Segment, Geographic and Customer Concentration Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Revenue by Countries and Customers Accounted For More Than 10%

The Company’s concentration of risk related to accounts receivable and accounts payable was as follows:

	March 31,	December 31,
	2022	2021
Number of customers accounted for 10% or more of accounts receivable	2	3
Number of vendors accounted for 10% or more of accounts payable	4	1

Revenue by country and number of customers that accounted for more than 10% of revenue was as follows:

	Three Months Ended March 31,
	2022		2021
Countries over 10% of revenue:
U.S.	(23	%)	26	%
China	32	%	45	%
Sweden	24	%	13	%
Korea	20	%	*
Japan	18	%	*
Number of customers that accounted for over 10% of revenue:	5		2
* Less than 10%.