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Note 6 - Goodwill and Other Intangibles - Goodwill (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2022 USD ($)
March 31, 2021	$ 43,471
March 31, 2022	43,471
Grid [Member]
March 31, 2021	34,634
Neeltran Acquisition	8,837
Less impairment loss	0
March 31, 2022	$ 43,471

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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X

- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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X

- Definition

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+ References

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