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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 14,026 | $ 15,182 | $ 10,964
Unrealized gains (losses) on securities: |  |  |
Unrealized holdings gains (losses) arising during the period | 7,705 | (9,924) | 59
Less: reclassification for net gains included in net income | 2,802 | 1,224 | 1,481
Less: reclassification for other-than-temporary impairment loss included in net income | 0 | (136) | 0
Transfer of investment securities from held-to-maturity to available-for-sale | 0 | 2,647 | 0
Amortization of net unrealized gains transferred | 0 | (64) | (78)
Other comprehensive income (loss), before tax | 4,903 | (8,429) | (1,500)
Tax (expense) benefit related to items of other comprehensive income | (2,062) | 3,451 | 585
Total other comprehensive income (loss) | 2,841 | (4,978) | (915)
Comprehensive income | $ 16,867 | $ 10,204 | $ 10,049

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