Note 7 - Segment, Significant Customers and Geographic Information

6 Months Ended

Jun. 30, 2021

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

7. SEGMENT, SIGNIFICANT CUSTOMERS AND GEOGRAPHIC INFORMATION

The Company operates in one reportable segment that includes the design, development, marketing and sale of high-performance analog 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 Company sells its products primarily through third-party distributors and value-added resellers, and directly to OEMs, ODMs and EMS providers. The following table summarizes those customers with sales equal to 10% or more of the Company's total revenue:  

	Three Months Ended June 30,						Six Months Ended June 30,
Customer	2021			2020			2021			2020
Distributor A		28	%		26	%		27	%		24	%
Distributor B		17	%		*			17	%		*

* Represents less than 10%.

The Company’s agreements with these third-party customers were made in the ordinary course of business and  may be terminated with or without cause by these customers with advance notice. Although the Company  may experience a short-term disruption in the distribution of its products and a short-term decline in revenue if its agreement with either of the distributors was terminated, the Company believes that such termination would not have a material adverse effect on its financial statements because it would be able to engage alternative distributors, resellers and other distribution channels to deliver its products to end customers within a short period following the termination of the agreement with the customer.

The following table summarizes those customers with accounts receivable equal to 10% or more of the Company’s total accounts receivable:  

	June 30,			December 31,
Customer	2021			2020
Distributor A		15	%		24	%
Distributor B		21	%		21	%
Value-added reseller A		16	%		13	%
Direct customer A		*			10	%

* Represents less than 10%.

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

	Three Months Ended June 30,				Six Months Ended June 30,
Country or Region	2021		2020		2021		2020
China	$	170,893	$	112,756	$	324,276	$	218,493
Taiwan		48,262		22,322		78,708		38,862
Europe		20,790		13,443		41,170		26,515
South Korea		18,992		12,573		38,279		23,517
Southeast Asia		12,188		11,622		23,686		20,402
Japan		14,552		8,756		26,602		15,646
United States		7,542		4,681		14,844		8,418
Other		98		56		207		134
Total	$	293,317	$	186,209	$	547,772	$	351,987

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

	Three Months Ended June 30,				Six Months Ended June 30,
Product Family	2021		2020		2021		2020
DC to DC	$	278,808	$	176,113	$	520,237	$	332,988
Lighting Control		14,509		10,096		27,535		18,999
Total	$	293,317	$	186,209	$	547,772	$	351,987

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

	June 30,		December 31,
Country	2021		2020
China	$	185,080	$	151,752
United States		112,295		101,768
Taiwan		18,981		18,797
Other		15,737		9,211
Total	$	332,093	$	281,528