Note 13 - Customer and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

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

	Year Ended December 31,
Customer	2019			2018
A		31	%		37	%

	December 31,
Customer	2019			2018
A		27	%		35	%
B		14	%		9	%
C		12	%		21	%

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

	Year Ended December 31,
	2019					2018
	Revenues		Percentage of Revenues			Revenues		Percentage of Revenues
United States	$	36,169		42	%	$	34,179		40	%
China		13,960		16			17,465		20
Taiwan		8,574		10			7,890		9
Japan		5,829		7			5,240		6
Rest of the world		21,053		25			21,020		25
Total revenue	$	85,585		100	%	$	85,794		100	%

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

	December 31,
		2019(1)		2018(2)
United States	$	46,000	$	35,173
Rest of the world		2,407		508
Total long-lived assets, net	$	48,407	$	35,681