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Note 3 - Segment Reporting Information (Details) - Summarized Financial Information by Reportable Business Segments - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 30, 2015 | Sep. 30, 2014
Net Sales: |  |  |
Net sales | [1] | $ 85,925 | $ 78,466
Operating Income (Loss): |  |  |
Operating Income (Loss) |  | 5,763 | 2,534
Capital Expenditures: |  |  |
Capital Expenditures |  | 1,362 | 970
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  | 1,576 | 1,586
Lighting Segment [Member] |  |  |
Net Sales: |  |  |
Net sales |  | 59,075 | 55,721
Operating Income (Loss): |  |  |
Operating Income (Loss) |  | 5,682 | 4,227
Capital Expenditures: |  |  |
Capital Expenditures |  | 689 | 582
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  | 705 | 722
Graphics Segment [Member] |  |  |
Net Sales: |  |  |
Net sales |  | 21,753 | 16,024
Operating Income (Loss): |  |  |
Operating Income (Loss) |  | 2,161 | 53
Capital Expenditures: |  |  |
Capital Expenditures |  | 505 | 334
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  | 215 | 250
Technology Segment [Member] |  |  |
Net Sales: |  |  |
Net sales |  | 5,097 | 6,680
Operating Income (Loss): |  |  |
Operating Income (Loss) |  | 1,340 | 632
Capital Expenditures: |  |  |
Capital Expenditures |  | 116 | 44
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  | 355 | 338
All Other Category [Member] |  |  |
Net Sales: |  |  |
Net sales |  |  | 41
Operating Income (Loss): |  |  |
Operating Income (Loss) |  |  | (183)
Capital Expenditures: |  |  |
Capital Expenditures |  |  | 4
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  |  | 31
Corporate and Eliminations [Member] |  |  |
Operating Income (Loss): |  |  |
Operating Income (Loss) |  | (3,420) | (2,195)
Capital Expenditures: |  |  |
Capital Expenditures |  | 52 | 6
Depreciation and Amortization: |  |  |
Depreciation and Amortization |  | $ 301 | $ 245
[1] | Net sales are attributed to geographic areas based upon the location of the operation making the sale.

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