Note 7 - Goodwill And Other Intangible Assets (Details) - Goodwill (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Goodwill [Line Items]
Goodwill	$ 78,343	$ 78,343
Accumulated impairment Losses	(67,835)	(67,835)
Net Goodwill	10,508	10,508
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]
Goodwill [Line Items]
Goodwill	6,850	6,850
Accumulated impairment Losses	(5,685)	(5,685)
Net Goodwill	$ 1,165	$ 1,165