Note 11 - Segment Information (Details) - Income Before Taxes by Segment (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes	$ (3,443)	$ (3,301)	$ (1,673)	$ (1,946)	$ (10,363)	$ (4,107)	$ (680)
Power Supplies [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes					(1,239)	356	944
Tape Libraries [Member]
Segment Reporting, Other Significant Reconciling Item [Line Items]
(Loss) Income Before Taxes					$ (9,124)	$ (4,463)	$ (1,624)