Note 4 - Segment Reporting Information - Intersegment Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2025	Sep. 30, 2024
Net sales	$ 157,249	$ 138,095
Lighting Segment [Member]
Net sales	69,054	58,437
Display Solutions Segment [Member]
Net sales	88,195	79,658
Intersegment Eliminations [Member] \| Lighting Segment [Member]
Net sales	3,245	5,984
Intersegment Eliminations [Member] \| Display Solutions Segment [Member]
Net sales	$ 114	$ 171

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details