Note 11 - Segment Information (Details) - Segment Revenue (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 10,941	$ 12,642	$ 17,081
Power Supplies [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	5,874	6,489	9,420
Tape Libraries [Member] | Product [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	2,922	4,337	5,341
Tape Libraries [Member] | Service [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	2,145	1,816	2,320
Tape Libraries [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 5,067	$ 6,153	$ 7,661