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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 earnings | $ 14,439 | $ 12,121 | $ 10,111
Unrealized gains (losses) on securities |  |  |
Unrealized holding losses arising during the period | (54) | (83) | (1,152)
Amortization of net unrealized gains on held to maturity securities | 377 | 113 | 92
Reclassification adjustment for net gains included in net earnings | (167) | (82) | (77)
Tax effect | 80 | 58 | 430
Unrealized gains (losses) on securities, net of tax | 236 | 6 | (707)
Unrealized holding gains (losses) arising during the period on interest rate swaps | 124 | 80 | (42)
Total other comprehensive income (loss) | 360 | 86 | (749)
Comprehensive income | $ 14,799 | $ 12,207 | $ 9,362

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