Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Commitments And Contingencies Disclosure [Abstract]

Summary of Restructuring Activity

The following table summarizes the restructuring activity during the six months ended June 30, 2021 and the status of the reserves at June 30, 2021:

			Lease
	Severance		Termination			Total
Balance at December 31, 2020	$	0	$	15		$	15
Restructuring expense		60		0			60
Payments made		0		(15	)		(15	)
Balance at June 30, 2021	$	60	$	0		$	60

Summary of Warranty Activity

The following table summarizes the warranty activity during the six months ended June 30, 2021 and 2020:

	Six Months Ended June 30,
	2021			2020
Beginning balance	$	285		$	444
Provisions for warranties		57			3
Consumption of reserves		(58	)		(179	)
Ending balance	$	284		$	268