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

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Reflects the aggregate gross carrying amount of all commercial loans and leases held in portfolio, prior to deducting deferred income and the allowance for losses on commercial loans and leases.

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Reflects the aggregate gross carrying amount of all consumer loans and leases held in portfolio, prior to deducting deferred income and the allowance for losses on consumer loans and leases.

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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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Loans - Summary of Loans (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Real estate loans:
Commercial and industrial loans	$ 23,381	$ 22,803
Consumer and other loans	12,016	12,301
Total loans	359,533	357,093	382,339
Allowance for loan losses	(10,283)	(10,644)	(12,756)	(13,075)
Loans, net	349,250	346,449
Construction and Land Development [Member]
Real estate loans:
Real estate loans	33,876	34,060
Total loans	33,876	34,060
Secured by 1-4 Family Residential [Member]
Real estate loans:
Real estate loans	147,541	141,961
Total loans	147,541	141,961
Other Real Estate Loans [Member]
Real estate loans:
Real estate loans	142,719	145,968
Total loans	$ 142,719	$ 145,968