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Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Deferred Tax Assets, Operating Loss Carryforwards | $ 4,663 | $ 0 |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 35.00% | 35.00%
Current Federal Tax Expense (Benefit) |  | $ 1,200 |
Investment in qualified affordable housing tax credits amortization | $ 7,322 | 10,278 | $ 7,300
Other Information Pertaining to Income Taxes | 1 |  |
Deferred tax assets: |  |  |
Allowance for loan losses | $ 10,818 | 10,498 |
Accumulated other comprehensive loss – Pension plan | 7,888 | 7,098 |
Accumulated other comprehensive loss – Unrealized losses on securities | 5,347 | 946 |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation | 2,896 | 2,744 |
Deferred compensation | 1,028 | 1,327 |
Net deferred loan fees | 1,221 | 1,115 |
Deferred contract bonus | 556 | 645 |
Nonvested equity-based compensation | 1,567 | 1,069 |
Fixed assets | 206 | 877 |
Deferred Tax Assets, Operating Loss Carryforwards | 4,663 | 0 |
Other | 824 | 1,230 |
Total deferred tax assets | 37,014 | 27,549 |
Deferred tax liabilities: |  |  |
Deferred investment income | 6,120 | 6,120 |
Pension Plan | 19,133 | 19,076 |
MSRs | 2,137 | 2,034 |
Partnership adjustments | 630 | 460 |
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost | 769 | 166 |
Other | 210 | 198 |
Total deferred tax liabilities | 28,999 | 28,054 |
Net deferred tax asset (liability) |  | (505) |
Deferred Tax Assets, Net | 8,015 |  |
Change in Accounting Method Accounted for as Change in Estimate [Member] |  |  |
Investment in qualified affordable housing tax credits amortization |  | $ 3,100 |
Domestic Tax Authority [Member] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | 19,400 |  |
Deferred tax assets: |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | 19,400 |  |
State and Local Jurisdiction [Member] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | 19,300 |  |
Deferred tax assets: |  |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 19,300 |  |

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