Accrued Expenses

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Accrued Expenses

(5) Accrued Expenses

Accrued expenses consist of the following (in thousands):

	As of December 31,
	2021		2020
Accrued payroll	$	1,520	$	1,325
Accrued expenses		696		577
Warranty reserve		181		181
Other accrued expenses		38		5
Total accrued expenses	$	2,435	$	2,088