Loans, Allowance for loan losses (Details) (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
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	$ 1,530		$ 1,530		$ 1,254
Allowance for loan losses, collectively evaluated for impairment	2,803		2,803		3,201
Allowance for loan losses	4,333		4,333		4,455
Loans receivables, individually evaluated for impairment	13,357		13,357		13,619
Loans receivable, collectively evaluated for impairment	298,355		298,355		288,690
Loans receivable	311,712		311,712		302,309
Allowance for loan losses [Roll Forward]
Beginning Allowance	4,449	4,363	4,455	4,436
Charge-offs	(1,197)	(1,719)	(4,048)	(3,919)
Recoveries	6	63	251	140
Provision	1,075	1,300	3,675	3,350
Ending Allowance	4,333	4,007	4,333	4,007
One-to Four- Family [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	837		837		541
Allowance for loan losses, collectively evaluated for impairment	938		938		576
Allowance for loan losses	1,775		1,775		1,117
Loans receivables, individually evaluated for impairment	6,766		6,766		8,260
Loans receivable, collectively evaluated for impairment	87,575		87,575		88,045
Loans receivable	94,341		94,341		96,305
Allowance for loan losses [Roll Forward]
Beginning Allowance	1,676	827	1,117	909
Charge-offs	(609)	(261)	(2,008)	(794)
Recoveries	0	0	4	12
Provision	708	407	2,662	846
Ending Allowance	1,775	973	1,775	973
Home Equity [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	280		280		447
Allowance for loan losses, collectively evaluated for impairment	786		786		979
Allowance for loan losses	1,066		1,066		1,426
Loans receivables, individually evaluated for impairment	1,794		1,794		1,784
Loans receivable, collectively evaluated for impairment	34,089		34,089		37,872
Loans receivable	35,883		35,883		39,656
Allowance for loan losses [Roll Forward]
Beginning Allowance	1,212	1,605	1,426	1,480
Charge-offs	(216)	(352)	(951)	(1,144)
Recoveries	0	1	132	7
Provision	70	(211)	459	700
Ending Allowance	1,066	1,043	1,066	1,043
Commercial and Multifamily [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	74		74		38
Allowance for loan losses, collectively evaluated for impairment	566		566		931
Allowance for loan losses	640		640		969
Loans receivables, individually evaluated for impairment	2,148		2,148		2,003
Loans receivable, collectively evaluated for impairment	117,790		117,790		104,013
Loans receivable	119,938		119,938		106,016
Allowance for loan losses [Roll Forward]
Beginning Allowance	647	1,213	969	664
Charge-offs	0	(807)	(503)	(1,311)
Recoveries	0	16	83	34
Provision	(7)	667	91	1,702
Ending Allowance	640	1,089	640	1,089
Construction and Land [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	25		25		37
Allowance for loan losses, collectively evaluated for impairment	135		135		68
Allowance for loan losses	160		160		105
Loans receivables, individually evaluated for impairment	653		653		902
Loans receivable, collectively evaluated for impairment	20,041		20,041		16,903
Loans receivable	20,694		20,694		17,805
Allowance for loan losses [Roll Forward]
Beginning Allowance	181		105
Charge-offs	(162)		(203)
Recoveries	0		0
Provision	141		258
Ending Allowance	160		160
Manufactured Homes [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	120		120		11
Allowance for loan losses, collectively evaluated for impairment	152		152		279
Allowance for loan losses	272		272		290
Loans receivables, individually evaluated for impairment	663		663		122
Loans receivable, collectively evaluated for impairment	16,347		16,347		18,322
Loans receivable	17,010		17,010		18,444
Allowance for loan losses [Roll Forward]
Beginning Allowance	336	273	290	294
Charge-offs	(46)	(82)	(106)	(283)
Recoveries	0	0	0	0
Provision	(18)	148	88	328
Ending Allowance	272	339	272	339
Other Consumer [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	41		41		48
Allowance for loan losses, collectively evaluated for impairment	133		133		165
Allowance for loan losses	174		174		213
Loans receivables, individually evaluated for impairment	97		97		101
Loans receivable, collectively evaluated for impairment	8,988		8,988		10,819
Loans receivable	9,085		9,085		10,920
Allowance for loan losses [Roll Forward]
Beginning Allowance	173	208	213	309
Charge-offs	(126)	(37)	(232)	(199)
Recoveries	6	8	22	48
Provision	121	25	171	46
Ending Allowance	174	204	174	204
Commercial Business Loans [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	153		153		132
Allowance for loan losses, collectively evaluated for impairment	82		82		122
Allowance for loan losses	235		235		254
Loans receivables, individually evaluated for impairment	1,236		1,236		447
Loans receivable, collectively evaluated for impairment	13,525		13,525		12,716
Loans receivable	14,761		14,761		13,163
Allowance for loan losses [Roll Forward]
Beginning Allowance	215	172	254	163
Charge-offs	(38)	(180)	(45)	(188)
Recoveries	0	38	10	39
Provision	58	191	16	207
Ending Allowance	235	221	235	221
Unallocated [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Allowance for loan losses, individually evaluated for impairment	0		0		0
Allowance for loan losses, collectively evaluated for impairment	11		11		81
Allowance for loan losses	11		11		81
Loans receivables, individually evaluated for impairment	0		0		0
Loans receivable, collectively evaluated for impairment	0		0		0
Loans receivable	0		0		0
Allowance for loan losses [Roll Forward]
Beginning Allowance	9	65	81	617
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision	2	73	(70)	(479)
Ending Allowance	11	138	11	138
Real Estate Loans [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	270,856		270,856		259,782
Real Estate Loans [Member] | One-to Four- Family [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	94,341		94,341		96,305
Real Estate Loans [Member] | Home Equity [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	35,883		35,883		39,656
Real Estate Loans [Member] | Commercial and Multifamily [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	119,938		119,938		106,016
Real Estate Loans [Member] | Construction and Land [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	20,694		20,694		17,805
Consumer Loans [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	26,095		26,095		29,364
Consumer Loans [Member] | Manufactured Homes [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	17,010		17,010		18,444
Consumer Loans [Member] | Other Consumer [Member]
Allowance for loan losses, allowance and recorded investment [Abstract]
Loans receivable	$ 9,085		$ 9,085		$ 10,920