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Loans Receivable and Allowance for Loan Losses - Summarizes Loans that were Modified in a Troubled Debt Restructuring (Detail) (USD $)	6 Months Ended
	Jun. 30, 2013 Relationships
Financing Receivable Modifications Number Of Contracts [Line Items]
Number of Relationships, Pre-Modification	2
Number of Relationships, Post-Modification	2
Pre-Modification Outstanding Recorded Investment	$ 4,730,324
Post-Modification Outstanding Recorded Investment	4,698,372
Construction to Permanent [Member]
Financing Receivable Modifications Number Of Contracts [Line Items]
Number of Relationships, Pre-Modification	2
Number of Relationships, Post-Modification	2
Pre-Modification Outstanding Recorded Investment	4,730,324
Post-Modification Outstanding Recorded Investment	$ 4,698,372

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Financing receivable post modification number of contracts.

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524

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