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Income Taxes - Net Deferred Tax Assets (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Deferred Tax Assets |  |
Allowance for loan losses | $ 1,809 | $ 1,878
Allowance for other real estate owned |  | 76
Unfunded pension liability |  | 719
Gain on other real estate owned |  | 672
Securities available for sale | 447 | 102
Accrued pension | 689 | 568
Core deposit intangible | 371 | 179
Unvested stock-based compensation | 19 | 11
Limited partnership investments | 17 |
Loan origination fees, net | 48 |
Deferred Tax Assets, Gross, Total | 3,400 | 4,205
Deferred Tax Liabilities |  |
Depreciation | 708 | 693
Discount accretion | 2 | 2
Loan origination costs, net |  | 18
Deferred Tax Liabilities, Total | 710 | 713
Net deferred tax assets | $ 2,690 | $ 3,492

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