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Income Taxes - Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred Tax Assets |  |
Allowance for loan losses | $ 1,878 | $ 2,284
Allowance for other real estate owned | 76 | 127
Unfunded pension liability | 719 | 732
Gain on other real estate owned | 672 | 639
Securities available for sale | 102 | 71
Accrued pension | 568 | 392
Core deposit intangible | 179 | 13
Unvested stock-based compensation | 11 |
Deferred Tax Assets, Gross, Total | 4,205 | 4,258
Deferred Tax Liabilities |  |
Depreciation | 693 | 604
Discount accretion | 2 | 2
Loan origination fees, net | 18 | 44
Deferred Tax Liabilities, Total | 713 | 650
Net deferred tax assets | $ 3,492 | $ 3,608

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