Loans and Allowance for Loan Losses (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Impaired loans:
Impaired loans (with allocated allowance for losses)	$ 3,399		$ 3,399		$ 31
Impaired loans with no allowance for loan losses	5,177		5,177		7,026
Total impaired loans	8,576		8,576		7,057
Unpaid principal balance of impaired loans	8,576		8,576		7,057
Additional provisions for impaired loan losses	522		522		19
Average recorded investment in impaired loans	7,865	8,511	7,533	8,029
Interest income recognized on impaired loans	100	106	340	359
Nonperforming loans:
Nonaccrual loans	8,375		8,375		207
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)	197		197		6,819
Total nonperforming loans	8,572		8,572		7,026
Commercial Business [Member]
Impaired loans:
Impaired loans (with allocated allowance for losses)
Impaired loans with no allowance for loan losses
Total impaired loans
Unpaid principal balance of impaired loans
Additional provisions for impaired loan losses
Average recorded investment in impaired loans		319		222
Interest income recognized on impaired loans				3
Nonperforming loans:
Nonaccrual loans
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)
Total nonperforming loans
Commercial Real Estate [Member]
Impaired loans:
Impaired loans (with allocated allowance for losses)	2,999		2,999
Impaired loans with no allowance for loan losses	3,673		3,673		5,258
Total impaired loans	6,672		6,672		5,258
Unpaid principal balance of impaired loans	6,672		6,672		5,258
Additional provisions for impaired loan losses	425		425
Average recorded investment in impaired loans	5,935	5,523	5,596	5,335
Interest income recognized on impaired loans	81	77	282	275
Nonperforming loans:
Nonaccrual loans	6,672		6,672
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)					5,258
Total nonperforming loans	6,672		6,672		5,258
One-to-Four Family [Member]
Impaired loans:
Impaired loans (with allocated allowance for losses)	388		388		16
Impaired loans with no allowance for loan losses	1,496		1,496		1,741
Total impaired loans	1,884		1,884		1,757
Unpaid principal balance of impaired loans	1,884		1,884		1,757
Additional provisions for impaired loan losses	94		94		14
Average recorded investment in impaired loans	1,908	2,516	1,906	2,314
Interest income recognized on impaired loans	19	28	57	74
Nonperforming loans:
Nonaccrual loans	1,691		1,691		207
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)	183		183		1,497
Total nonperforming loans	1,874		1,874		1,704
Home Equity [Member]
Impaired loans:
Impaired loans (with allocated allowance for losses)
Impaired loans with no allowance for loan losses					12
Total impaired loans					12
Unpaid principal balance of impaired loans					12
Additional provisions for impaired loan losses
Average recorded investment in impaired loans		132	6	123
Interest income recognized on impaired loans		1		5
Nonperforming loans:
Nonaccrual loans
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)
Total nonperforming loans
Consumer [Member]
Impaired loans:
Impaired loans (with allocated allowance for losses)	12		12		15
Impaired loans with no allowance for loan losses	8		8		15
Total impaired loans	20		20		30
Unpaid principal balance of impaired loans	20		20		30
Additional provisions for impaired loan losses	3		3		5
Average recorded investment in impaired loans	22	21	25	35
Interest income recognized on impaired loans			1	2
Nonperforming loans:
Nonaccrual loans	12		12
Loans past due 90 days and still accruing
Troubled debt restructurings (not included in nonaccrual loans)	14		14		64
Total nonperforming loans	$ 26		$ 26		$ 64