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

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
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