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Note 3 - Segment Reporting Information - Summarized Financial Information by Reportable Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Net Sales | $ 82,377 | $ 89,541 | $ 171,078 | $ 174,498
Operating income (loss) | 1,760 | (20,271) | 8,599 | (17,337)
Capital expenditures | 764 | 931 | 1,119 | 1,579
Depreciation and amortization | 2,152 | 2,592 | 4,551 | 5,235
Corporate and Eliminations [Member] |  |  |  |
Operating income (loss) | (2,752) | (2,680) | (6,089) | (5,983)
Capital expenditures | 162 | 94 | 187 | 200
Depreciation and amortization | 117 | 243 | 352 | 501
Lighting Segment [Member] |  |  |  |
Net Sales | 53,436 | 63,654 | 116,627 | 125,086
Lighting Segment [Member] | Operating Segments [Member] |  |  |  |
Operating income (loss) | 3,150 | (18,452) | 12,309 | (14,602)
Capital expenditures | 557 | 588 | 887 | 864
Depreciation and amortization | 1,661 | 1,952 | 3,439 | 3,942
Graphics Segment [Member] |  |  |  |
Net Sales | 28,941 | 25,887 | 54,451 | 49,412
Graphics Segment [Member] | Operating Segments [Member] |  |  |  |
Operating income (loss) | 1,362 | 861 | 2,379 | 3,248
Capital expenditures | 45 | 249 | 45 | 515
Depreciation and amortization | $ 374 | $ 397 | $ 760 | $ 792

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