Note 3 - Business Segment Information (Details) - Identifiable Assets by Segment (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013
Identifiable Assets:
Identifiable Assets	$ 171,974	$ 169,179
Lighting Segment [Member]
Identifiable Assets:
Identifiable Assets	95,172	90,536
Graphics Segment [Member]
Identifiable Assets:
Identifiable Assets	23,250	28,792
Electronics Components Segment [Member]
Identifiable Assets:
Identifiable Assets	32,414	30,926
All Other Category [Member]
Identifiable Assets:
Identifiable Assets	6,388	6,361
Corporate and Eliminations [Member]
Identifiable Assets:
Identifiable Assets	$ 14,750	$ 12,564