Note 15 - Segment and Geographic Information

12 Months Ended

Dec. 31, 2023

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

15.  SEGMENT AND GEOGRAPHIC INFORMATION

The Company operates in one reportable segment that includes the design, development, marketing and sale of high-performance, semiconductor-based power electronic solutions for the storage and computing, enterprise data, automotive, industrial, communications and consumer markets. The Company’s chief operating decision maker is its Chief Executive Officer, who reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. The Company derives a majority of its revenue from sales to customers located outside North America, with geographic revenue based on the customers’ ship-to locations.  

The following is a summary of revenue by geographic region (in thousands):

	Year Ended December 31,
Country or Region	2023		2022		2021
China	$	934,768	$	938,946	$	700,985
Taiwan		307,499		233,040		169,130
South Korea		169,867		189,478		93,027
Europe		132,620		145,584		85,201
United States		97,294		99,804		35,770
Japan		93,340		91,048		68,720
Southeast Asia		85,150		95,739		54,611
Other		534		509		354
Total	$	1,821,072	$	1,794,148	$	1,207,798

The following is a summary of revenue by major product family (in thousands):

	Year Ended December 31,
Product Family	2023		2022		2021
DC to DC	$	1,718,623	$	1,696,594	$	1,147,329
Lighting Control		102,449		97,554		60,469
Total	$	1,821,072	$	1,794,148	$	1,207,798

The following is a summary of long-lived assets by geographic region (in thousands): 

	December 31,
Country	2023		2022		2021
China	$	184,685	$	200,508	$	211,973
United States		119,430		113,996		113,805
Taiwan		39,419		20,074		19,607
Other		25,418		22,579		17,577
Total	$	368,952	$	357,157	$	362,962