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Note 7 - Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023
--- | --- | ---
Goodwill | $ 134,318 | $ 134,318
Accumulated impairment losses | (89,288) | (89,288)
Goodwill, net | 45,030 | 45,030
Lighting Segment [Member] |  |
Goodwill | 70,971 | 70,971
Accumulated impairment losses | (61,763) | (61,763)
Goodwill, net | 9,208 | 9,208
Display Solutions Segment [Member] |  |
Goodwill | 63,347 | 63,347
Accumulated impairment losses | (27,525) | (27,525)
Goodwill, net | $ 35,822 | $ 35,822

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