Note 13 - Segment Information (Tables)

3 Months Ended

Sep. 30, 2014

Note 13 - Segment Information (Tables) [Line Items]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Three Months Ended September 30,
	2014		2013
Revenue
Power Supplies	$	1,399	$	953
Data Storage:
Product		1,367		824
Service		554		414
Total data storage	$	1,921	$	1,238
Total revenue	$	3,320	$	2,191

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	September 30, 2014		June 30, 2014
Total Assets
Cash and marketable securities:
Cash and cash equivalents	$	6,266	$	5,462
Marketable securities		450		1,763
Total cash and marketable securities	$	6,716	$	7,225
Other assets:
Power Supplies		2,168		2,329
Data Storage		3,799		3,231
Total other assets	$	5,967	$	5,560
Total assets	$	12,683	$	12,785

(Loss) Income Before Taxes By Segment [Member]

Note 13 - Segment Information (Tables) [Line Items]

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

	Three Months Ended September 30,
	2014			2013
Loss before Taxes
Power Supplies	$	(269	)	$	(318	)
Data Storage		(53	)		(2,209	)
Total loss before taxes	$	(322	)	$	(2,527	)