Note 5 - Balance Sheet Details (Tables)

9 Months Ended

Sep. 30, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	September 30, 2017		December 31, 2016
	( unaudited )
Raw materials	$	32	$	45
Finished goods		1,050		1,315
Net inventory balance	$	1,082	$	1,360

Property, Plant and Equipment [Table Text Block]

	September 30, 2017			December 31, 2016
	( unaudited )
Leasehold improvements	$	114		$	114
Furniture and fixtures		317			314
Machinery and equipment		1,020			1,039
		1,451			1,467
Less accumulated depreciation and amortization		(1,279	)		(1,181	)
Property and equipment, net	$	172		$	286

Schedule of Other Accrued Liabilities [Table Text Block]

	September 30, 2017		December 31 , 201 6
	( unaudited )
Accrued warranty	$	283	$	236
Accrued outside commissions		41		28
Accrued contingent legal fees		21		25
Deferred rent		29		37
Other accrued liabilities		4		33
Total other accrued liabilities	$	378	$	359