Segment Information and Foreign Operations (Tables)

3 Months Ended

Mar. 31, 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
	March 31,
	2024		2023
Product Type:
Substrates	$	16,903	$	13,489
Raw Materials and Other		5,785		5,916
Total	$	22,688	$	19,405

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,
	2024		2023
Geographical region:
China	$	11,517	$	8,102
Taiwan		4,582		2,471
Japan		990		1,535
Asia Pacific (excluding China, Taiwan and Japan)		798		1,091
Europe (primarily Germany)		3,725		3,570
North America (primarily the United States)		1,076		2,636
Total	$	22,688	$	19,405

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,
	2024		2023
Long-lived assets by geographic region, net of depreciation:
North America	$	1,562	$	1,631
China		164,217		167,516
	$	165,779	$	169,147