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Note 17 - Business Segments - Total Business Segments Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 31, 2022
Total assets	$ 165,072	$ 173,887
Operating Segments [Member] | Grid [Member]
Total assets	123,664	114,053
Operating Segments [Member] | Wind [Member]
Total assets	10,005	9,866
Corporate, Non-Segment [Member]
Total assets	$ 31,403	$ 49,968

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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