Note 2 - Acquisitions - Schedule of Pro Forma Information (Details) - Amran Instrument Transformers and Narayan Powertech Pvt. Ltd. [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2025
Net sales	$ 207,780	$ 604,501
Net income	$ 26,851	$ 70,794

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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