Note 3 - Segment Reporting Information (Details Textual) - USD ($)	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	0.00%	0.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	0.00%	0.00%
Reclassification of Operating Income from the Technology Segment to the Graphics Segment [Member] | First Quarter of Fiscal 2016 [Member]
Prior Period Reclassification Adjustment	$ 73,000
Customer Relationships [Member] | Graphics Segment [Member]
Intangible Assets, Net (Excluding Goodwill)	$ 505,000
Number of Operating Segments	3
Intangible Assets, Net (Excluding Goodwill)	$ 5,479,000		$ 5,586,000
Intersegment Revenue Markup Percentage	10.00%