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Note 16 - Pension and Other Benefits - Schedule of Allocation of Plan Assets (Details) - Pension Plan [Member] | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Target Allocation | 100.00% |  |
Actual Allocation | 100.00% | 100.00% |
Expected long-term return on plan assets | 6.50% | 5.50% | 5.50%
Defined Benefit Plan, Equity Securities, US [Member] |  |  |
Target Allocation | 45.00% |  |
Actual Allocation | 58.00% | 59.00% |
Expected long-term return on plan assets | 4.50% |  |
Defined Benefit Plan, Equity Securities, Non-US [Member] |  |  |
Target Allocation | 15.00% |  |
Actual Allocation | 4.00% | 5.00% |
Expected long-term return on plan assets | 0.40% |  |
Debt And/Or Fixed Income Securities [Member] |  |  |
Target Allocation | 38.00% |  |
Actual Allocation | 35.00% | 34.00% |
Expected long-term return on plan assets | 1.50% |  |
Cash and Other Alternative Investments [Member] |  |  |
Target Allocation | 2.00% |  |
Actual Allocation | 3.00% | 2.00% |
Expected long-term return on plan assets | 0.10% |  |

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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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- 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 Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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