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Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Statement Of Income And Comprehensive Income [Abstract] |  |  |  |  |
Net income |  | $ 2,164 | $ 2,249 | $ 5,947 | $ 6,588
Other comprehensive (loss) income: |  |  |  |  |
Unrealized (losses) gains arising during the period on available-for-sale securities, net of income taxes impact, respectively |  | (589) | (1) | (2,746) | 1,858
Reclassification adjustment for net gain on sales of available-for-sale securities included in net income, net of income taxes impact, respectively | [1] | (23) | (15) | (104) | (28)
Change in defined benefit plans, net of income taxes impact, respectively | [2] | 247 | (3) | 1,591 | (7)
Reclassification adjustment for settlement gains on benefit plans, net of income taxes | [3] | (92) |  | (393) |
Total other comprehensive (loss) income |  | (457) | (19) | (1,652) | 1,823
Total comprehensive income |  | $ 1,707 | $ 2,230 | $ 4,295 | $ 8,411
[1] | Amounts are included in net gain on sales of investment securities on the Consolidated Statements of Income as a separate element within total noninterest income.
[2] | The change in defined benefit plans includes several components of net periodic benefit costs, including service costs, interest costs, expected return on plan assets, and amortization of prior service costs. Please reference Note 9 – Defined Benefit Plans, for the classification of these components on Consolidated Statements of Income.
[3] | Amounts are included in other income on the Consolidated Statements of Income within total noninterest income.

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