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Note 3 - Summarized Financial Information by Reportable Business Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014
Lighting Segment [Member] |  |  |  |  |
Net Sales (a): |  |  |  |  |
Net Sales |  | $ 59,601 | $ 59,796 | $ 118,676 | $ 115,517
Operating Income (Loss): |  |  |  |  |
Operating Income (Loss) |  | 5,182 | 4,090 | 10,864 | 8,317
Capital Expenditures: |  |  |  |  |
Capital Expenditures |  | 1,160 | 599 | 1,849 | 1,181
Depreciation and Amortization: |  |  |  |  |
Depreciation and Amortization |  | 717 | 729 | 1,422 | 1,451
Graphics Segment [Member] |  |  |  |  |
Net Sales (a): |  |  |  |  |
Net Sales |  | 21,034 | 20,269 | 42,787 | 36,293
Operating Income (Loss): |  |  |  |  |
Operating Income (Loss) |  | 2,035 | 1,065 | 4,196 | 1,118
Capital Expenditures: |  |  |  |  |
Capital Expenditures |  | 604 | 533 | 1,109 | 867
Depreciation and Amortization: |  |  |  |  |
Depreciation and Amortization |  | 213 | 256 | 428 | 506
Technology Segment [Member] |  |  |  |  |
Net Sales (a): |  |  |  |  |
Net Sales |  | 4,052 | 4,650 | 9,149 | 11,330
Operating Income (Loss): |  |  |  |  |
Operating Income (Loss) |  | 993 | 499 | 2,333 | 1,131
Capital Expenditures: |  |  |  |  |
Capital Expenditures |  | 108 | 241 | 224 | 285
Depreciation and Amortization: |  |  |  |  |
Depreciation and Amortization |  | 364 | 325 | 719 | 663
All Other Category [Member] |  |  |  |  |
Net Sales (a): |  |  |  |  |
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) |  | (2,830) | (3,430) | (6,250) | (5,625)
Capital Expenditures: |  |  |  |  |
Capital Expenditures |  | 150 | 61 | 202 | 67
Depreciation and Amortization: |  |  |  |  |
Depreciation and Amortization |  | 304 | 242 | 605 | 487
Net Sales | [1] | 84,687 | 84,715 | 170,612 | 163,181
Operating Income (Loss) |  | 5,380 | 2,224 | 11,143 | 4,758
Capital Expenditures |  | 2,022 | 1,434 | 3,384 | 2,404
Depreciation and Amortization |  | $ 1,598 | $ 1,552 | $ 3,174 | $ 3,138
[1] | Net sales are attributed to geographic areas based upon the location of the operation making the sale.

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