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Loans - Summary of Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Real estate loans:
Loans	$ 486,067	$ 438,999
Allowance for loan losses	(5,321)	(5,524)	$ (6,718)
Loans, net	480,746	433,475
Construction and Land Development [Member]
Real estate loans:
Loans	34,699	33,135
Allowance for loan losses	(441)	(1,532)	(1,403)
Secured by 1-4 Family Residential [Member]
Real estate loans:
Loans	198,763	189,286
Allowance for loan losses	(1,019)	(939)	(1,204)
Other Real Estate Loans [Member]
Real estate loans:
Loans	211,210	181,447
Commercial and Industrial [Member]
Real estate loans:
Loans	29,981	24,048
Allowance for loan losses	(380)	(306)	(310)
Consumer and Other Loans [Member]
Real estate loans:
Loans	11,414	11,083
Allowance for loan losses	$ (339)	$ (213)	$ (143)

X

- Definition

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.

+ References

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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.

+ References

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+ References

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