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Note 6 - Goodwill and Other Intangible Assets (Details) | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2015 USD ($) | Mar. 02, 2015 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Mar. 02, 2014 USD ($)
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Number of Reporting Units | 3 |  |  |  |
Impairment of Intangible Assets, Finite-lived | $ 805,000 |  |  |  |
Indefinite-lived Intangible Assets Impairment Testing Value above Carrying Value |  | $ 6,600,000 |  |  |
Indefinite-lived Intangible Assets Impairment Testing Percent Value above Carrying Value |  | 192.00% |  |  |
Finite-Lived Intangible Assets, Gross | 22,052,000 |  |  | $ 23,088,000 |
Finite-Lived Intangible Assets, Accumulated Amortization | 19,382,000 |  |  | 19,283,000 |
Lighting Segment [Member] |  |  |  |  |
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Goodwill Impairment Testing, Value Above Carrying Value |  | $ 36,200,000 |  |  | $ 2,500,000
Goodwill Impairment Testing, Percent Value Above Carrying Value |  | 45.00% |  |  | 3.00%
Graphics Segment [Member] |  |  |  |  |
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Goodwill Impairment Testing, Value Above Carrying Value |  | $ 4,000,000 |  |  | $ 2,500,000
Goodwill Impairment Testing, Percent Value Above Carrying Value |  | 344.00% |  |  | 453.00%
Technology Segment [Member] |  |  |  |  |
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Goodwill Impairment Testing, Value Above Carrying Value |  | $ 14,900,000 |  |  | $ 18,200,000
Goodwill Impairment Testing, Percent Value Above Carrying Value |  | 58.00% |  |  | 71.00%
Customer Relationships [Member] |  |  |  |  |
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross | 9,316,000 |  |  | 10,352,000 |
Finite-Lived Intangible Assets, Accumulated Amortization | $ 7,290,000 |  |  | $ 7,412,000 |
Customer Relationships [Member] | LSI Saco [Member] |  |  |  |  |
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items] |  |  |  |  |
Finite-Lived Intangible Assets, Gross |  |  | $ 1,306,000 |  |
Finite-Lived Intangible Assets, Accumulated Amortization |  |  | $ 428,000 |  |

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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