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Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Deferred tax assets |  |
Allowance for loan losses | $ 4,640 | $ 5,005
Deferred compensation | 1,762 | 1,617
Intangible assets | 187 | 224
Pension costs | 277 | 232
Other | 102 | 99
Deferred tax asset | 6,968 | 7,177
Deferred tax liabilities |  |
Tax depreciation in excess of book depreciation | (97) | (95)
Discount accretion on securities | (58) | (59)
Purchase accounting adjustments | (1,091) | (1,340)
FHLB stock dividends | (1,705) | (1,705)
Unrealized gain on securities available for sale | (1,035) | (1,831)
Other | (256) | (200)
Deferred tax liability | (4,242) | (5,230)
Net deferred tax asset | $ 2,726 | $ 1,947

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- Definition The amount as of the balance sheet date of the estimated future tax effects attributable to Federal Home Loan Bank (FHLB) stock. Federal Home Loan Bank stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the provision for loan losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 + Details
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