Segment Information and Foreign Operations (Tables)

6 Months Ended

Jun. 30, 2024

Segment Information and Foreign Operations

Revenues reported by product type

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2024		2023		2024		2023
Product Type:
Substrates	$	19,745	$	11,027	$	36,648	$	24,516
Raw Materials and Other		8,178		7,568		13,963		13,484
Total	$	27,923	$	18,595	$	50,611	$	38,000

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,
	2024		2023		2024		2023
Geographical region:
China	$	16,947	$	10,289	$	28,464	$	18,391
Taiwan		3,420		1,407		8,002		3,878
Japan		796		1,396		1,786		2,931
Asia Pacific (excluding China, Taiwan and Japan)		712		737		1,510		1,828
Europe (primarily Germany)		4,689		3,015		8,414		6,585
North America (primarily the United States)		1,359		1,751		2,435		4,387
Total	$	27,923	$	18,595	$	50,611	$	38,000

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
	June 30,		December 31,
	2024		2023
Long-lived assets by geographic region, net of depreciation:
North America	$	1,493	$	1,631
China		162,370		167,516
	$	163,863	$	169,147