Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Warranty Activity

Warranty activity during the three and nine months ended September 30, 2020 and 2019 consisted of the following (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Warranty accrual, beginning of period	$	4,851	$	2,898	$	3,840	$	2,980
Warranties issued	1,137		930		2,992		2,351
Changes in liability for existing warranties	51		169		(88)		72
Settlements	(638)		(639)		(1,343)		(2,045)
Warranty accrual, end of period	$	5,401	$	3,358	$	5,401	$	3,358

Schedule of Annual Minimum Operating Lease Payments

The future annual undiscounted cash flows in relation to the operating leases and a reconciliation of such undiscounted cash flows to the operating lease liabilities recognized in the condensed consolidated balance sheet as of September 30, 2020 are presented below (in thousands):

Remainder of 2020	$	334
2021	1,092
2022	817
2023	1,216
2024	86
Thereafter	153
Total future lease payments	$	3,698
Less: Interest	810
Present value of lease liabilities	$	2,888