Business Segment, Concentration of Credit Risk and Significant Customers

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Business Segment, Concentration of Credit Risk and Significant Customers

Note 8: Business Segment, Concentration of Credit Risk and Significant Customers

The Company operates in one business segment and uses one measurement of profitability for its business. Revenue attributed to the United States and to all foreign countries is based on the geographical location of the customer.

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist principally of cash, cash equivalents, investments and accounts receivable. Cash, cash equivalents and investments are deposited with high credit-quality institutions.

The Company recognized revenue from licensing of its technologies and shipment of ICs to customers in the following geographical locations (in thousands):

	Year Ended
	December 31,
	2020		2019
North America	$	5,454	$	7,585
Japan		675		1,734
Taiwan		459		345
Rest of world		207		422
Total net revenue	$	6,795	$	10,086

Customers who accounted for at least 10% of total net revenues were:

	Year Ended
	December 31,
	2020			2019
Customer A		37	%		30	%
Customer B		22	%		14	%
Customer C		10	%		17	%
Customer D		10	%	*
Customer E	*				13	%

* Represents percentage less than 10%.

Three customers accounted for 86% of net accounts receivable at December 31, 2020. Four customers accounted for 85% of net accounts receivable at December 31, 2019.

All net long-lived assets (property and equipment) were held in the United States.