Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2022

Balance Sheet Components [Abstract]

Schedule of Cash and Cash Equivalents

Cash and cash equivalents

The Company’s cash and cash equivalents consist of the following (in thousands):

	March 31,		December 31,
		2022		2021
Cash	$	1,623	$	2,086
Cash equivalents:
Money market funds		26,281		38,522
Total cash and cash equivalents	$	27,904	$	40,608

Schedule of Inventory

Inventory consists of the following (in thousands):

	March 31,		December 31,
		2022		2021
Finished goods	$	9,194	$	9,495
Component materials		6,810		6,187
Total inventory	$	16,004	$	15,682

Prepaid Expenses and Other Current Assets

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

	March 31,		December 31,
		2022		2021
Prepaid expenses	$	1,238	$	1,264
Prepaid insurance		1,804		2,726
Other current assets		100		149
Total prepaid expenses and other current assets	$	3,142	$	4,139

Property and Equipment, Net

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

		March 31,		December 31,
	Useful life (years)		2022		2021
Computers and software	2	$	730	$	730
Machinery and equipment	3		841		997
Furniture and fixtures	7		48		48
Tools and dies	2		949		941
Construction in progress	—		456		428
Equipment under customer usage agreements	3		11,365		10,612
Leasehold improvements	Lesser of useful life or lease term		155		155
			14,544		13,911
Less: accumulated depreciation and amortization			(9,727)		(9,317)
Property and equipment, net		$	4,817	$	4,594

Schedule of Intangible Assets, Net

Intangible asset, net consist of the following (in thousands):

	March 31, 2022
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Trademarks	$	3,969	$	(1,145)	$	2,824
Developed technology		30,819		(5,779)		25,040
Customer relationships		13,466		(8,416)		5,050
Other intangible assets		24		—		24
Total intangible assets	$	48,278	$	(15,340)	$	32,938

	December 31, 2021
	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
Trademarks	$	3,969	$	(992)	$	2,977
Developed technology		30,819		(5,008)		25,811
Customer relationships		13,466		(7,294)		6,172
Other intangible assets		10		—		10
Total intangible assets	$	48,264	$	(13,294)	$	34,970

Schedule of Future Amortization Expense of Intangible Assets

Future amortization expense of intangible assets as of March 31, 2022 is as follows (in thousands):

As of March 31,
2022 (remaining nine months)	$	6,136
2023		5,376
2024		3,693
2025		3,693
Thereafter		14,040
Total	$	32,938

Schedule of Accrued Compensation

Accrued compensation consists of the following (in thousands):

	March 31,		December 31,
		2022		2021
Accrued vacation	$	1,520	$	1,469
Accrued bonuses		639		1,307
Accrued commissions		596		665
Other accrued personnel related expenses		132		77
Total accrued compensation	$	2,887	$	3,518

Schedule of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31,		December 31,
		2022		2021
Accrual for litigation	$	7,203	$	7,203
Accrued professional fees		563		974
Accrued sales and use taxes		633		657
Deferred rent		—		277
Accrual for inventory in transit		1,079		119
Contract liability		281		206
Accrued interest expense		193		189
Others		796		1,037
Total accrued liabilities	$	10,748	$	10,662