Loans and Allowance for Loan Losses (Loans) (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 416,185	$ 400,193
Net deferred loan origination fees and costs	213	382
Undisbursed portion of loans in process	(6,581)	(6,602)
Allowance for loan losses	(5,335)	(4,906)
Loans, net	404,482	389,067
Real estate mortgage \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	115,546	90,290
Real estate mortgage \| Commercial business loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	31,866	36,189
Real estate mortgage \| 1-4 family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	184,680	190,958
Real estate mortgage \| Multi-family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	27,148	23,879
Real estate mortgage \| Residential Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	11,918	10,748
Real estate mortgage \| Commercial Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	6,741	5,182
Real estate mortgage \| Land and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	10,588	12,320
Consumer \| Home equity loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	17,179	18,294
Consumer \| Auto Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	6,935	8,219
Consumer \| Other Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 3,584	$ 4,114

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 6

-Section L

-Subsection 1

+ Details

- Definition

Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

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

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

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

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Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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-Section 03

-Paragraph 7

-Article 9

+ Details

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References+ Details