Note 11 - Segment Information (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	201 9		201 8		201 9		201 8
Revenue
Power Supplies	$	1,450	$	1,612	$	4,117	$	4,598
Storage:
Product		1,148		789		3,060		1,973
Service		1,105		753		2,821		2,749
Total storage	$	2,253	$	1,542	$	5,881	$	4,722
Revenue	$	3,703	$	3,154	$	9,998	$	9,320

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended September 30,					Nine Months Ended September 30,
	2019			2018		2019			2018
Income (Loss) before Taxes
Power Supplies	$	(141	)	$	164	$	(497	)	$	181
Storage		190			241		676			1,288
Income (loss) before taxes	$	49		$	405	$	179		$	1,469

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

	September 30, 201 9		December 31, 201 8
Total Assets	( unaudited )
Power Supplies
Cash and cash equivalents	$	285	$	381
Accounts receivable, net		948		1,048
Inventories, net		1,261		1,576
Property and equipment, net		12		47
Other assets		115		102
Total power supply assets		2,621		3,154
Storage
Cash and cash equivalents	$	3,986	$	4,400
Restricted cash		100		100
Accounts receivable, net		1,229		761
Inventories, net		1,467		1,321
Prepaid expenses and other current assets		240		168
Property and equipment, net		120		65
Other assets		762		29
Total storage assets		7,904		6,844
Total Assets	$	10,525	$	9,998