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Note 16 - Pension and Other Benefits - Schedule of Changes in Fair Value of Plan Assets (Details) - Pension Plan [Member] - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Fair value | $ 13,257 | $ 17,604 | $ 15,868
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 13,257 | 17,604 |
Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Cash [Member] |  |  |
Fair value | 262 | 178 |
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 262 | 178 |
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Cash [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Equity Securities, US [Member] |  |  |
Fair value | 7,611 | 10,551 |
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 7,611 | 10,551 |
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Equity Securities, US [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Equity Securities, Non-US [Member] |  |  |
Fair value | 569 | 897 |
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 569 | 897 |
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Equity Securities, Non-US [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Cash and Other Alternative Investments [Member] |  |  |
Fair value | 4,684 | 5,804 |
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 4,684 | 5,804 |
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Cash and Other Alternative Investments [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Commodity Funds [Member] |  |  |
Fair value | 95 | 111 |
Commodity Funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 95 | 111 |
Commodity Funds [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Commodity Funds [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Real Estate [Member] |  |  |
Fair value | 36 | 63 |
Defined Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value | 36 | 63 |
Defined Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value | 0 | 0 |
Defined Benefit Plan, Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value | $ 0 | $ 0 |

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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + 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 (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: 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 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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