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Note 7 - Goodwill and Other Intangible Assets (Tables) | 6 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Goodwill [Table Text Block] |
Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Lighting |  |  | Graphics |  |  | Technology |  |  |  |  |
|  | Segment |  |  | Segment |  |  | Segment |  |  | Total |
Balance as of June 30, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 34,913 |  |  | $ | 28,690 |  |  | $ | 11,621 |  |  | $ | 75,224 |
Accumulated impairment losses |  |  | (34,778 | ) |  |  | (27,525 | ) |  |  | (2,413 | ) |  |  | (64,716 | )
Goodwill, net as of June 30, 2016 |  | $ | 135 |  |  | $ | 1,165 |  |  | $ | 9,208 |  |  | $ | 10,508 |
Balance as of December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 34,913 |  |  |  | 28,690 |  |  |  | 11,621 |  |  |  | 75,224 |
Accumulated impairment losses |  |  | (34,778 | ) |  |  | (27,525 | ) |  |  | (2,413 | ) |  |  | (64,716 | )
Goodwill, net as of December 31, 2016 |  | $ | 135 |  |  | $ | 1,165 |  |  | $ | 9,208 |  |  | $ | 10,508 |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | December 31, 2016 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |  |  |
(In thousands) |  | Carrying |  |  | Accumulated |  |  | Net |
|  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 9,316 |  |  | $ | 7,727 |  |  | $ | 1,589 |
Patents |  |  | 338 |  |  |  | 172 |  |  |  | 166 |
LED technology firmware, software |  |  | 11,228 |  |  |  | 11,027 |  |  |  | 201 |
Trade name |  |  | 460 |  |  |  | 460 |  |  |  | -- |
Non-compete agreements |  |  | 710 |  |  |  | 710 |  |  |  | -- |
Total Amortized Intangible Assets |  |  | 22,052 |  |  |  | 20,096 |  |  |  | 1,956 |
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 |  | $ | 25,474 |  |  | $ | 20,096 |  |  | $ | 5,378 |
|  | June 30, 2016 |
Other Intangible Assets |  | Gross |  |  |  |  |  |  |  |  |
|  | Carrying |  |  | Accumulated |  |  | Net |
(In thousands) |  | Amount |  |  | Amortization |  |  | Amount |
Amortized Intangible Assets |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 9,316 |  |  | $ | 7,581 |  |  | $ | 1,735 |
Patents |  |  | 338 |  |  |  | 154 |  |  |  | 184 |
LED technology firmware, software |  |  | 11,228 |  |  |  | 10,989 |  |  |  | 239 |
Trade name |  |  | 460 |  |  |  | 460 |  |  |  | -- |
Non-compete agreements |  |  | 710 |  |  |  | 704 |  |  |  | 6 |
Total Amortized Intangible Assets |  |  | 22,052 |  |  |  | 19,888 |  |  |  | 2,164 |
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 |  | $ | 25,474 |  |  | $ | 19,888 |  |  | $ | 5,586 |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] |
(In thousands) |  | Amortization Expense of Other Intangible Assets |
|  | December 31, 2016 |  |  | December 31, 2015 |
Three Months Ended |  | $ | 101 |  |  | $ | 127 |
Six Months Ended |  | $ | 208 |  |  | $ | 253 |
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] |
(In thousands) |
2017 |  | $ | 419 |
2018 |  | $ | 401 |
2019 |  | $ | 401 |
2020 |  | $ | 327 |
2021 |  | $ | 323 |
After 2021 |  | $ | 293 |

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