Note 16 - Segment and Geographic Information

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

16.  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 electronics solutions for the computing and storage, 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 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 regions (in thousands):

	Year Ended December 31,
Country or Region	2021		2020		2019
China	$	700,985	$	516,519	$	382,740
Taiwan		169,130		109,256		73,801
Europe		85,201		56,329		49,467
South Korea		93,027		64,093		43,900
Southeast Asia		54,611		42,403		32,031
Japan		68,720		35,461		27,812
United States		35,770		20,098		17,836
Other		354		293		334
Total	$	1,207,798	$	844,452	$	627,921

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

	Year Ended December 31,
Product Family	2021		2020		2019
DC to DC	$	1,147,329	$	800,478	$	589,651
Lighting Control		60,469		43,974		38,270
Total	$	1,207,798	$	844,452	$	627,921

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

	December 31,
Country	2021		2020		2019
China	$	211,973	$	151,752	$	113,888
United States		113,805		101,768		94,671
Taiwan		19,607		18,797		17,652
Other		17,577		9,211		2,104
Total	$	362,962	$	281,528	$	228,315