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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, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Net sales | $ 72,832 | $ 78,843 | $ 247,330 | $ 258,614
Operating income (loss) | (2,273) | 743 | (19,610) | (19,524)
Capital expenditures | 769 | 988 | 2,348 | 2,178
Depreciation and amortization | 2,552 | 2,516 | 7,787 | 7,640
Corporate and Eliminations [Member] |  |  |  |
Operating income (loss) | (2,066) | (2,654) | (8,049) | (8,997)
Capital expenditures |  | 17 | 200 | 108
Depreciation and amortization | 236 | 273 | 737 | 848
Lighting Segment [Member] |  |  |  |
Net sales | 52,785 | 61,554 | 177,871 | 199,156
Lighting Segment [Member] | Operating Segments [Member] |  |  |  |
Operating income (loss) | 691 | 2,982 | (13,911) | (14,673)
Capital expenditures | 769 | 671 | 1,633 | 1,431
Depreciation and amortization | 1,925 | 1,865 | 5,867 | 5,651
Graphics Segment [Member] |  |  |  |
Net sales | 20,047 | 17,289 | 69,459 | 59,458
Graphics Segment [Member] | Operating Segments [Member] |  |  |  |
Operating income (loss) | (898) | 415 | 2,350 | 4,146
Capital expenditures |  | 300 | 515 | 639
Depreciation and amortization | $ 391 | $ 378 | $ 1,183 | $ 1,141

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