [Abstract]
Individually evaluated for impairment	454,000		304,000
Collectively evaluated for impairment	17,514,000		21,294,000
Commercial Real Estate [Member]
Loans receivable [Abstract]
Total loans	205,275,000		220,160,000
Less [Abstract]
Individually evaluated for impairment	6,174,000		4,672,000
Collectively evaluated for impairment	199,101,000		215,488,000
Commercial Non-Real Estate [Member]
Loans receivable [Abstract]
Total loans	9,358,000		8,583,000
Less [Abstract]
Individually evaluated for impairment	303,000		0
Collectively evaluated for impairment	9,055,000		8,583,000
Home Equity [Member]
Loans receivable [Abstract]
Total loans	28,966,000		30,339,000
Less [Abstract]
Individually evaluated for impairment	1,638,000		1,777,000
Collectively evaluated for impairment	27,328,000		28,562,000
Consumer [Member]
Loans receivable [Abstract]
Total loans	1,061,000		1,185,000
Less [Abstract]
Individually evaluated for impairment	13,000		0
Collectively evaluated for impairment	$ 1,048,000		$ 1,185,000