Note 16 - Segment and Geographic Information

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

16.  SEGMENT AND GEOGRAHPIC INFORMATION 

The Company operates in one reportable segment that includes the design, development, marketing and sale of high-performance, mixed-signal analog semiconductors for the communications, storage and computing, consumer and industrial markets. The Company’s chief operating decision maker is its chief executive officer, who reviews financial information presented on a consolidated basis. 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	2014		2013		2012
China	$	181,050	$	141,400	$	124,278
Taiwan		38,460		34,248		27,477
Europe		19,830		15,351		16,201
Korea		14,362		9,992		9,434
Southeast Asia		13,993		21,760		21,641
Japan		8,251		7,495		8,516
United States		6,392		7,525		5,711
Other		197		320		555
Total	$	282,535	$	238,091	$	213,813

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

	Year Ended December 31,
Product Family	2014		2013		2012
DC to DC products	$	253,083	$	211,337	$	188,736
Lighting control products		29,452		26,754		25,077
Total	$	282,535	$	238,091	$	213,813

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

	As of December 31,
Country	2014		2013
China	$	37,147	$	41,557
United States		33,913		24,719
Bermuda		13,383		-
Other		339		205
Total	$	84,782	$	66,481