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Segment Information (Tables)

6 Months Ended

Jun. 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												Six Months Ended
						June 30,												June 30,
(In thousands)						2021						2020 (As Restated)						2021						2020 (As Restated)
USA						$	45,541					$	32,014					$	91,692					$	66,802
Taiwan						9,018						3,752						17,861						10,816
South Korea						2,209						701						2,597						2,521
Japan						3,826						7,943						8,414						12,574
Europe						1,187						4,944						1,633						5,682
Canada						38						31						92						543
Singapore						14,330						8,802						20,668						16,432
Asia-Other						8,710						3,530						12,284						12,124
Total						$	84,859					$	61,717					$	155,241					$	127,494

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 June 30, 2021 and December 31, 2020, respectively, was as follows:

						As of
Customer						June 30, 2021						December 31, 2020
Customer 1						13		%				13		%
Customer 2						11		%				*
Customer 3						10		%				14		%
Customer 4						*						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 six months ended June 30, 2021 and 2020, respectively, was as follows:

						Three Months Ended												Six Months Ended
						June 30,												June 30,
Customer						2021						2020 (As Restated)						2021						2020 (As Restated)
Customer A						16		%				15		%				19		%				13		%
Customer B						*						18		%				11		%				16		%
Customer C						13		%				*						*						*

_________________________________________

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

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