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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Summary of Change in Carrying Amount of Goodwill | The change in the carrying amount of goodwill for the years ended December 31, 2018 and 2017 is as follows:
| 2018 |  | 2017
Balance, beginning of year | $ | 38,730 |  |  | $ | 38,730 |
Acquired during the year | 0 |  |  | 0 |
Balance, end of year | $ | 38,730 |  |  | $ | 38,730 |
Estimated Amortization Expense of Core Deposit Intangible Assets | The estimated remaining amortization expense of core deposit intangible assets is as follows:
2019 | $ | 567 |
2020 | 160 |

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