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Note 3 - Segment Reporting Information - Summarized Financial Information by Reportable Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2018 | Mar. 31, 2017
Net sales | $ 78,843 | $ 78,156 | $ 258,614 | $ 247,973
Operating Income (Loss): |  |  |  |
Operating income (loss) | 743 | (774) | (19,524) | 3,110
Capital Expenditures: |  |  |  |
Capital expenditures | 988 | 790 | 2,178 | 3,534
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 2,516 | 2,084 | 7,640 | 5,689
Corporate and Eliminations [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | (2,654) | (4,414) | (8,997) | (9,573)
Capital Expenditures: |  |  |  |
Capital expenditures | 17 | (8) | 108 | 610
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 273 | 281 | 848 | 843
Lighting Segment [Member] |  |  |  |
Net sales | 61,554 | 61,693 | 199,156 | 192,034
Lighting Segment [Member] | Operating Segments [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | 2,982 | 4,120 | (14,673) | 10,972
Capital Expenditures: |  |  |  |
Capital expenditures | 671 | 299 | 1,431 | 1,600
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | 1,865 | 1,446 | 5,651 | 3,753
Graphics Segment [Member] |  |  |  |
Net sales | 17,289 | 16,463 | 59,458 | 55,939
Graphics Segment [Member] | Operating Segments [Member] |  |  |  |
Operating Income (Loss): |  |  |  |
Operating income (loss) | 415 | (480) | 4,146 | 1,711
Capital Expenditures: |  |  |  |
Capital expenditures | 300 | 499 | 639 | 1,324
Depreciation and Amortization: |  |  |  |
Depreciation and amortization | $ 378 | $ 357 | $ 1,141 | $ 1,093

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