Note 3 - Business Segment Information - Identifiable Assets by Segment (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Assets	$ 348,800	$ 296,149
Operating Segments [Member] \| Lighting Segment [Member]
Assets	130,695	142,941
Operating Segments [Member] \| Display Solutions Segment [Member]
Assets	208,248	145,307
Corporate and Eliminations [Member]
Assets	$ 9,857	$ 7,901

Amount of asset recognized for present right to economic benefit.

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+ Details