Note 3- Business Segment Information (Details) - Inter-segment Revenues (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Lighting Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Inter-segment net sales	$ 445	$ 925	$ 1,497	$ 1,823
Graphics Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Inter-segment net sales	147	195	856	400
Electronics Components Segment [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Inter-segment net sales	7,675	9,450	14,947	17,954
All Other Category [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Inter-segment net sales	$ 3,618	$ 2,037	$ 5,171	$ 4,192