Segment Reporting and Geographic Information

12 Months Ended

Dec. 31, 2016

Segment Reporting and Geographic Information [Abstract]

Segment Reporting Disclosure [Text Block]

Segment Reporting and Geographic Information:

The Company is engaged in the design, development, manufacture and support of process control defect inspection and metrology, advanced packaging lithography and data analysis systems and software used by microelectronics device manufacturers. The Company and its subsidiaries currently operate in a single operating segment: the design, development, manufacture and support of process control defect inspection and metrology, advanced packaging lithography, and data analysis systems and software used by microelectronics device manufacturers, and therefore have one reportable segment. The Company’s chief operating decision maker is the Chief Executive Officer. The chief operating decision maker 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:

	Year Ended December 31,
	2016				2015				2014
Systems and software:
Process Control	$	146,652	63	%	$	144,858	66	%	$	112,408	63	%
Lithography	18,949		8	%	14,519		6	%	11,163		6	%
Software	29,795		13	%	27,291		12	%	24,042		13	%
Parts	25,343		11	%	24,072		11	%	20,334		11	%
Services	12,041		5	%	10,950		5	%	13,271		7	%
Total revenue	$	232,780	100	%	$	221,690	100	%	$	181,218	100	%

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

	Year Ended December 31,
	2016		2015		2014
Revenues from third parties:
United States	$	30,876	$	46,778	$	56,963
Taiwan	68,211		55,548		49,532
South Korea	15,556		14,221		16,690
Singapore	35,517		27,310		14,551
Austria	2,049		3,557		752
Japan	11,875		13,216		9,449
Germany	9,759		29,378		9,142
China	33,720		17,152		11,521
Other Europe	18,720		11,403		9,362
Other Asia	6,497		3,127		3,256
Total revenue	$	232,780	$	221,690	$	181,218

No individual end user customer accounted for more than 10% of the Company’s revenue in 2016, 2015 and 2014. The Company does not have purchase contracts with any of its customers that obligate them to continue to purchase its products.

At December 31, 2016 and December 31, 2015, one customer, Taiwan Semiconductor Manufacturing Co. Ltd., accounted for more than 10% of net accounts receivable.

Substantially all of the Company’s long-lived assets are located within the United States of America.