Note 12 - Segment Information (Details) - (Loss) Income Before Taxes by Segment (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes	$ (2,169)	$ (3,301)	$ (4,947)	$ (6,920)
Power Supplies [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes	(392)	(262)	(779)	(828)
Storage [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes	$ (1,777)	$ (3,039)	$ (4,168)	$ (6,092)