PENSION PLANS. (Details 3) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Components of net periodic benefit costs are as follows: | |||
| Loss (gain) recognized in other comprehensive income (expense) | $ 225 | $ (386) | $ 3,660 |
| Postretirement Plan [Member] | |||
| Amounts recognized in the plan for the year: | |||
| Company contributions | 137 | 157 | 163 |
| Participant contributions | 14 | 22 | 22 |
| Benefits paid | (152) | (179) | (184) |
| Components of net periodic benefit costs are as follows: | |||
| Service cost | 84 | 84 | 48 |
| Interest cost | 182 | 198 | 139 |
| Amortization of prior service costs | 131 | 134 | |
| Net periodic benefit cost | 397 | 416 | 187 |
| Loss (gain) recognized in other comprehensive income (expense) | $ (118) | $ (65) | $ 1,728 |
| Discount rate used in computation of benefit obligations | 3.35% | 3.80% | 3.95% |
| X | ||||||||||
- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of contributions received by defined benefit plan from participant which increases plan assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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