Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2022

Commitments And Contingencies Disclosure [Abstract]

Summary of Restructuring Activity and Status of Reserves

The following table summarizes the restructuring activity and the status of the reserves during the nine months ended September 30, 2022:

	Tianjin
	Manufacturing			Beijing			Total
Balance at December 31, 2021	$	0		$	368		$	368
Restructuring expense		1,309			0			1,309
Payments made		(1,309	)		(368	)		(1,677	)
Balance at September 30, 2022	$	0		$	0		$	0

Summary of Warranty Activity

The following table summarizes the warranty activity during the nine months ended September 30, 2022 and 2021:

	Nine Months Ended September 30,
	2022			2021
Beginning balance	$	257		$	285
Provisions for warranties		162			64
Consumption of reserves		(110	)		(77	)
Ending balance	$	309		$	272