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Note 20 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Mar. 31, 2024
Total assets	$ 310,521	$ 232,771
Operating Segments [Member] | Grid [Member]
Total assets	211,520	125,878
Operating Segments [Member] | Wind [Member]
Total assets	13,697	14,733
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Total assets	$ 85,304	$ 92,160

X

- Definition

Amount of asset recognized for present right to economic benefit.

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