Segment Information and Foreign Operations (Tables)

6 Months Ended

Jun. 30, 2016

Segment Information and Foreign Operations

Revenue reported for products shipped to customers in the corresponding geographic region

The following table represents revenue amounts (in thousands) reported for products shipped to customers in the corresponding geographic region:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
Taiwan	$	4,649	$	3,414	$	8,784	$	6,523
Europe (primarily Germany)		4,573		5,664		8,951		10,607
China		4,183		3,561		7,275		6,858
Japan		2,695		2,753		4,597		5,237
Asia Pacific (excluding China, Taiwan and Japan)		2,402		2,768		5,152		5,527
North America (primarily the United States)		1,993		2,850		4,449		6,322
Total	$	20,495	$	21,010	$	39,208	$	41,074

Long-lived assets by geographic region

Long-lived assets consist primarily of property, plant and equipment, and are attributed to the geographic location in which they are located. Long-lived assets by geographic region were as follows (in thousands):

	As of
	June 30,		December 31,
	2016		2015
Long-lived assets by geographic region:
North America	$	919	$	542
China		29,259		30,880
	$	30,178	$	31,422