Note 5 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Tax Expense (Benefit), Continuing Operations by Jurisdiction [Table Text Block]

	Year ended December 31,
	2014		2013		2012
United States tax provision	$	7	$	16	$	7
Foreign tax provision		31		30		5
Total income tax provision	$	38	$	46	$	12

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	Year ended December 31,
	2014			2013
Current deferred tax assets:
Inventories	$	279		$	325
Trade accounts receivable		11			6
Deferred revenue		15			325
Other accruals		827			605
Total current deferred tax assets	$	1,132		$	1,261
Noncurrent deferred tax assets:
Depreciation	$	161		$	239
Other		417			377
Net operating loss carryforwards		17,934			16,323
Total noncurrent deferred tax assets	$	18,512		$	16,939
Valuation allowance for deferred tax assets		(19,644	)		(18,200	)
Deferred tax assets, net of valuation allowance	$	-		$	-

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Year ended December 31,
	2014			2013			2012
Income tax benefit at statutory rate	$	(1,465	)	$	(903	)	$	(1,283	)
State provision		28			4			2
French permanent items		-			117			(84	)
Foreign income inclusion		1			(7	)		(5	)
Adjustment to deferred tax assets		32			40			(66	)
Other		(2	)		10			(11	)
Change in valuation allowance		1,444			785			1,459
Income tax provision	$	38		$	46		$	12

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	Unrecognized
	Tax Benefit
Balance as of January 1, 2013	$	820
Additions based on tax positions - previous years		32
Effect of exchange rate changes		33
Balance as of December 31, 2013		885
Additions based on tax positions - previous years		31
Effect of exchange rate changes		(106	)
Balance as of December 31, 2014	$	810