Note 3 - Business Segment Information (Details) - Identifiable Assets by Segment (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Jun. 30, 2013
Identifiable Assets:
Identifiable Assets	$ 167,870	$ 169,179
Lighting Segment [Member]
Identifiable Assets:
Identifiable Assets	93,593	90,536
Graphics Segment [Member]
Identifiable Assets:
Identifiable Assets	21,612	28,792
Electronics Components Segment [Member]
Identifiable Assets:
Identifiable Assets	30,800	30,926
All Other Category [Member]
Identifiable Assets:
Identifiable Assets	5,437	6,361
Corporate and Eliminations [Member]
Identifiable Assets:
Identifiable Assets	$ 16,428	$ 12,564