Note 2- Business Segment Information (Details) - Identifiable Assets by Segment (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Identifiable Assets:
Identifiable Assets	$ 169,888	$ 169,179	$ 175,226	$ 176,021	$ 173,845
Lighting Segment [Member]
Identifiable Assets:
Identifiable Assets	96,499	90,536
Graphics Segment [Member]
Identifiable Assets:
Identifiable Assets	22,312	28,792
Electronics Components Segment [Member]
Identifiable Assets:
Identifiable Assets	30,788	30,926
All Other Category [Member]
Identifiable Assets:
Identifiable Assets	4,987	6,361
Corporate and Eliminations [Member]
Identifiable Assets:
Identifiable Assets	$ 15,302	$ 12,564