Segment Information and Foreign Operations (Tables)

3 Months Ended

Mar. 31, 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
	March 31,
	2016		2015
Europe (primarily Germany)	$	4,378	$	4,943
Taiwan		4,135		3,109
China		3,092		3,297
Asia Pacific (excluding China, Taiwan and Japan)		2,750		2,759
Japan		1,902		2,484
North America (primarily the United States)		2,456		3,472
Total	$	18,713	$	20,064

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
	March 31,		December 31,
	2016		2015
Long-lived assets by geographic region:
North America	$	695	$	542
China		30,446		30,880
	$	31,141	$	31,422