Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		$ 8,522	$ 8,879
Charge-offs		(959)	(1,673)
Recoveries		(95)
Provision for loan losses	1,300		1,406
Balance, at the end of the period	8,517	7,658	8,517
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	44		44
Amount of allowance attributed to: General portfolio allocation	8,473	7,658	8,473
Loans individually evaluated for impairment	19,885	5,193	19,885
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.22%
Loans collectively evaluated for impairment	691,307	793,159	691,307
General reserves to total loans collectively evaluated for impairment (as a percent)		0.97%	1.23%
Total gross loans	711,192	798,352	711,192	739,254
Total allowance to gross loans (as a percent)		0.96%	1.20%
Multi-Family and Non-Owner Occupied Commercial Real Estate Loans
Allowance for Loan Losses
Actual trailing period considered for determination of allowance for loan losses factor		24 months
Trailing period considered for determination of allowance for loan losses factor		12 months
Annualized trailing period considered for determination of allowance for loan losses factor		6 months
Period considered for comparison of allowance for loan losses factor		10 years
Period considered for comparison of entity's allowance for loan losses factor		15 years
Trailing period considered for comparison of allowance for loan losses factor		12 months
Owner Occupied Commercial Real Estate Loans, Commercial and Industrial Loans and SBA Loans
Allowance for Loan Losses
Actual trailing period considered for determination of allowance for loan losses factor		24 months
Trailing period considered for determination of allowance for loan losses factor		12 months
Annualized trailing period considered for determination of allowance for loan losses factor		6 months
Period considered for comparison of allowance for loan losses factor		10 years
Period considered for comparison of entity's allowance for loan losses factor		15 years
Trailing period considered for comparison of allowance for loan losses factor		12 months
One-to-Four Family and Consumer Loans
Allowance for Loan Losses
Actual trailing period considered for determination of allowance for loan losses factor		24 months
Trailing period considered for determination of allowance for loan losses factor		12 months
Annualized trailing period considered for determination of allowance for loan losses factor		6 months
Period considered for comparison of allowance for loan losses factor		10 years
Period considered for comparison of entity's allowance for loan losses factor		15 years
Trailing period considered for comparison of allowance for loan losses factor		12 months
Multi-family
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		2,281	2,730
Charge-offs			(321)
Provision for loan losses		3	47
Balance, at the end of the period	2,456	2,284	2,456
Other disclosures
Amount of allowance attributed to: General portfolio allocation	2,456	2,284	2,456
Loans individually evaluated for impairment	4,149	1,404	4,149
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	227,455	182,338	227,455
General reserves to total loans collectively evaluated for impairment (as a percent)		1.25%	1.08%
Total gross loans	231,604	183,742	231,604	193,830
Total allowance to gross loans (as a percent)		1.24%	1.06%
Commercial non-owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		1,287	1,580
Charge-offs		(88)
Provision for loan losses		468	(90)
Balance, at the end of the period	1,490	1,667	1,490
Other disclosures
Amount of allowance attributed to: Specifically evaluated impaired loans	44		44
Amount of allowance attributed to: General portfolio allocation	1,446	1,667	1,446
Loans individually evaluated for impairment	3,427	2,095	3,427
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	1.28%
Loans collectively evaluated for impairment	151,992	240,605	151,992
General reserves to total loans collectively evaluated for impairment (as a percent)		0.69%	0.95%
Total gross loans	155,419	242,700	155,419	164,341
Total allowance to gross loans (as a percent)		0.69%	0.96%
One-to-four family
Allowance for Loan Losses
Period considered for comparison of allowance for loan losses factor		10 years
Period considered for comparison of entity's allowance for loan losses factor		15 years
Trailing period considered for comparison of allowance for loan losses factor		12 months
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		931	332
Charge-offs		(305)	(274)
Recoveries		(5)	1
