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Note 6 - Goodwill and Other Intangibles (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Goodwill, Impairment Loss	$ 0		$ 0
Customer Relationship, Core Technology and Know-how [Member]
Amortization of Intangible Assets	400	$ 500	800	$ 1,100
Backlog [Member]
Amortization of Intangible Assets	$ 200	$ 0	$ 200	$ 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 impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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