Note 9 - Geographic Information and Major Customer Data (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Nine months ended September 30,				Three months ended September 30,
	2019 (unaudited)		2018 (unaudited)		2019 (unaudited)		2018 (unaudited)
Revenues based on customer location:
United States	$	7,713	$	6,087	$	3,811	$	2,259
Europe and Middle East (1)		13,245		11,305		6,911		6,139
Asia Pacific (2) (3) (4)		37,882		39,084		12,749		13,015
	$	58,840	$	56,476	$	23,471	$	21,413
(1) Germany	$	10,613	$	8,582	$	5,425	$	5,600
(2) China	$	25,542	$	23,127	$	8,993	$	10,192
(3) S. Korea	$	*)	$	7,152	$	*)	$	*)
(4) Japan	$	6,544	$	6,116	$	*)	$	*)

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Nine months ended September 30,						Three months ended September 30,
	2019 (unaudited)			2018 (unaudited)			2019 (unaudited)			2018 (unaudited)
Customer A		19	%		16	%		23	%		26	%
Customer B		15	%		16	%		15	%		16	%
Customer C		*)			12	%		*)			*)