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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract] |  |  |  |
Net income |  | $ 17,701 | $ 10,596 | $ 7,089
Other comprehensive income (loss): |  |  |  |
Unrealized gains (losses) arising during the period on available for sale securities, net of income taxes of $1,223, ($259), and $589, respectively | [1] | 4,598 | (1,010) | 1,143
Reclassification adjustment for net gain on sales of available-for-sale securities included in net income, net of income taxes of ($394), ($29), and ($14), respectively | [1],[2] | (1,484) | (108) | (28)
Change in defined benefit plans, net of income taxes of ($79), $363, and $4, respectively | [1],[3] | (296) | 1,364 | 15
Reclassification adjustment for settlement gains and activity related to benefit plans, net of income taxes of ($26), ($156), and ($3), respectively | [1],[4] | (97) | (585) | (10)
Total other comprehensive income (loss) |  | 2,721 | (339) | 1,120
Total comprehensive income |  | $ 20,422 | $ 10,257 | $ 8,209
[1] | The income tax impacts of the components of other comprehensive income are calculated using a 21 percent tax rate for 2019 and 2018 and a 34 percent tax rate for 2017.
[2] | Amounts are included in net gain on sales of investment securities on the Consolidated Statements of Income as a separate component within total noninterest income.
[3] | The change in defined benefit plans consists primarily of unrecognized actuarial (losses) gains on defined benefit plans during the period.
[4] | The reclassification adjustment for defined benefit plans includes settlement gains, amortization of prior service costs, and amortization of net gain or loss. Amounts are included in other income on the Consolidated Statements of Income within the total noninterest income. Please reference Note 15, Postretirement Benefit Plans, to the consolidated financial statements for more information.

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