Provision for loan losses		(328)	265
Balance, at the end of the period	324	303	324
Other disclosures
Amount of allowance attributed to: General portfolio allocation	324	303	324
Loans individually evaluated for impairment	1,567	667	1,567
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	62,983	56,027	62,983
General reserves to total loans collectively evaluated for impairment (as a percent)		0.54%	0.51%
Total gross loans	64,550	56,694	64,550	60,027
Total allowance to gross loans (as a percent)		0.53%	0.50%
Construction
Other disclosures
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%
Loans collectively evaluated for impairment		281
General reserves to total loans collectively evaluated for impairment (as a percent)		0.00%
Total gross loans		281
Total allowance to gross loans (as a percent)		0.00%
Land
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		39
Charge-offs			(161)
Provision for loan losses		(39)	161
Other disclosures
Loans individually evaluated for impairment	2,523		2,523
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	6,229	11,191	6,229
General reserves to total loans collectively evaluated for impairment (as a percent)		0.00%	0.00%
Total gross loans	8,752	11,191	8,752	6,438
Total allowance to gross loans (as a percent)		0.00%	0.00%
Commercial owner occupied
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		1,119	1,687
Charge-offs		(265)	(98)
Provision for loan losses		222	(53)
Balance, at the end of the period	1,536	1,076	1,536
Other disclosures
Amount of allowance attributed to: General portfolio allocation	1,536	1,076	1,536
Loans individually evaluated for impairment	5,124	478	5,124
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	142,062	149,950	142,062
General reserves to total loans collectively evaluated for impairment (as a percent)		0.72%	1.08%
Total gross loans	147,186	150,428	147,186	152,299
Total allowance to gross loans (as a percent)		0.72%	1.04%
Commercial and industrial
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		1,361	2,356
Charge-offs		(191)	(712)
Recoveries		2
Provision for loan losses		78	315
Balance, at the end of the period	1,959	1,250	1,959
Other disclosures
Amount of allowance attributed to: General portfolio allocation	1,959	1,250	1,959
Loans individually evaluated for impairment	2,143		2,143
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	68,601	84,191	68,601
General reserves to total loans collectively evaluated for impairment (as a percent)		1.48%	2.86%
Total gross loans	70,744	84,191	70,744	86,684
Total allowance to gross loans (as a percent)		1.48%	2.77%
Warehouse
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		1,347
Provision for loan losses		(439)	602
Balance, at the end of the period	602	908	602
Other disclosures
Amount of allowance attributed to: General portfolio allocation	602	908	602
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	21,758	61,111	21,758
General reserves to total loans collectively evaluated for impairment (as a percent)		1.49%	2.77%
Total gross loans	21,758	61,111	21,758	67,518
Total allowance to gross loans (as a percent)		1.49%	2.77%
SBA
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		80	145
Charge-offs		(109)	(52)
Recoveries		77	5
Provision for loan losses		103	(1)
Balance, at the end of the period	97	151	97
Other disclosures
Amount of allowance attributed to: General portfolio allocation	97	151	97
Loans individually evaluated for impairment	930	549	930
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	3,752	3,446	3,752
General reserves to total loans collectively evaluated for impairment (as a percent)		4.38%	2.59%
Total gross loans	4,682	3,995	4,682	4,727
Total allowance to gross loans (as a percent)		3.78%	2.07%
Other loans
Allocation of allowance as well as the activity in allowance
Balance, at the beginning of the period		77	49
Charge-offs		(1)	(55)
Recoveries		11	5
Provision for loan losses		(68)	54
Balance, at the end of the period	53	19	53
Other disclosures
Amount of allowance attributed to: General portfolio allocation	53	19	53
Loans individually evaluated for impairment	22		22
Specific reserves to total loans individually evaluated for impairment (as a percent)		0.00%	0.00%
Loans collectively evaluated for impairment	6,475	4,019	6,475
General reserves to total loans collectively evaluated for impairment (as a percent)		0.47%	0.82%
Total gross loans	$ 6,497	$ 4,019	$ 6,497	$ 3,390
Total allowance to gross loans (as a percent)		0.47%	0.82%