Note 14 - Income (Loss) Before Taxes by Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Loss before Taxes
Power Supplies	$ (487)	$ (2,169)	$ (1,054)	$ (4,947)
Power Supplies [Member]
Loss before Taxes
Power Supplies	(188)	(392)	(593)	(779)
Tape Libraries [Member]
Loss before Taxes
Power Supplies	$ (299)	$ (1,777)	$ (461)	$ (4,168)