The aggregate carrying amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 4, 5, 6, 7, 9, 12, 28, 29

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 7

-Subparagraph a

-Article 9

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 65

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher OTS

-Name Federal Regulation (FR)

-Number Title 12

-Section 563c.102

-Paragraph 8

-Subparagraph h

-Chapter V

-Subsection I

-LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 35

-Paragraph 49

-URI http://asc.fasb.org/extlink&oid=16382521&loc=d3e3084-111518

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 948

-SubTopic 310

-Section 30

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6490209&loc=d3e48214-111002

+ Details

Loans - Summary of Mortgage Loan by Credit Quality Indicators (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	$ 733,940		$ 773,558
Gross Loans	7,088	16,224	14,178
Single family residential revolving open end loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	59,715		58,971
Single family residential revolving open end loans [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	58,803		58,128
Single family residential revolving open end loans [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	912		843
Single family residential closed end, first lien [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	105,069		119,580
Single family residential closed end, first lien [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	100,197		111,623
Single family residential closed end, first lien [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	4,872		7,957
Single family residential closed end junior lien [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	5,509		6,953
Single family residential closed end junior lien [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	5,232		6,482
Single family residential closed end junior lien [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	277		471
Total single family residential loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	170,293		185,504
Total single family residential loans [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	164,232		176,233
Total single family residential loans [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	6,061		9,271
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	9,121		7,326
Other [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	9,121		7,326
Credit cards [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	19		195
Credit cards [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans			179
Credit cards [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	19		16
Consumer - others [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	51,352		52,576
Consumer - others [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	51,098		52,103
Consumer - others [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	254		473
Total consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	51,371
Gross Loans			52,771
Total consumer [Member] \| Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	51,098
Gross Loans			52,282
Total consumer [Member] \| Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
Gross Loans	273
Gross Loans			$ 489