Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2021

Payables And Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses consisted of the following (in thousands):

	December 31,
	2021		2020
Compensation and related benefits	$	2,004	$	2,479
Accrued legal expenses		1,345		957
Accrued warranty (Note 8)		195		204
Other accrued expenses		575		507
Accrued expenses	$	4,119	$	4,147