Note 12 - Segment Information (Tables)

6 Months Ended

Dec. 31, 2012

Revenue By Segment [Member]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended December 31,				Six Months Ended December 31,
	2012		2011		2012		2011
Revenue
Power Supplies	$	1,229	$	1,984	$	2,773	$	4,187
Storage:
Product		1,532		1,098		2,754		2,807
Service		594		473		1,281		1,185
Total storage	$	2,126	$	1,571	$	4,035	$	3,992
Total revenue	$	3,355	$	3,555	$	6,808	$	8,179

(Loss) Income Before Taxes By Segment [Member]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended December 31,						Six Months Ended December 31,
	2012			2011			2012			2011
(Loss) Income before Taxes
Power Supplies	$	(278	)	$	(1	)	$	(576	)	$	192
Storage		(1,395	)		(970	)		(3,043	)		(1,106	)
Total loss before Taxes	$	(1,673	)	$	(971	)	$	(3,619	)	$	(914	)

Total Assets By Segment [Member]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	December 31, 2012		June 30, 2012
Total Assets
Cash and Marketable Securities:
Cash and cash equivalents	$	6,482	$	7,381
Marketable securities		11,361		13,504
Total Cash and Marketable Securities	$	17,843	$	20,885
Power supplies and Storage:
Power Supplies		775		2,142
Storage		6,896		5,797
Power Supplies and Storage	$	7,671	$	7,939
Total assets	$	25,514	$	28,824