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Note 5 - Goodwill and Other Intangibles (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Goodwill, Impairment Loss	$ 0		$ 0
Customer Relationship, Core Technology and Know-how [Member]
Amortization of Intangible Assets	500	$ 700	1,100	$ 1,400
Backlog [Member]
Amortization of Intangible Assets	$ 0	$ 0	$ 100	$ 100

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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