Segment Information and Foreign Operations (Tables)

3 Months Ended

Mar. 31, 2021

Segment Information and Foreign Operations

Revenues reported by product type

The following table represents revenue amounts (in thousands) by product type:

	Three Months Ended
	March 31,
	2021		2020
Product Type:
Substrates	$	23,373	$	16,881
Raw Materials and Other		7,977		3,842
Total	$	31,350	$	20,723

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,
	2021		2020
Geographical region:
China	$	15,546	$	4,724
Taiwan		3,015		5,177
Japan		2,523		1,334
Asia Pacific (excluding China, Taiwan and Japan)		1,817		1,356
Europe (primarily Germany)		5,435		6,214
North America (primarily the United States)		3,014		1,918
Total	$	31,350	$	20,723

Long-lived assets by geographic region

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

	As of
	March 31,		December 31,
	2021		2020
Long-lived assets by geographic region, net of depreciation:
North America	$	1,015	$	836
China		121,439		117,672
	$	122,454	$	118,508