Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Components of Inventory

Inventory consists of the following (in thousands):

	March 31,		December 31,
	2022		2021
Work in process	$	7,726	$	6,038
Finished goods		7,454		7,484
Total inventory	$	15,180	$	13,522

Components of Property and Equipment - Net

Property and equipment, net consists of the following (in thousands):

	March 31,			December 31,
	2022			2021
Computer equipment and software	$	2,336		$	2,224
Leasehold improvements		94			84
Furniture		36			36
Total property and equipment		2,466			2,344
Less: accumulated depreciation		(1,731	)		(1,631	)
Total property and equipment – net	$	735		$	713

Components of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31,		December 31,
	2022		2021
Payroll-related expenses	$	1,308	$	803
Taxes payable		662		117
Engineering services		600		681
Accrued inventory		352		70
Accrued warranty		121		145
Professional fees		97		62
Other		31		18
Total accrued liabilities	$	3,171	$	1,896