8. Pension and Retirement Benefit Plans (Details - Retirement Plans) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2017 |
Jun. 30, 2016 |
Jun. 30, 2017 |
Jun. 30, 2016 |
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| Retirement Plan [Member] | ||||
| Interest cost | $ 98 | $ 172 | $ 195 | $ 344 |
| Service cost | 188 | 56 | 375 | 112 |
| Expected return on plan assets | (169) | (199) | (337) | (398) |
| Net periodic benefit cost | 117 | 29 | 233 | 58 |
| Postretirement Plan [Member] | ||||
| Interest cost | 21 | 35 | 42 | 70 |
| Service cost | 50 | 12 | 100 | 24 |
| Amortization of (gain) loss | 33 | 0 | 66 | 0 |
| Net periodic benefit cost | $ 104 | $ 47 | $ 208 | $ 94 |
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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/presentationRef
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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/presentationRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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/presentationRef
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- Details
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- Details
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