Note 3 - Business Segment And Major Customers Information (Detail) - Inter-segment revenues (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Lighting Segment [Member]
Inter-segment net sales	$ 855	$ 569	$ 1,512	$ 1,168
Graphics Segment [Member]
Inter-segment net sales	449	178	1,286	325
Electronics Components Segment [Member]
Inter-segment net sales	7,283	4,919	13,619	9,737
All Other Category [Member]
Inter-segment net sales	$ 1,388	$ 2,446	$ 2,254	$ 3,491