Note 2 - Business Combinations - Pro Forma Operating Results (Details) - Century Metals and Supplies [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Net sales	$ 173,477	$ 130,910	$ 333,247	$ 270,783
Earnings from operations	$ 3,847	$ 900	$ 11,834	$ 807

Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period.

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