Segment Reporting and Geographic Information

12 Months Ended

Dec. 31, 2015

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,
	2015				2014				2013
Systems and software:
Inspection	$	118,925	54	%	$	87,818	49	%	$	89,089	51	%
Metrology	25,933		12	%	24,590		14	%	26,500		15	%
Data analysis and review	27,291		12	%	24,042		13	%	17,927		10	%
Lithography	14,519		6	%	11,163		6	%	8,548		5	%
Parts	24,072		11	%	20,334		11	%	21,078		12	%
Services	10,950		5	%	13,271		7	%	13,096		7	%
Total revenue	$	221,690	100	%	$	181,218	100	%	$	176,238	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,
	2015		2014		2013
Revenues from third parties:
United States	$	46,778	$	56,963	$	40,849
Taiwan	55,548		49,532		54,682
South Korea	14,221		16,690		10,704
Singapore	27,310		14,551		15,804
Austria	3,557		752		898
Japan	13,216		9,449		7,326
Germany	29,378		9,142		5,669
China	17,152		11,521		20,061
Other Europe	11,403		9,362		18,789
Other Asia	3,127		3,256		1,456
Total revenue	$	221,690	$	181,218	$	176,238

No individual end user customer accounted for more than 10% of the Company's revenue in 2015 and 2014. In 2013, sales to Intel Semiconductor Inc. and STATS ChipPAC Ltd. accounted for 11.4% and 10.3% of the Company’s revenues, respectively. The Company does not have purchase contracts with any of its customers that obligate them to continue to purchase its products.

At December 31, 2015, one customer, Taiwan Semiconductor Manufacturing Co. Ltd., accounted for more than 10% of net accounts receivable. At December 31, 2014, two customers, Taiwan Semiconductor Manufacturing Co. Ltd. and TriQuint Semiconductor Inc., 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.