Note 3 - Business Segment And Major Customers Information (Detail) - Identifiable Assets by Business Segments (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Jun. 30, 2012
Identifiable Assets:
Identifiable Assets	$ 167,778	$ 175,226
Lighting Segment [Member]
Identifiable Assets:
Identifiable Assets	87,403	93,661
Graphics Segment [Member]
Identifiable Assets:
Identifiable Assets	25,475	27,377
Electronics Components Segment [Member]
Identifiable Assets:
Identifiable Assets	32,840	31,805
All Other Category [Member]
Identifiable Assets:
Identifiable Assets	5,874	8,185
Corporate and Eliminations [Member]
Identifiable Assets:
Identifiable Assets	$ 16,186	$ 14,198