Note 7 - Goodwill and Other Intangible Assets (Details) - Goodwill (USD $) In Thousands, unless otherwise specified	6 Months Ended
Dec. 31, 2014	Jun. 30, 2014
Goodwill [Line Items]
Goodwill	$ 75,224us-gaap_GoodwillGross	$ 78,343us-gaap_GoodwillGross
Accumulated impairment Losses	(64,716)	(67,835)
Net Goodwill	10,508us-gaap_Goodwill	10,508us-gaap_Goodwill
Lighting Segment [Member]
Goodwill [Line Items]
Goodwill	34,913	34,913
Accumulated impairment Losses	(34,778)	(34,778)
Net Goodwill	135	135
Graphics Segment [Member]
Goodwill [Line Items]
Goodwill	24,959	24,959
Accumulated impairment Losses	(24,959)	(24,959)
Net Goodwill	0	0
Electronics Components Segment [Member]
Goodwill [Line Items]
Goodwill	11,621	11,621
Accumulated impairment Losses	(2,413)	(2,413)
Net Goodwill	9,208	9,208
All Other Category [Member] \| LSI Saco [Member]
Goodwill [Line Items]
Goodwill	(3,119)
Accumulated impairment losses	3,119
All Other Category [Member]
Goodwill [Line Items]
Goodwill	3,731	6,850
Accumulated impairment Losses	(2,566)	(5,685)
Net Goodwill	1,165	1,165
LSI Saco [Member]
Goodwill [Line Items]
Goodwill	(3,119)
Accumulated impairment losses	$ 3,119

The amount accumulated impairment losses that was eliminated due to the sale of a subsidiary.

No definition available.

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- Definition

The amount of goodwill before accumulated impairment losses that was eliminated due to the sale of a subsidiary.

+ References

No definition available.

+ Details

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

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Period Type:	instant

- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a,h)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

+ Details

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

+ Details

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- Details

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- Details

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- Details

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- Details

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