Note 4. Loans Receivable (Detail) - Financing Receivable by Credit Quality Indicators (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Financing Receivables	$ 350,016	$ 353,508
Pass [Member] | One-to-Four-Family Residential [Member]
Financing Receivables	16,163	24,300
Pass [Member] | Home Equity and Second Mortgage [Member]
Financing Receivables	406	558
Pass [Member] | Multifamily Residential [Member]
Financing Receivables	7,203	4,736
Pass [Member] | Commercial Real Estate Loans [Member]
Financing Receivables	92,695	55,997
Pass [Member] | One-to-Four-Family Construction [Member]
Financing Receivables	1,477
Pass [Member] | Other Construction and Land [Member]
Financing Receivables	6,853	9,508
Pass [Member] | Commercial Loans [Member]
Financing Receivables	16,415	5,579
Pass [Member] | Consumer Loans [Member]
Financing Receivables	63	626
Pass [Member]
Financing Receivables	141,275	101,304
Special Mention [Member] | One-to-Four-Family Residential [Member]
Financing Receivables	10,764	13,888
Special Mention [Member] | Home Equity and Second Mortgage [Member]
Financing Receivables	182	487
Special Mention [Member] | Multifamily Residential [Member]
Financing Receivables	4,495	6,655
Special Mention [Member] | Commercial Real Estate Loans [Member]
Financing Receivables	10,134	9,174
Special Mention [Member] | One-to-Four-Family Construction [Member]
Financing Receivables	690
Special Mention [Member] | Other Construction and Land [Member]
Financing Receivables	1,078	2,908
Special Mention [Member] | Commercial Loans [Member]
Financing Receivables	346	1,105
Special Mention [Member] | Consumer Loans [Member]
Financing Receivables		13
Special Mention [Member]
Financing Receivables	27,689	34,230
Substandard [Member] | One-to-Four-Family Residential [Member]
Financing Receivables	12,454	27,877
Substandard [Member] | Home Equity and Second Mortgage [Member]
Financing Receivables	1,043	1,569
Substandard [Member] | Multifamily Residential [Member]
Financing Receivables	1,460	6,203
Substandard [Member] | Commercial Real Estate Loans [Member]
Financing Receivables	11,969	29,020
Substandard [Member] | One-to-Four-Family Construction [Member]
Financing Receivables	250	1,463
Substandard [Member] | Other Construction and Land [Member]
Financing Receivables	10,241	8,696
Substandard [Member] | Commercial Loans [Member]
Financing Receivables	511	521
Substandard [Member] | Consumer Loans [Member]
Financing Receivables	114	191
Substandard [Member]
Financing Receivables	38,042	75,540
Not Rated [Member] | One-to-Four-Family Residential [Member]
Financing Receivables	121,700	117,093
Not Rated [Member] | Home Equity and Second Mortgage [Member]
Financing Receivables	8,291	9,888
Not Rated [Member] | Multifamily Residential [Member]
Financing Receivables	96	2,882
Not Rated [Member] | Commercial Real Estate Loans [Member]
Financing Receivables	1,908	1,729
Not Rated [Member] | One-to-Four-Family Construction [Member]
Financing Receivables	214	928
Not Rated [Member] | Other Construction and Land [Member]
Financing Receivables	4,081	2,331
Not Rated [Member] | Commercial Loans [Member]
Financing Receivables	259	398
Not Rated [Member] | Consumer Loans [Member]
Financing Receivables	6,461	7,185
Not Rated [Member]
Financing Receivables	143,010	142,434
One-to-Four-Family Residential [Member]
Financing Receivables	161,081	183,158
Home Equity and Second Mortgage [Member]
Financing Receivables	9,922	12,502
Multifamily Residential [Member]
Financing Receivables	13,254	20,476
Commercial Real Estate Loans [Member]
Financing Receivables	116,706	95,920
One-to-Four-Family Construction [Member]
Financing Receivables	2,631	2,391
Other Construction and Land [Member]
Financing Receivables	22,253	23,443
Commercial Loans [Member]
Financing Receivables	17,531	7,603
Consumer Loans [Member]
Financing Receivables	$ 6,638	$ 8,015