Note 7 - Goodwill And Other Intangible Assets (Details) - Goodwill (USD $)	Mar. 31, 2014	Jun. 30, 2013
Goodwill [Line Items]
Goodwill	$ 78,343,000	$ 78,343,000
Accumulated impairment Losses	(67,835,000)	(67,835,000)
Net Goodwill	10,508,000	10,508,000
Lighting Segment [Member]
Goodwill [Line Items]
Goodwill	34,913,000	34,913,000
Accumulated impairment Losses	(34,778,000)	(34,778,000)
Net Goodwill	135,000	135,000
Graphics Segment [Member]
Goodwill [Line Items]
Goodwill	24,959,000	24,959,000
Accumulated impairment Losses	(24,959,000)	(24,959,000)
Net Goodwill	0	0
Electronics Components Segment [Member]
Goodwill [Line Items]
Goodwill	11,621,000	11,621,000
Accumulated impairment Losses	(2,413,000)	(2,413,000)
Net Goodwill	9,208,000	9,208,000
All Other Category [Member]
Goodwill [Line Items]
Goodwill	6,850,000	6,850,000
Accumulated impairment Losses	(5,685,000)	(5,685,000)
Net Goodwill	$ 1,165,000	$ 1,165,000