Segment Information

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Segment Information

4. Segment Information

Operating segments are defined as components of an enterprise about which separate financial information is available that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing performance.

The Company’s chief operating decision maker, the chief executive officer, reviews financial information presented on a consolidated basis for purposes of making operating decisions and assessing financial performance on a regular basis. Accordingly, the Company considers itself to be one reportable segment, which is comprised of one operating segment - the designing, marketing and selling of mixed-signal integrated circuits for the security surveillance and automotive markets.

Product revenue from customers is designated based on the geographic region to which the product is delivered. Revenue by geographic region was as follows (in thousands):

	Three Months Ended March 31,
	2022		2021
China	$	11,257	$	10,159
Taiwan		2,244		2,414
South Korea		1,470		1,642
Japan		638		172
Other		419		169
Total revenue	$	16,028	$	14,556

Revenue by principal product lines was as follows (in thousands):

	Three Months Ended March 31,
	2022		2021
Automotive	$	9,537	$	6,305
Security surveillance		6,491		8,251
Total revenue	$	16,028	$	14,556

Long-lived assets by geographic region were as follows (in thousands):

	March 31,		December 31,
	2022		2021
Taiwan	$	464	$	415
China	$	189	$	207
United States		72		79
South Korea		6		7
Japan		4		5
Total property and equipment - net	$	735	$	713