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Note 8 - Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Dec. 31, 2024
Notes Tables |
Schedule of Goodwill [Table Text Block] |
Goodwill |  |  |  |  |  | Display |  |  |  |  |
(In thousands) |  | Lighting |  |  | Solutions |  |  |  |  |
|  | Segment |  |  | Segment |  |  | Total |
Balance as of December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 70,971 |  |  | $ | 75,773 |  |  | $ | 146,744 |
Accumulated impairment losses |  |  | (61,763 | ) |  |  | (27,525 | ) |  |  | (89,288 | )
Goodwill, net as of December 31, 2024 |  | $ | 9,208 |  |  | $ | 48,248 |  |  | $ | 57,456 |
Balance as of June 30, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 70,971 |  |  | $ | 75,714 |  |  | $ | 146,685 |
Accumulated impairment losses |  |  | (61,763 | ) |  |  | (27,525 | ) |  |  | (89,288 | )
Goodwill, net as of June 30, 2024 |  | $ | 9,208 |  |  | $ | 48,189 |  |  | $ | 57,397 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
Other Intangible Assets |  | December 31, 2024 |
(In thousands) |  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 69,573 |  |  | $ | 23,227 |  |  | $ | 46,346 |
Patents |  |  | 268 |  |  |  | 268 |  |  |  | - |
LED technology firmware, software |  |  | 24,126 |  |  |  | 17,876 |  |  |  | 6,250 |
Trade name |  |  | 2,658 |  |  |  | 1,319 |  |  |  | 1,339 |
Non-compete |  |  | 400 |  |  |  | 217 |  |  |  | 183 |
Total Amortized Intangible Assets |  |  | 97,025 |  |  |  | 42,907 |  |  |  | 54,118 |
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 |  |  | $ | 42,907 |  |  | $ | 71,100 |
Other Intangible Assets |  | June 30, 2024 |
(In thousands) |  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 69,573 |  |  | $ | 21,332 |  |  | $ | 48,241 |
Patents |  |  | 268 |  |  |  | 268 |  |  |  | - |
LED technology firmware, 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 |
Finite-Lived Intangible Assets Amortization Expense [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | December 31 |  |  | December 31 |
(In thousands) |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Amortization Expense of Other Intangible Assets |  | $ | 1,408 |  |  | $ | 1,190 |  |  | $ | 2,816 |  |  | $ | 2,380 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(In thousands) |  |  |  |
2025 |  | $ | 5,739 |
2026 |  | $ | 5,733 |
2027 |  | $ | 5,512 |
2028 |  | $ | 5,125 |
2029 |  | $ | 4,497 |
After 2029 |  | $ | 30,328 |

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