Note 12 - Pension and Other Postretirement Benefits - The Components of the Net Pension Expense for the Retirement Plan (Details) - Retirement Plan [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
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Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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Interest cost | $ 864 | $ 902 | $ 889 |
Amortization of unrecognized loss | 697 | 809 | 1,112 |
Expected return on plan assets | (1,392) | (1,394) | (1,400) |
Net pension expense | 169 | 317 | 601 |
Current year actuarial (gain) loss | (1,192) | 275 | (237) |
Amortization of actuarial loss | (697) | (809) | (1,112) |
Total recognized in other comprehensive income | (1,889) | (534) | (1,349) |
Total recognized in net pension cost (benefit) and other comprehensive loss | $ (1,720) | $ (217) | $ (748) |
X | ||||||||||
- Definition Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- 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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X | ||||||||||
- Definition Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- 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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X | ||||||||||
- 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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X | ||||||||||
- 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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X | ||||||||||
- Definition Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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