Note 7 - Customer and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

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

	Three Months						Nine Months
	Ended September 30,						Ended September 30,
Customer	2018			2017			2018			2017
A		38	%		38	%		39	%		41	%

Receivables by Major Customers [Table Text Block]

	September 30,			December 31,
Customer	2018			2017
A		41	%		41	%
B		19	%		15	%

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

	Three Months Ended September 30,
	2018					2017
	Revenues		Percentage of Revenues			Revenues		Percentage of Revenues
United States	$	8,366		41	%	$	9,750		37	%
China		4,644		23	%		6,452		24	%
Taiwan		936		5	%		2,414		9	%
Rest of the world		6,267		31	%		7,901		30	%
Total revenue	$	20,213		100	%	$	26,517		100	%

	Nine Months Ended September 30,
	2018					2017
	Revenues		Percentage of Revenues			Revenues		Percentage of Revenues
United States	$	27,430		42	%	$	30,610		41	%
China		14,186		21	%		12,891		17	%
Taiwan		4,109		6	%		9,894		13	%
Rest of the world		20,344		31	%		21,699		29	%
Total revenue	$	66,069		100	%	$	75,094		100	%

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

	September 30,		December 31,
	2018		2017
United States	$	33,690	$	24,883
Rest of the world		430		503
Total long-lived assets, net	$	34,120	$	25,386