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Note 7 - Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Mar. 31, 2018
Notes Tables |
Schedule of Goodwill [Table Text Block] |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Lighting |  |  | Graphics |  |  |  |  |
|  | Segment |  |  | Segment |  |  | Total |
Balance as of June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 94,564 |  |  | $ | 28,690 |  |  | $ | 123,254 |
Accumulated impairment losses |  |  | (37,191 | ) |  |  | (27,525 | ) |  |  | (64,716 | )
Goodwill, net as of June 30, 2017 |  | $ | 57,373 |  |  | $ | 1,165 |  |  | $ | 58,538 |
Goodwill Impairment |  |  | (28,000 | ) |  |  | -- |  |  |  | (28,000 | )
Balance as of March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 94,564 |  |  |  | 28,690 |  |  |  | 123,254 |
Accumulated impairment losses |  |  | (65,191 | ) |  |  | (27,525 | ) |  |  | (92,716 | )
Goodwill, net as of March 31, 2018 |  | $ | 29,373 |  |  | $ | 1,165 |  |  | $ | 30,538 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | March 31, 2018 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |  |  |
(In thousands) |  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 35,563 |  |  | $ | 9,496 |  |  | $ | 26,067 |
Patents |  |  | 338 |  |  |  | 210 |  |  |  | 129 |
LED technology firmware, software |  |  | 16,066 |  |  |  | 11,661 |  |  |  | 4,404 |
Trade name |  |  | 2,658 |  |  |  | 582 |  |  |  | 2,076 |
Non-compete agreements |  |  | 710 |  |  |  | 710 |  |  |  | -- |
Total Amortized Intangible Assets |  |  | 55,335 |  |  |  | 22,659 |  |  |  | 32,676 |
Indefinite-lived Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  | 3,422 |  |  |  | -- |  |  |  | 3,422 |
Total Indefinite-lived Intangible Assets |  |  | 3,422 |  |  |  | -- |  |  |  | 3,422 |
Total Other Intangible Assets |  | $ | 58,757 |  |  | $ | 22,659 |  |  | $ | 36,098 |
|  | June 30, 2017 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
(In thousands) |  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 35,563 |  |  | $ | 7,956 |  |  | $ | 27,607 |
Patents |  |  | 338 |  |  |  | 186 |  |  |  | 152 |
LED technology firmware, software |  |  | 16,066 |  |  |  | 11,237 |  |  |  | 4,829 |
Trade name |  |  | 2,658 |  |  |  | 499 |  |  |  | 2,159 |
Non-compete agreements |  |  | 710 |  |  |  | 710 |  |  |  | - |
Total Amortized Intangible Assets |  |  | 55,335 |  |  |  | 20,588 |  |  |  | 34,747 |
Indefinite-lived Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Trademarks and trade names |  |  | 3,422 |  |  |  | -- |  |  |  | 3,422 |
Total Indefinite-lived Intangible Assets |  |  | 3,422 |  |  |  | -- |  |  |  | 3,422 |
Total Other Intangible Assets |  | $ | 58,757 |  |  | $ | 20,588 |  |  | $ | 38,169 |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
(In thousands) |  | Amortization Expense of Other Intangible Assets |
|  | March 31, 2018 |  |  | March 31, 2017 |
Three Months Ended |  | $ | 691 |  |  | $ | 359 |
Nine Months Ended |  | $ | 2,071 |  |  | $ | 567 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(In thousands) |  |  |  |
2018 |  | $ | 2,760 |
2019 |  | $ | 2,760 |
2020 |  | $ | 2,687 |
2021 |  | $ | 2,682 |
2022 |  | $ | 2,461 |
After 2022 |  | $ | 21,397 |

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