Loans - Components of Loans Receivable in Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Real estate loans
Total loans, gross	$ 567,511	$ 545,839
Deferred loan cost, net of fees	(510)	(286)
Less allowance for loan losses	(5,487)	(6,289)	$ (8,100)
Total loans	$ 561,514	$ 539,264
Loans and Leases Receivable in Percentage	100.00%	100.00%
Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 457,586	$ 457,247
Loans and Leases Receivable in Percentage	80.70%	83.80%
Consumer Loans [Member]
Real estate loans
Total loans, gross	$ 18,375	$ 14,438
Less allowance for loan losses	$ (350)	$ (494)
Loans and Leases Receivable in Percentage	3.20%	2.60%
Commercial Loans [Member]
Real estate loans
Total loans, gross	$ 91,550	$ 74,154
Less allowance for loan losses	$ (495)	$ (504)
Loans and Leases Receivable in Percentage	16.10%	13.60%
Total Other Loans [Member]
Real estate loans
Total loans, gross	$ 109,925	$ 88,592
Loans and Leases Receivable in Percentage	19.30%	16.20%
One-to-Four Family Mortgages [Member]
Real estate loans
Total loans, gross	$ 146,370	$ 150,551
One-to-Four Family Mortgages [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 146,370	$ 150,551
Loans and Leases Receivable in Percentage	25.80%	27.60%
Second Mortgages (Closed End) [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 1,798	$ 2,102
Loans and Leases Receivable in Percentage	0.30%	0.40%
Home Equity Line of Credit [Member]
Real estate loans
Total loans, gross	$ 32,976	$ 34,238
Home Equity Line of Credit [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 32,976	$ 34,238
Loans and Leases Receivable in Percentage	5.80%	6.30%
Multi-Family [Member]
Real estate loans
Total loans, gross	$ 23,366	$ 25,991
Multi-Family [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 23,366	$ 25,991
Loans and Leases Receivable in Percentage	4.10%	4.80%
Construction [Member]
Real estate loans
Total loans, gross	$ 32,669	$ 24,241
Construction [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 32,669	$ 24,241
Loans and Leases Receivable in Percentage	5.80%	4.40%
Land [Member]
Real estate loans
Total loans, gross	$ 22,654	$ 26,654
Land [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 22,654	$ 26,654
Loans and Leases Receivable in Percentage	4.00%	4.90%
Farmland [Member]
Real estate loans
Total loans, gross	$ 40,639	$ 42,874
Farmland [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 40,639	$ 42,874
Loans and Leases Receivable in Percentage	7.20%	7.80%
Non-Residential Real Estate [Member]
Real estate loans
Total loans, gross	$ 157,114	$ 150,596
Non-Residential Real Estate [Member] \| Real Estate Loans [Member]
Real estate loans
Total loans, gross	$ 157,114	$ 150,596
Loans and Leases Receivable in Percentage	27.70%	27.60%

Loans and leases receivable in percentage.

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Real estate loans.

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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 interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts 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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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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