Balance Sheet Details (Tables)

3 Months Ended

Mar. 31, 2022

Balance Sheet Component [Abstract]

Schedule of Fixed Assets and Accrued Liabilities

The following provides certain balance sheet details:

	December 31,			March 31,
	2021			2022
				(unaudited)
Inventories
Raw materials	$	2,303		$	2,735
Subassemblies		294			414
Finished goods		54			72
	$	2,651		$	3,221
Fixed Assets
Machinery and equipment	$	3,063		$	3,079
Furniture and office equipment		161			161
Computer equipment and software		2,931			2,931
Leasehold improvements		634			634
Construction in process		245			387
	$	7,034		$	7,192
Less: accumulated depreciation and amortization		(4,633	)		(4,812	)
Total fixed assets, net	$	2,401		$	2,380
Accrued Liabilities
Accrued payroll		725			992
Accrued vacation		961			818
Accrued bonuses		178			493
Accrued sales commissions		600			1,813
Accrued other		554			434
Total accrued liabilities	$	3,018		$	4,550