Leases

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Leases

(6) Leases

Components of lease expense were as follows:

		Year Ended December 31,
Lease Cost	Classification	2021			2020		2019
Operating lease cost	Operating expenses	$	1,644		$	1,698	$	1,550
Operating lease cost	Inventory		276			488		4,206
Sublease income	Operating expenses		(520	)		—		—
Total operating lease cost		$	1,400		$	2,186	$	5,756
Finance lease cost
Amortization of right-of-use assets	Operating expenses		35			41		41
Amortization of right-of-use assets	Inventory		19			36		—
Interest on lease liabilities	Other income (expense), net		8			10		4
Total finance lease cost		$	62		$	87	$	45
Variable lease cost	Inventory		—			—		10,568
Total lease cost		$	1,462		$	2,273	$	16,369

Short-term lease expense for the years ended December 31, 2021, 2020, and 2019 were immaterial.

Supplemental cash flow information related to operating and finance leases was as follows (in thousands):

	Year Ended December 31,
	2021		2020		2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	1,716	$	1,758	$	5,419
Operating cash outflows from finance leases		69		85		44
Finance cash flows from finance leases	$	—	$	—	$	—
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	965	$	1,242	$	8,667
Finance leases		—		157		117

Supplemental balance sheet information related to operating and finance leases was as follows (in thousands, except lease term and discount rate):

	December 31,			December 31,
	2021			2020
Reported as:
Other assets
Operating lease right-of-use assets	$	6,488		$	7,176
Finance lease right-of-use assets		77			158
Total right-of use assets	$	6,565		$	7,334
Accrued and other current liabilities
Operating lease liabilities	$	1,595		$	1,504
Finance lease liabilities		71			84
Warranty reserve and other long-term liabilities
Operating lease liabilities		5,576			5,946
Finance lease liabilities		28			77
Total lease liabilities	$	7,270		$	7,611
Weighted average remaining lease term (years)
Operating leases		4			5
Finance leases		2			2
Weighted average discount rate
Operating leases		8.16	%		7.75	%
Finance leases		6.90	%		6.15	%

As of December 31, 2021, maturities of the Company’s operating and finance lease liabilities are as follows (in thousands):

Period	Operating leases		Finance leases		Total
2022	$	2,184	$	63	$	2,247
2023		2,269		38		2,307
2024		1,818		3		1,821
2025		898		—		898
2026		852		—		852
2027		586		—		586
Total lease payments	$	8,607	$	104	$	8,711
Less imputed interest		1,436		5		1,441
Total lease liabilities	$	7,171	$	99	$	7,270