Note 16 - Segment and Geographic Information

12 Months Ended

Dec. 31, 2019

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

	Year Ended December 31,
Country or Region	2019		2018		2017
China	$	382,740	$	334,726	$	257,787
Taiwan		73,801		75,307		83,357
Europe		49,467		49,484		38,140
Korea		43,900		41,238		34,155
Southeast Asia		32,031		36,495		25,755
Japan		27,812		26,853		20,187
United States		17,836		17,621		11,113
Other		334		658		435
Total	$	627,921	$	582,382	$	470,929

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

	Year Ended December 31,
Product Family	2019		2018		2017
DC to DC	$	589,651	$	537,512	$	431,861
Lighting Control		38,270		44,870		39,068
Total	$	627,921	$	582,382	$	470,929

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

	December 31,
Country	2019		2018		2017
China	$	113,888	$	93,096	$	89,472
United States		94,671		39,054		37,539
Taiwan		17,652		16,972		17,238
Other		2,104		879		387
Total	$	228,315	$	150,001	$	144,636

In 2019, the Company revised this disclosure presentation to exclude certain non-current items primarily related to goodwill and deferred compensation assets in accordance with ASC 280, Segment Reporting.  Prior-year amounts have been corrected.  These changes did not impact the Consolidated Balance Sheets.