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Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Average daily balance during the year |  |  |  |
Interest cost | $ 120 | $ 129 | $ 239 | $ 257
Expected return on plan assets | (160) | (155) | (320) | (291)
Net amortization | 103 | 102 | 206 | 204
Recognized settlement loss |  |  |  |
Net periodic pension cost | 63 | 76 | 125 | 170
Amortization of actuarial loss | (103) |  | (204) | (101)
Total recognized in other comprehensive income | (103) |  | (204) | (101)
Total recognized in net expense and OCI (before tax) | $ (40) | $ 76 | $ (79) | $ 69

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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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