Note 7 - Customer and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2016

Notes Tables

Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block]

	Three Months Ended June 30,						Six Months Ende d June 30,
Customer	2016			2015			2016			2015
A		39	%		54	%		44	%		49	%
B		*	%		16	%		*	%		13	%
C		*	%		*	%		12	%		17	%
D		13	%		*	%		*	%		*	%

Receivables by Major Customers [Table Text Block]

Customer	June 30 , 2016			December 31, 2015
A		50	%		65	%
D		12	%		*	%

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended June 30 ,
	2016					2015
	Revenues		Percentage of Revenues			Revenues		Percentage of Revenues
United States	$	9,518		36	%	$	11,436		49	%
Taiwan		5,725		21			2,160		9
Germany		3,994		15			6,345		27
South Korea		2,184		8			627		3
Rest of the world		5,267		20			2,642		12
Total revenue	$	26,688		100	%	$	23,210		100	%

	Six Months Ended June 30,
	2016					2015
	Revenues		Percentage of Revenues			Revenues		Percentage of Revenues
United States	$	21,640		42	%	$	21,750		43	%
Taiwan		7,909		15			3,279		7
Germany		7,028		14			12,609		25
South Korea		5,497		11			7,545		15
Rest of the world		9,695		18			4,844		10
Total revenue	$	51,769		100	%	$	50,027		100	%

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

	June 30 , 2016		December 31, 2015
United States	$	15,559	$	10,752
Rest of the world		517		573
Total long-lived assets, net	$	16,076	$	11,325