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Note 8 - Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Goodwill [Table Text Block] |
(In thousands) |  | Lighting Segment |  |  | Display Solutions Segment |  |  | Total |
Balance as of June 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 70,971 |  |  | $ | 63,347 |  |  | $ | 134,318 |
Goodwill acquired |  |  | - |  |  |  | 12,367 |  |  |  | 12,367 |
Accumulated impairment losses |  |  | (61,763 | ) |  |  | (27,525 | ) |  |  | (89,288 | )
Goodwill, net as of June 30, 2024 |  | $ | 9,208 |  |  | $ | 48,189 |  |  | $ | 57,397 |
Balance as of June 30, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 70,971 |  |  | $ | 75,714 |  |  | $ | 146,685 |
Goodwill acquired, net of adjustments |  |  | - |  |  |  | 6,769 |  |  |  | 6,769 |
Foreign currency translation |  |  | - |  |  |  | 382 |  |  |  | 382 |
Accumulated impairment losses |  |  | (61,763 | ) |  |  | (27,525 | ) |  |  | (89,288 | )
Goodwill, net as of June 30, 2025 |  | $ | 9,208 |  |  | $ | 55,340 |  |  | $ | 64,548 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
(In thousands) |  | June 30, 2024 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 69,573 |  |  | $ | 21,332 |  |  | $ | 48,241 |
Patents |  |  | 268 |  |  |  | 268 |  |  |  | - |
LED technology, software |  |  | 24,126 |  |  |  | 17,058 |  |  |  | 7,068 |
Trade name |  |  | 2,658 |  |  |  | 1,265 |  |  |  | 1,393 |
Non-compete |  |  | 400 |  |  |  | 168 |  |  |  | 232 |
Total Amortized Intangible Assets |  | $ | 97,025 |  |  | $ | 40,091 |  |  | $ | 56,934 |
Indefinite-lived Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  | 16,982 |  |  |  | - |  |  |  | 16,982 |
Total indefinite-lived Intangible Assets |  |  | 16,982 |  |  |  | - |  |  |  | 16,982 |
Total Other Intangible Assets |  | $ | 114,007 |  |  | $ | 40,091 |  |  | $ | 73,916 |
(In thousands) |  | June 30, 2025 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 78,485 |  |  | $ | 25,251 |  |  | $ | 53,234 |
Patents |  |  | 268 |  |  |  | 268 |  |  |  | - |
LED technology, software |  |  | 24,126 |  |  |  | 18,694 |  |  |  | 5,432 |
Trade name |  |  | 3,704 |  |  |  | 1,404 |  |  |  | 2,300 |
Non-compete |  |  | 590 |  |  |  | 280 |  |  |  | 310 |
Total Amortized Intangible Assets |  | $ | 107,173 |  |  | $ | 45,897 |  |  | $ | 61,276 |
Indefinite-lived Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  | 16,982 |  |  |  | - |  |  |  | 16,982 |
Total indefinite-lived Intangible Assets |  |  | 16,982 |  |  |  | - |  |  |  | 16,982 |
Total Other Intangible Assets |  | $ | 124,155 |  |  | $ | 45,897 |  |  | $ | 78,258 |
Finite-Lived Intangible Assets Amortization Expense [Table Text Block] |
(In thousands) |  | 2025 |  |  | 2024 |
Amortization expense of other intangible assets |  | $ | 5,806 |  |  | $ | 4,957 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(In thousands) |  |  |  |
2026 |  | $ | 6,220 |
2027 |  | $ | 6,037 |
2028 |  | $ | 5,560 |
2029 |  | $ | 4,916 |
2030 |  | $ | 4,911 |
After 2030 |  | $ | 33,632 |

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