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Note 2 - Acquisitions (Details Textual) - USD ($) $ in Millions | Oct. 01, 2021 | Dec. 14, 2020
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Shaw Stainless & Alloy, Inc [Member] |  |
Business Combination, Consideration Transferred, Total | $ 12.1 |
Action Stainless & Alloys, Inc. [Member] |  |
Business Combination, Consideration Transferred, Total |  | $ 19.5

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