Fair Value Measurements (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financial Instruments - Assets, Carrying Amount
Loans	$ 120,088	$ 123,414
Financial Instruments - Liabilities, Carrying Amount
Time deposits	113,745	117,167
Securities sold under agreements to repurchase	5,449	6,280
Subordinated debentures	12,372	12,372
Financial Instruments - Assets, Fair Value
Loans	120,040	123,553
Financial Instruments - Liabilities, Fair Value
Time deposits	114,166	117,723
Securities sold under agreements to repurchase	5,449	6,280
Subordinated debentures	12,372	12,372
Level 2
Financial Instruments - Liabilities, Fair Value
Time deposits	114,166	117,723
Securities sold under agreements to repurchase	5,449	6,280
Subordinated debentures	12,372	12,372
Level 3
Financial Instruments - Assets, Fair Value
Loans	$ 120,040	$ 123,553

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Time deposits, Fair Value Disclosure

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Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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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 and loans held for sale.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of notes payable.

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Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement.

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Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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