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Income Tax - Reconciliation of Deferred Tax Assets & Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Assets |  |
Allowance for loan losses | $ 3,396 | $ 5,581
Net operating loss (from acquisitions) | 1,658 | 2,368
Director and employee benefits | 2,276 | 3,124
Unrealized loss on AFS securities and fair value hedge | 1,147 | 937
Accrued Pension | 852 | 1,323
Fair value adjustment on acquisitions | 1,087 | 2,340
Other | 1,083 | 1,593
Total assets | 11,499 | 17,266
Liabilities |  |
Depreciation | (1,680) | (1,916)
State tax | (210) | (341)
Federal Home Loan Bank stock dividends | (339) | (474)
Difference in basis of intangible assets | (2,831) | (4,654)
Other | (125) | (431)
Total liabilities | (5,185) | (7,816)
Valuation allowance | (1,613) | (2,018)
Net deferred tax asset | $ 4,701 | $ 7,432

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