Note 3 - Business Segment Information (Details) - Identifiable Assets by Segment (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Identifiable Assets:
Identifiable Assets	$ 172,104	$ 169,179
Lighting Segment [Member]
Identifiable Assets:
Identifiable Assets	93,672	90,536
Graphics Segment [Member]
Identifiable Assets:
Identifiable Assets	26,483	28,792
Electronics Components Segment [Member]
Identifiable Assets:
Identifiable Assets	31,740	30,926
All Other Category [Member]
Identifiable Assets:
Identifiable Assets	6,727	6,361
Corporate and Eliminations [Member]
Identifiable Assets:
Identifiable Assets	$ 13,482	$ 12,564