Note 4 - Assets Held for Sale (Details Textual) $ in Millions	Jun. 04, 2025 USD ($)
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] \| Certain Assets Used in Industrial Fabrication Operations in Manitowoc, Wisconsin [Member] \| Wisconsin Heavy Fabrication, LLC [Member]
Disposal Group, Consideration	$ 13.8

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