Note 6 - Assets Held For Sale - Assets and Liabilities Held For Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Mar. 31, 2023	Oct. 01, 2022
Current assets held for sale	$ 200	$ 4,358	$ 4,604
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member]
Property, plant and equipment, net	200	4,358	4,604
Current assets held for sale	$ 200	$ 4,358	$ 4,604

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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