Note 12 - Segment Information (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

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

	Three Months Ended March 31 ,
	2017		2016
Revenue	(unaudited)		(unaudited)
Power Supplies	$	1,691	$	1,349
Storage:
Product		421		328
Service		327		473
Total storage	$	748	$	801
Revenue	$	2,439	$	2,150

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

	March 31, 2017		December 31 , 2016
	(unaudited)
Total Assets
Cash and cash equivalents	$	3,740	$	3,691
Restricted cash		100		100
Other assets:
Power Supplies
Accounts receivable, net		1,373		1,158
Inventories, net		349		444
Property and equipment, net		38		35
Other assets		29		39
		1,789		1,676
Storage
Accounts receivable, net		573		425
Inventories, net		778		916
Property and equipment, net		206		251
Other assets		210		204
		1,767		1,796
Total Assets	$	7,396	$	7,263

(Loss) Income before Taxes by Segment [Member]

Notes Tables

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

	Three Months Ended March 31 ,
	2017		2016
Income (loss) before Taxes	(unaudited)		(unaudited)
Power Supplies	$	27	$	(125	)
Storage		31		(289	)
Income (loss) before taxes	$	58	$	(414	)