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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Taxes |  |  |
Federal corporate income tax rate | 21.00% | 21.00% | 21.00%
Deferred tax asset |  |  |
Allowance for loan losses and OREO losses | $ 9,743 | $ 8,227 |
Nonqualified defined contribution plan | 3,595 | 3,247 |
Lease liabilities | 1,906 | 667 |
Fair value adjustments related to acquisition | 1,716 | 1,053 |
Share-based compensation | 920 | 863 |
Reserve for indemnification losses | 879 | 645 |
Accrued expenses | 779 | 426 |
Cash flow hedges | 471 | 24 |
Other | 1,364 | 1,359 |
Deferred tax asset | 21,373 | 16,511 |
Deferred tax liability |  |  |
Goodwill and other intangible assets | (3,164) | (2,818) |
Right of use assets | (1,868) | (664) |
Depreciation | (1,272) | (972) |
Net unrealized gain on securities available for sale | (1,169) | (415) |
Defined benefit plan | (345) | (423) |
Deferred tax liability | (7,818) | (5,292) |
Net deferred tax asset | $ 13,555 | $ 11,219 |

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