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Note 7 - Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Mar. 31, 2019
Notes Tables |
Schedule of Goodwill [Table Text Block] |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Lighting |  |  | Graphics |  |  |  |  |
|  | Segment |  |  | Segment |  |  | Total |
Balance as of June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 94,564 |  |  | $ | 28,690 |  |  | $ | 123,254 |
Accumulated impairment losses |  |  | (65,191 | ) |  |  | (27,525 | ) |  |  | (92,716 | )
Goodwill, net as of June 30, 2018 |  | $ | 29,373 |  |  | $ | 1,165 |  |  | $ | 30,538 |
Goodwill Impairment |  | $ | (20,165 | ) |  | $ | -- |  |  | $ | (20,165 | )
Balance as of March 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 94,564 |  |  | $ | 28,690 |  |  | $ | 123,254 |
Accumulated impairment losses |  |  | (85,356 | ) |  |  | (27,525 | ) |  |  | (112,881 | )
Goodwill, net as of March 31, 2019 |  | $ | 9,208 |  |  | $ | 1,165 |  |  | $ | 10,373 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | March 31, 2019 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |  |  |
(In thousands) |  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 35,563 |  |  | $ | 11,556 |  |  | $ | 24,007 |
Patents |  |  | 338 |  |  |  | 239 |  |  |  | 99 |
LED technology firmware, software |  |  | 16,066 |  |  |  | 12,223 |  |  |  | 3,843 |
Trade name |  |  | 2,658 |  |  |  | 692 |  |  |  | 1,966 |
Total Amortized Intangible Assets |  |  | 54,625 |  |  |  | 24,710 |  |  |  | 29,915 |
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 |  | $ | 58,047 |  |  | $ | 24,710 |  |  | $ | 33,337 |
|  | June 30, 2018 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |
(In thousands) |  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 35,563 |  |  | $ | 10,011 |  |  | $ | 25,552 |
Patents |  |  | 338 |  |  |  | 217 |  |  |  | 121 |
LED technology firmware, software |  |  | 16,066 |  |  |  | 11,801 |  |  |  | 4,265 |
Trade name |  |  | 2,658 |  |  |  | 609 |  |  |  | 2,049 |
Total Amortized Intangible Assets |  |  | 54,625 |  |  |  | 22,638 |  |  |  | 31,987 |
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 |  | $ | 58,047 |  |  | $ | 22,638 |  |  | $ | 35,409 |

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