Accrued Expenses

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Payables and Accruals [Abstract]

Accrued Expenses

Note 7. Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Accrued legal expenses	$	1,393	$	957
Compensation and related benefits		496		2,479
Accrued warranty (Note 8)		195		204
Other accrued expenses		548		507
Total accrued expenses	$	2,632	$	4,147

Note 7—Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	December 31,
	2020		2019
Compensation and related benefits	$	2,479	$	985
Accrued warranty (Note 8)		204		234
Accrued services		1,464		1,141
Accrued expenses	$	4,147	$	2,360