Loans, Credit Quality (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Recorded Investment [Line Items]
Total loans	$ 340,949	$ 329,301
One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	98,993	95,784
Home equity [Member]
Recorded Investment [Line Items]
Total loans	35,339	35,364
Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	133,178	133,620
Construction and land [Member]
Recorded Investment [Line Items]
Total loans	34,513	25,458
Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	15,576	16,232
Other consumer [Member]
Recorded Investment [Line Items]
Total loans	8,779	8,650
Commercial business [Member]
Recorded Investment [Line Items]
Total loans	14,571	14,193
Internally Assigned Grade [Member]
Recorded Investment [Line Items]
Total loans	340,949	329,301
Internally Assigned Grade [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	98,993	95,784
Internally Assigned Grade [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	35,339	35,364
Internally Assigned Grade [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	133,178	133,620
Internally Assigned Grade [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	34,513	25,458
Internally Assigned Grade [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	15,576	16,232
Internally Assigned Grade [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	8,779	8,650
Internally Assigned Grade [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	14,571	14,193
Internally Assigned Grade [Member] | Pass [Member]
Recorded Investment [Line Items]
Total loans	319,178	306,264
Internally Assigned Grade [Member] | Pass [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	87,345	84,685
Internally Assigned Grade [Member] | Pass [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	31,079	30,927
Internally Assigned Grade [Member] | Pass [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	131,399	130,721
Internally Assigned Grade [Member] | Pass [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	34,168	24,641
Internally Assigned Grade [Member] | Pass [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	14,260	14,898
Internally Assigned Grade [Member] | Pass [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	8,283	8,102
Internally Assigned Grade [Member] | Pass [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	12,644	12,290
Internally Assigned Grade [Member] | Watch [Member]
Recorded Investment [Line Items]
Total loans	15,750	15,563
Internally Assigned Grade [Member] | Watch [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	8,622	8,279
Internally Assigned Grade [Member] | Watch [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	2,927	3,064
Internally Assigned Grade [Member] | Watch [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	945	954
Internally Assigned Grade [Member] | Watch [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	345	347
Internally Assigned Grade [Member] | Watch [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	1,288	1,312
Internally Assigned Grade [Member] | Watch [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	469	520
Internally Assigned Grade [Member] | Watch [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	1,154	1,087
Internally Assigned Grade [Member] | Special Mention [Member]
Recorded Investment [Line Items]
Total loans	1,550	1,584
Internally Assigned Grade [Member] | Special Mention [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	437	490
Internally Assigned Grade [Member] | Special Mention [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	494	499
Internally Assigned Grade [Member] | Special Mention [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	592	595
Internally Assigned Grade [Member] | Special Mention [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Special Mention [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Special Mention [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Special Mention [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	27	0
Internally Assigned Grade [Member] | Substandard [Member]
Recorded Investment [Line Items]
Total loans	4,471	5,890
Internally Assigned Grade [Member] | Substandard [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	2,589	2,329
Internally Assigned Grade [Member] | Substandard [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	839	874
Internally Assigned Grade [Member] | Substandard [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	242	1,350
Internally Assigned Grade [Member] | Substandard [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	0	471
Internally Assigned Grade [Member] | Substandard [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	28	23
Internally Assigned Grade [Member] | Substandard [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	27	28
Internally Assigned Grade [Member] | Substandard [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	746	815
Internally Assigned Grade [Member] | Doubtful [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Doubtful [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | One-to four- family [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Home equity [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Commercial and multifamily [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Construction and land [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Manufactured homes [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Other consumer [Member]
Recorded Investment [Line Items]
Total loans	0	0
Internally Assigned Grade [Member] | Loss [Member] | Commercial business [Member]
Recorded Investment [Line Items]
Total loans	$ 0	$ 0