Financial Statement Components (Tables)

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Cash and Cash Equivalents

Cash and cash equivalents consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Cash	$	17,097	$	10,652
Money market funds	65,032		64,971
U.S. Treasury	—		24,999
Commercial paper	47,194		108,322
Total cash and cash equivalents	$	129,323	$	208,944

Schedule of Inventories, net

Inventories consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Raw materials	$	4,858	$	625
Work-in-process	1,672		52
Finished goods	1,341		2,936
Total inventories, net	$	7,871	$	3,613

Schedule of Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Prepaid expenses	$	4,723	$	1,073
Contract assets	11,788		—
Advance payments to vendors	3,443		961
Prepaid rent and other receivables	3,929		2,763
Total prepaid expenses and other current assets	$	23,883	$	4,797

Schedule of Property and Equipment and Property and Equipment Capitalized Under Finance Lease (Capital Lease Prior to Adoption of ASC 842)

Property and equipment consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Machinery and equipment	$	10,265	$	5,940
Computer hardware and software	3,263		2,450
Demonstration fleet and demonstration units	1,709		1,821
Leasehold improvements	990		791
Vehicles	795		835
Furniture and fixtures	571		293
Construction in progress	3,127		1,410
Total property and equipment	20,720		13,540
Accumulated depreciation and amortization	(9,592)		(5,851)
Total property and equipment, net	$	11,128	$	7,689

Property and equipment capitalized under finance lease (capital lease prior to adoption of ASC 842) consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Computer hardware and software	$	88	$	88
Machinery and equipment	838		838
Total property and equipment, gross	926		926
Less: accumulated depreciation	(321)		(219)
Total property and equipment, net	$	605	$	707

Schedule of Other Noncurrent Assets

Other non-current assets consisted of the following (in thousands):

	September 30, 2021		December 31, 2020
Security deposits	$	1,101	$	1,106
Other non-current assets	1,435		45
Total other non-current assets	$	2,536	$	1,151

Schedule of Accrued and Other Current Liabilities

Accrued and other current liabilities consisted of the following (in thousands): 

	September 30, 2021		December 31, 2020
Accrued expenses	$	6,152	$	3,998
Warranty liabilities	1,721		259
Contract liabilities	579		2,284
Accrued compensation and benefits	7,045		3,071
Contract losses	9		558
Finance lease (capital lease prior to adoption of ASC 842) liabilities, current	257		282
Employee tax withholding	2,788		—
Total accrued and other current liabilities	$	18,551	$	10,452

Schedule of Other Non-Current Liabilities

Other non-current liabilities consisted of the following (in thousands): 

	September 30, 2021		December 31, 2020
Deferred rent	$	—	$	826
Finance lease (capital lease prior to adoption of ASC 842) liabilities, non-current	145		331
Other non-current liabilities	766		161
Total other non-current liabilities	$	911	$	1,318