Segment Reporting and Geographic Information

6 Months Ended

Jun. 30, 2019

Segment Reporting And Geographic Information [Abstract]

Segment Reporting and Geographic Information

NOTE 17. Segment Reporting and Geographic Information

The Company is engaged in the design, development, manufacture and support of high-performance control metrology, defect inspection, advanced packaging lithography and data analysis systems used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment: the design, development, manufacture and support of high-performance process control defect inspection and metrology, advanced packaging lithography and process control software systems used by microelectronics device manufacturers.  Therefore, the Company has one reportable segment.  The Company’s chief operating decision maker is the Chief Executive Officer (the “CEO”).  The CEO allocates resources and assesses performance of the business and other activities at the reportable segment level.

The following table lists the different sources of revenue:

	Three Months Ended								Six Months Ended
	June 30,								June 30,
	2019				2018				2019				2018
Systems and Software:
Process control	$	44,253	72	%	$	56,262	72	%	$	83,411	68	%	$	104,295	70	%
Lithography		62	—	%		3,851	5	%		3,676	3	%		11,921	7	%
Software licensing, support and maintenance		7,297	12	%		7,547	10	%		14,334	12	%		15,002	10	%
Parts		7,073	11	%		6,758	9	%		15,150	12	%		13,742	9	%
Services		2,826	5	%		3,058	4	%		5,832	5	%		5,612	4	%
Total revenue	$	61,511	100	%	$	77,476	100	%	$	122,403	100	%	$	150,572	100	%

The Company’s significant operations outside the United States include sales, service and application offices in Europe and Asia.  For geographical revenue reporting, revenue is attributed to the geographic location to which the product is shipped.  Revenue by geographic region is as follows:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Revenue from third parties:
United States	$	8,932	$	8,800	$	18,063	$	17,868
Taiwan		7,111		10,943		18,142		25,410
Japan		3,427		5,818		7,367		9,948
China		24,177		23,347		40,221		41,318
South Korea		10,775		16,374		21,546		33,604
Singapore		1,596		3,059		3,612		7,341
Other Asia		1,047		501		2,039		2,418
Germany		674		3,818		2,524		5,142
Other Europe		3,772		4,816		8,889		7,523
Total revenue	$	61,511	$	77,476	$	122,403	$	150,572

The following customer accounted for more than 10% of total revenue for the indicated periods:

	Six Months Ended June 30,
	2019			2018
Customer A		24.6	%		11.6	%