Note 8 - Segment and Geographic Information

9 Months Ended

Sep. 30, 2019

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

8. SEGMENT 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 original equipment manufacturers, original design manufacturers and electronic manufacturing service providers. The following table summarizes those customers with sales equal to 10% or more of the Company's total revenue, or with accounts receivable balances equal to 10% or more of the Company’s total accounts receivable: 

	Revenue												Accounts Receivable
	Three Months Ended September 30,						Nine Months Ended September 30,						September 30,			December 31,
Customer	2019			2018			2019			2018			2019			2018
Company A (distributor)		24	%		23	%		23	%		21	%		25	%		25	%
Company B (distributor)		*			10	%		*			10	%		12	%		16	%
Company A (value-added reseller)		*			*			*			*			10	%		*

* Represents less than 10%.

The Company’s agreements with these third-party distributors and value-added resellers 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 any of these customers 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 is a summary of revenue by geographic regions (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Country or Region	2019		2018		2019		2018
China	$	105,857	$	91,509	$	276,892	$	245,580
Taiwan		18,547		20,774		55,912		55,315
Europe		12,047		12,579		38,071		36,696
Korea		11,990		11,406		31,224		30,046
Southeast Asia		7,904		11,259		23,698		28,261
Japan		8,150		6,895		21,084		18,994
United States		4,225		5,375		14,044		13,404
Other		93		178		258		589
Total	$	168,813	$	159,975	$	461,183	$	428,885

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

	Three Months Ended September 30,				Nine Months Ended September 30,
Product Family	2019		2018		2019		2018
DC to DC	$	159,723	$	147,727	$	432,125	$	394,492
Lighting Control		9,090		12,248		29,058		34,393
Total	$	168,813	$	159,975	$	461,183	$	428,885

The following is a summary of property and equipment, net, by geographic regions (in thousands):

	September 30,		December 31,
Country	2019		2018
China	$	105,030	$	93,096
United States		93,967		39,054
Taiwan		16,750		16,972
Other		1,296		879
Total	$	217,043	$	150,001