Note 3 - Business Segment And Major Customers Information (Detail) - Summarized Financial Information by Reportable Business Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012		Dec. 31, 2011
Net Sales	$ 71,082	[1]	$ 68,774	[1]	$ 145,801	[1]	$ 134,269	[1]
Operating Income (Loss)	(2,709)		1,219		318		3,397
Capital Expenditures	1,797		885		3,133		1,677
Depreciation and Amortization	1,826		1,979		3,676		3,944
Lighting Segment [Member]
Net Sales	53,743		53,526		109,534		102,697
Operating Income (Loss)	2,477		2,832		6,990		6,136
Capital Expenditures	578		470		894		939
Depreciation and Amortization	1,139		1,238		2,304		2,458
Graphics Segment [Member]
Net Sales	10,532		10,091		21,277		20,579
Operating Income (Loss)	(1,140)		(868)		(1,495)		(1,449)
Capital Expenditures	145		337		363		446
Depreciation and Amortization	224		214		446		440
Electronics Components Segment [Member]
Net Sales	4,959		4,215		10,713		8,619
Operating Income (Loss)	(1,559)		689		(773)		1,754
Capital Expenditures	196		14		329		111
Depreciation and Amortization	333		267		653		530
All Other Category [Member]
Net Sales	1,848		942		4,277		2,374
Operating Income (Loss)	(1,429)		(228)		(1,431)		(367)
Capital Expenditures	27		27		57		134
Depreciation and Amortization	46		56		93		110
Corporate and Eliminations [Member]
Operating Income (Loss)	(1,058)		(1,206)		(2,973)		(2,677)
Capital Expenditures	851		37		1,490		47
Depreciation and Amortization	$ 84		$ 204		$ 180		$ 406

[1] Net sales are attributed to geographic areas based upon the location of the operation making the sale.