Note 12 - Segment Information (Tables)

9 Months Ended

Mar. 31, 2014

Note 12 - Segment Information (Tables) [Line Items]

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

	Three Months Ended March 31,				Nine Months Ended March 31,
	2014		2013		2014		2013
Revenue
Power Supplies	$	1,525	$	1,969	$	4,321	$	4,742
Storage:
Product		457		793		2,301		3,547
Service		580		190		1,570		1,471
Total storage	$	1,037	$	983	$	3,871	$	5,018
Total revenue	$	2,562	$	2,952	$	8,192	$	9,760

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

	March 31, 2014		June 30, 2013
Total Assets
Cash and marketable securities:
Cash and cash equivalents	$	4,823	$	1,966
Marketable securities		2,917		11,851
Total cash and marketable securities	$	7,740	$	13,817
Other assets:
Power Supplies		2,529		2,893
Storage		3,543		3,497
Total other assets	$	6,072	$	6,390
Total assets	$	13,812	$	20,207

(Loss) Income Before Taxes By Segment [Member]

Note 12 - Segment Information (Tables) [Line Items]

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

	Three Months Ended March 31,						Nine Months Ended March 31,
	2014			2013			2014			2013
Loss before Taxes
Power Supplies	$	(392	)	$	(262	)	$	(779	)	$	(828	)
Storage		(1,777	)		(3,039	)		(4,168	)		(6,092	)
Total loss before taxes	$	(2,169	)	$	(3,301	)	$	(4,947	)	$	(6,920	)