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Note 3 - Segment Reporting Information - Inter-segment Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015
Net sales | $ 85,658 | $ 84,687 | $ 169,817 | $ 170,612
Lighting Segment [Member] |  |  |  |
Net sales | 60,169 | 59,601 | 120,539 | 118,676
Graphics Segment [Member] |  |  |  |
Net sales | 20,582 | 21,206 | 39,476 | 43,536
Technology Segment [Member] |  |  |  |
Net sales | 4,907 | 3,880 | 9,802 | 8,400
Intersegment Eliminations [Member] | Lighting Segment [Member] |  |  |  |
Net sales | 713 | 814 | 1,487 | 1,428
Intersegment Eliminations [Member] | Graphics Segment [Member] |  |  |  |
Net sales | 680 | 562 | 812 | 1,006
Intersegment Eliminations [Member] | Technology Segment [Member] |  |  |  |
Net sales | $ 8,346 | $ 8,932 | $ 17,131 | $ 18,316

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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