Defined benefit plan effect on pension expense.

No definition available.

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- Definition

Unrecognized Actuarial Gain (Loss) in Excess of Benefit Obligation, Percentage.

+ References

No definition available.

+ Details

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- Definition

Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

+ Details

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 20
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+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

+ Details

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
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+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Ultimate trend rate for health care cost for defined benefit postretirement plan.

+ References

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-Topic 715
-SubTopic 20
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-Section 50
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-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Note 9 - Pensions and Other Postretirement Benefits (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	5.00%	5.00%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		$ 6,400	$ 2,300
Unrecognized Actuarial Gain (Loss) in Excess of Benefit Obligation, Percentage	10.00%
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 3,000
One Percentage Point Change in Assumed Rate of Return [Member]
Defined Benefit Plan Effect On Pension Expense		400
One Percentage Point Increase in Discount Rate [Member]
Defined Benefit Plan Effect On Pension Expense	1,100
One Percentage Point Decrease in Discount Rate [Member]
Defined Benefit Plan Effect On Pension Expense	$ 1,300
Defined Benefit Plan, Equity Securities [Member] \| Minimum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	5.00%
Defined Benefit Plan, Equity Securities [Member] \| Maximum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	35.00%
Fixed Income Securities [Member] \| Minimum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	49.00%
Fixed Income Securities [Member] \| Maximum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	70.00%
Alternative Investments [Member] \| Minimum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	13.00%
Alternative Investments [Member] \| Maximum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	3.00%
Defined Benefit Plan, Cash and Cash Equivalents [Member] \| Minimum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	0.00%
Defined Benefit Plan, Cash and Cash Equivalents [Member] \| Maximum [Member]
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage	20.00%
Pension Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 4,300	3,000	2,300
Defined Benefit Plan, Plan Assets, Contributions by Employer	2,250	2,250
Defined Benefit Plan, Benefit Obligation, Ending Balance	62,149	55,930
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(0)	(6,427)	$ (2,304)
Fill-Rite Plan [Member]
Defined Benefit Plan, Plan Assets, Contributions by Employer	300	$ 300
Defined Benefit Plan, Benefit Obligation, Ending Balance	$ 400
Postretirement Health Coverage [Member]
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate	5.00%	5.00%