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Segment Information (Tables)

9 Months Ended

Sep. 30, 2021

Concentration risk

Revenue from external customer by geographic regions

Revenue from customers in the geographic regions based on the location of contracting parties was as follows:

						Three Months Ended												Nine Months Ended
						September 30,												September 30,
(In thousands)						2021						2020						2021						2020 (As Restated)
USA						$	55,337					$	29,068					$	147,029					$	95,870
Taiwan						4,170						8,234						22,031						19,050
South Korea						1,350						719						3,947						3,240
Japan						3,095						4,175						11,509						16,749
Europe						661						728						2,294						6,410
Canada						19						534						111						1,077
Singapore						8,214						6,754						28,882						23,186
Asia-Other						8,436						6,703						20,720						18,827
Total						$	81,282					$	56,915					$	236,523					$	184,409

Accounts receivable

Concentration risk

Schedule of customer accounts representing 10% or more than 10% of total

Accounts receivable from the Company’s major customers representing 10% or more of total accounts receivable at September 30, 2021 and December 31, 2020, respectively, was as follows:

						As of
Customer						September 30, 2021						December 31, 2020
Customer 1						18		%				*
Customer 2						14		%				*
Customer 3						10		%				13		%
Customer 4						*						14		%
Customer 5						*						11		%

_________________________________________

*    Customer accounted for less than 10% of total accounts receivable in the period.

Revenue

Concentration risk

Schedule of customer accounts representing 10% or more than 10% of total

Revenue from the Company’s major customers representing 10% or more of total revenue for the three and nine months ended September 30, 2021 and 2020, respectively, was as follows:

						Three Months Ended												Nine Months Ended
						September 30,												September 30,
Customer						2021						2020						2021						2020 (As Restated)
Customer A						23		%				12		%				21		%				13		%
Customer B						15		%				*						10		%				*
Customer C						11		%				18		%				11		%				16		%

_________________________________________

*    Customer accounted for less than 10% of total revenue in the period.

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