Note 7 - Goodwill And Other Intangible Assets (Detail) (USD $)	3 Months Ended			6 Months Ended			6 Months Ended									6 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012	Dec. 31, 2012 Electronics Components Segment [Member]	Jun. 30, 2012 Electronics Components Segment [Member]	Mar. 31, 2012 Electronics Components Segment [Member]	Dec. 31, 2012 All Other Category [Member]	Jun. 30, 2012 All Other Category [Member]	Mar. 31, 2012 All Other Category [Member]	Dec. 31, 2012 Lighting Segment [Member]	Jun. 30, 2012 Lighting Segment [Member]	Mar. 31, 2012 Lighting Segment [Member]	Dec. 31, 2012 LSI Virticus [Member]
Goodwill and Intangible Asset Impairment		$ 258,000		$ 2,141,000	$ 258,000
Goodwill Impairment Testing Value Above Carrying Value									7,700,000			1,800,000			28,800,000
Goodwill Impairment Testing Percent Value Above Carring Value									33.00%			155.00%			32.00%
Goodwill	10,780,000			10,780,000		12,921,000	9,480,000	11,621,000		1,165,000	1,165,000		135,000	135,000		2,413,000
Goodwill, Impairment Loss	2,141,000		0	2,141,000	258,000		2,141,000									2,141,000
Goodwill Impairment Percentage																89.00%
Amortization of Intangible Assets	$ 652		$ 646	$ 1,341	$ 1,292