Loans - Summary of Composition of Loans (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Summary of balances of loans
Total loans	$ 902,345	$ 766,296
Net unamortized deferred loan (fees) costs	(252)	200
Allowance for loan losses	(7,902)	(7,770)
Loans receivable, net	894,191	758,726
Construction, land and land development
Summary of balances of loans
Total loans	108,767	66,042
Farmland
Summary of balances of loans
Total loans	708	923
Commercial mortgages (non-owner occupied)
Summary of balances of loans
Total loans	180,074	146,757
Commercial mortgages (owner occupied)
Summary of balances of loans
Total loans	87,241	80,052
Residential first mortgages
Summary of balances of loans
Total loans	298,894	269,365
Residential revolving and junior mortgages
Summary of balances of loans
Total loans	38,313	46,498
Commercial and industrial
Summary of balances of loans
Total loans	164,608	114,093
Consumer
Summary of balances of loans
Total loans	$ 23,740	$ 42,566

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 of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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