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Note 12 - Commitments and Contingencies (Details Textual) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2022 | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021
Product Liability Accrual, Period Expense |  | $ 84 | $ 0 |
Product Liability Accrual, Component Amount |  | 84 | 0 |
Accrued Health Insurance Liabilities |  | $ 742 | $ 360 |
Collective Bargaining Agreements, Number of Agreements |  | 2 |  |
Neville Island Union [Member] |  |  |  |
Collective Bargaining Agreement, Term (Year) | 4 years |  |  |
Cicero Union [Member] |  |  |  |
Collective Bargaining Agreement, Term (Year) | 4 years |  |  |
Workforce Subject to Collective-Bargaining Arrangements Expiring within One Year [Member] | Unionized Employees Concentration Risk [Member] |  |  |  |
Concentration Risk, Percentage |  | 18.00% |  |
Minimum [Member] |  |  |  |
Product Warranty Term (Year) |  | 1 year |  | 1 year
Maximum [Member] |  |  |  |
Product Warranty Term (Year) |  | 5 years |  | 5 years

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-42 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-21 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-20 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-18 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482861/275-10-50-20 + Details
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