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Note 19 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Mar. 31, 2024
Total assets	$ 298,448	$ 232,771
Operating Segments [Member] | Grid [Member]
Total assets	212,985	125,878
Operating Segments [Member] | Wind [Member]
Total assets	11,475	14,733
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Total assets	$ 73,988	$ 92,160

X

- Definition

Amount of asset recognized for present right to economic benefit.

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