Balance Sheet Components

3 Months Ended

Mar. 31, 2022

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

2. Balance Sheet Components

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

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

The Company recorded $0.1 million and $0.1 million of depreciation expense for the three months ended March 31, 2022 and 2021, respectively.

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

Customer Deposits

Customer deposits represent payments received in advance of shipments and fluctuate depending on timing of customer pre-payments and product shipment. Customer deposits were $0.8 million as of March 31, 2022 and December 31, 2021, respectively. The Company generally expects to recognize revenue from customer deposits during the three month period immediately following the balance sheet date. During the three months ended March 31, 2022, the Company recognized $0.8 million of revenue from the December 31, 2021 customer deposits balance.