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Note 7 - Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Jun. 30, 2016
--- | --- | ---
Goodwill, net | $ 10,508 | $ 10,508
Lighting Segment [Member] |  |
Goodwill | 34,913 | 34,913
Accumulated impairment losses | (34,778) | (34,778)
Goodwill, net | 135 | 135
Graphics Segment [Member] |  |
Goodwill | 28,690 | 28,690
Accumulated impairment losses | (27,525) | (27,525)
Goodwill, net | 1,165 | 1,165
Technology Segment [Member] |  |
Goodwill | 11,621 | 11,621
Accumulated impairment losses | (2,413) | (2,413)
Goodwill, net | 9,208 | 9,208
All Other Category [Member] |  |
Goodwill | 75,224 | 75,224
Accumulated impairment losses | (64,716) | (64,716)
Goodwill, net | $ 10,508 | $ 10,508

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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