Note 3 - Segment Reporting Information (Details Textual) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Number of Operating Segments			3
Intersegment Revenue Markup Percentage			10.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage	0.00%	0.00%	0.00%	0.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member]
Concentration Risk, Percentage			0.00%		0.00%
Reclassification of Operating Loss from the Technology Segment to the Graphics Segment [Member] | Third Quarter of Fiscal 2016 [Member]
Prior Period Reclassification Adjustment	$ 96,000
Reclassification of Operating Loss from the Technology Segment to the Graphics Segment [Member] | First Nine Months of Fiscal 2016 [Member]
Prior Period Reclassification Adjustment	$ 99,000