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Note 17 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Mar. 31, 2021
Total assets	$ 175,296	$ 168,866
Operating Segments [Member] | Grid [Member]
Total assets	113,512	81,253
Operating Segments [Member] | Wind [Member]
Total assets	8,641	6,098
Corporate, Non-Segment [Member]
Total assets	$ 53,143	$ 81,515

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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