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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

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