Credit Quality of Loans and Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012	Dec. 31, 2012
Activity in the allowance for loan losses by portfolio segment
Beginning balance	$ 2,987		$ 3,592	$ 3,328		$ 3,854
Provision (credit) charged to expense	76		225	(55)		618
Losses Charged Off	(30)		(22)	(246)		(716)
Recoveries	9		17	15		56
Ending balance	3,042		3,592	3,042		3,592
Ending balances: Allowance for loan losses
Individually evaluated for impairment	1,293			1,293			1,422
Collectively evaluated for impairment	1,749			1,749			1,906
Ending balances: Loans
Individually evaluated for impairment	11,789			11,789			12,900
Collectively evaluated for impairment	254,799			254,799			241,493
Loans Receivable, gross	266,588			266,588			254,393
One-to-four family residential
Activity in the allowance for loan losses by portfolio segment
Beginning balance	1,239		1,082	1,122		1,128
Provision (credit) charged to expense	(84)		92	71		95
Losses Charged Off	(30)		(21)	(68)		(109)
Recoveries	8		2	8		41
Ending balance	1,133		1,155	1,133		1,155
Ending balances: Allowance for loan losses
Individually evaluated for impairment	355			355			248
Collectively evaluated for impairment	778			778			874
Ending balances: Loans
Individually evaluated for impairment	6,913			6,913			6,878
Collectively evaluated for impairment	160,359			160,359			154,032
Loans Receivable, gross	167,272	[1]		167,272	[1]		160,910	[1]
All other mortgage loans
Activity in the allowance for loan losses by portfolio segment
Beginning balance	1,557		2,362	1,925		2,547
Provision (credit) charged to expense	150		117	(42)		534
Losses Charged Off			(1)	(176)		(603)
Recoveries			1			1
Ending balance	1,707		2,479	1,707		2,479
Ending balances: Allowance for loan losses
Individually evaluated for impairment	869			869			1,074
Collectively evaluated for impairment	838			838			851
Ending balances: Loans
Individually evaluated for impairment	4,727			4,727			5,837
Collectively evaluated for impairment	82,394			82,394			71,884
Loans Receivable, gross	87,121	[1]		87,121	[1]		77,721	[1]
Commercial business loans
Activity in the allowance for loan losses by portfolio segment
Beginning balance	185		143	275		169
Provision (credit) charged to expense	16		14	(76)		(12)
Losses Charged Off
Recoveries			14	2		14
Ending balance	201		171	201		171
Ending balances: Allowance for loan losses
Individually evaluated for impairment	69			69			100
Collectively evaluated for impairment	132			132			175
Ending balances: Loans
Individually evaluated for impairment	149			149			185
Collectively evaluated for impairment	10,825			10,825			14,060
Loans Receivable, gross	10,974	[1]		10,974	[1]		14,245	[1]
Consumer loans
Activity in the allowance for loan losses by portfolio segment
Beginning balance	6		5	6		10
Provision (credit) charged to expense	(6)		2	(8)		1
Losses Charged Off				(2)		(4)
Recoveries	1			5
Ending balance	1		7	1		7
Ending balances: Allowance for loan losses
Individually evaluated for impairment
Collectively evaluated for impairment	1			1			6
Ending balances: Loans
Individually evaluated for impairment
Collectively evaluated for impairment	1,221			1,221			1,517
Loans Receivable, gross	$ 1,221	[1]		$ 1,221	[1]		$ 1,517	[1]

[1] * Ratings are generally assigned to consumer and residential mortgage loans on a "pass" or "fail" basis, where "fail" results in a substandard classification. Commercial loans, both secured by real estate or other assets or unsecured, are analyzed in accordance with an analytical matrix codified in the Bank's loan policy that produces a risk rating as described below. Risk 1 is unquestioned credit quality for any credit product. Loans are secured by cash and near cash collateral with immediate access to proceeds. Risk 2 is very low risk with strong credit and repayment sources. Borrower is well capitalized in a stable industry, financial ratios exceed peers and financial trends are positive. Risk 3 is very favorable risk with highly adequate credit strength and repayment sources. Borrower has good overall financial condition and adequate capitalization. Risk 4 is acceptable, average risk with adequate credit strength and repayment sources. Collateral positions must be within Bank policies. Risk 5 or "Special Mention," also known as "watch," has potential weakness that deserves Management's close attention. This risk includes loans where the borrower has developed financial uncertainties or the borrower is resolving the financial uncertainties. Bank credits have been secured or negotiations will be ongoing to secure further collateral. Risk 6 or "Substandard" loans are inadequately protected by the current net worth and paying capacity of the borrower or of the collateral pledged. This risk category contains loans that exhibit a weakening of the borrower's credit strength with limited credit access and all non-performing loans. Risk 7 or "Doubtful" loans are significantly under protected by the current net worth and paying capacity of the borrower or of the collateral pledged. This risk category contains loans that are likely to experience a loss of some magnitude, but where the amount of the expected loss is not known with enough certainty to allow for an accurate calculation of a loss amount for charge-off. This category is considered to be temporary until a charge-off amount can be reasonably determined.