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Note 16 - Acquisition - Pro Forma Information (Details) - Green Giant [Member] - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Pro forma net sales | $ 1,865,074 | $ 1,823,457
Pro forma net earnings | $ 104,778 | $ 31,762

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