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Note 6 - Goodwill and Other Intangibles (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
Goodwill, Acquired During Period					$ 4,700
Goodwill, Period Increase (Decrease)			$ 0
Goodwill, Impairment Loss	$ 0	$ 0	0	$ 0
Customer Relationship, Core Technology and Know-how [Member]
Amortization of Intangible Assets	$ 300	$ 400	$ 700	$ 800

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.

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