Revision of Prior Period Financial Statements (Tables)

6 Months Ended

Jun. 30, 2022

Accounting Changes and Error Corrections [Abstract]

Summary of impacts of the error on the consolidated financial statements

The impact of the revisions is as follows (in thousands):

Revised Condensed Consolidated Balance Sheets

	December 31, 2021
	As Previously Reported		Adjustment		As Revised
Assets
Current assets:
Cash and cash equivalents	$	307,492	$	—	$	307,492
Restricted cash	400		—		400
Accounts receivable, net	6,477		—		6,477
Inventory	5,140		(2,250)		2,890
Current portion of contract assets	1,459		—		1,459
Current portion of commission asset	1,645		—		1,645
Prepaid expenses and other current assets	11,047		(290)		10,757
Total current assets	333,660		(2,540)		331,120
Restricted cash, noncurrent	275		—		275
Contract assets, noncurrent	3,418		—		3,418
Commission asset, noncurrent	3,719		—		3,719
Property and equipment, net	21,592		2,191		23,783
Other assets	401		141		542
Total assets	$	363,065	$	(208)	$	362,857
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	6,363	$	(318)	$	6,045
Accrued expenses and other current liabilities	9,183		368		9,551
Current portion of deferred revenue	6,690		(91)		6,599
Current portion of deferred rent	135		—		135
Current portion of long-term debt	2,000		—		2,000
Total current liabilities	24,371		(41)		24,330
Deferred revenue, noncurrent	2,475		—		2,475
Deferred rent, noncurrent	333		—		333
Long-term debt, noncurrent	7,945		—		7,945
Contingent earn-out liability	20,809		397		21,206
Contingently issuable common stock liability	5,264		—		5,264
Public warrant liability	11,030		—		11,030
Total liabilities	72,227		356		72,583
Stockholders’ equity:
Convertible preferred stock	—		—		—
Common stock	14		—		14
Additional paid-in capital	395,563		501		396,064
Accumulated deficit	(104,739)		(1,065)		(105,804)
Stockholders’ equity	290,838		(564)		290,274
Total liabilities and stockholders’ equity	$	363,065	$	(208)	$	362,857

	December 31, 2020
	As Previously Reported		Adjustment		As Revised
Assets
Current assets:
Cash and cash equivalents	$	4,704	$	—	$	4,704
Accounts receivable, net	1,401		—		1,401
Inventory	2,742		(1,156)		1,586
Current portion of commission asset	562		—		562
Prepaid expenses and other current assets	900		641		1,541
Total current assets	10,309		(515)		9,794
Commission asset, noncurrent	1,730		—		1,730
Property and equipment, net	9,316		752		10,068
Other assets	—		173		173
Total assets	$	21,355	$	410	$	21,765
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	4,437	$	—	$	4,437
Accrued expenses and other current liabilities	3,727		484		4,211
Current portion of deferred revenue	3,717		45		3,762
Current portion of deferred rent	11		—		11
Current portion of financing obligations	227		—		227
Total current liabilities	12,119		529		12,648
Deferred revenue, noncurrent	480		—		480
Financing obligation, noncurrent	132		—		132
Long-term debt, noncurrent	16,432		—		16,432
Derivative Liability	1,000		—		1,000
Common stock warrant liability	1		—		1
Total liabilities	30,164		529		30,693
Stockholders’ equity:
Convertible preferred stock	75,877		—		75,877
Common stock	1		—		1
Additional paid-in capital	9,194		916		10,110
Accumulated deficit	(93,881)		(1,035)		(94,916)
Stockholders’ equity	(84,686)		(119)		(84,805)
Total liabilities and stockholders’ equity	$	21,355	$	410	$	21,765

Revised Condensed Consolidated Statements of Operations and Comprehensive Loss

	Three Months Ended March 31, 2022
	As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	5,194	$	—	$	5,194
Subscription revenue	3,020		(16)		3,004
Service revenue	501		11		512
Total revenue	8,715		(5)		8,710
Cost of revenue:
Cost of product revenue	5,576		(370)		5,206
Cost of subscription revenue	1,065		477		1,542
Cost of service revenue	448		617		1,065
Total cost of revenue	7,089		724		7,813
Gross profit	1,626		(729)		897
Operating expenses:
Research and development	4,286		(111)		4,175
Sales and marketing expense	12,053		(2,381)		9,672
General and administrative	11,093		(276)		10,817
Loss from impairment of property and equipment	96		—		96
Total operating expenses	27,528		(2,768)		24,760
Loss from operations	(25,902)		2,039		(23,863)
Other income (expense), net:
Interest expense	(142)		—		(142)
Interest income	209		(141)		68
Change in fair value of contingent earn-out liability	4,226		(1,148)		3,078
Change in fair value of contingently issuable common stock liability	1,472		—		1,472
Change in fair value of public warrant liability	5,586		—		5,586
Total other income (expense), net	11,351		(1,289)		10,062
Net loss	$	(14,551)	$	750	$	(13,801)
Weighted average common shares outstanding - basic and diluted	142,878,406		—		142,878,406
Net loss per share - basic and diluted	$	(0.10)	$	—	$	(0.10)

	Year Ended December 31, 2021
	As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	13,917	$	(286)	$	13,631
Subscription revenue	7,855		(52)		7,803
Service revenue	1,920		39		1,959
Total revenue	23,692		(299)		23,393
Cost of revenue:
Cost of product revenue	12,471		(192)		12,279
Cost of subscription revenue	3,644		857		4,501
Cost of service revenue	936		1,648		2,584
Total cost of revenue	17,051		2,313		19,364
Gross profit	6,641		(2,612)		4,029
Operating expenses:
Research and development	11,416		42		11,458
Sales and marketing expense	27,404		(1,305)		26,099
General and administrative	20,013		(144)		19,869
Loss from impairment of property and equipment	1,869		—		1,869
Total operating expenses	60,702		(1,407)		59,295
Loss from operations	(54,061)		(1,205)		(55,266)
Other income (expense), net:
Interest expense, net	(6,095)		27		(6,068)
Interest income	—		—		—
Loss on disposal of property and equipment	(617)		—		(617)
Loss on extinguishment of debt	(12,685)		—		(12,685)
Change in fair value of derivative liability	(1,745)		—		(1,745)
Change in fair value of contingent earn-out liability	46,212		1,148		47,360
Change in fair value of contingently issuable common stock liability	6,406		—		6,406
Change in fair value of public warrant liability	12,606		—		12,606
Change in fair value of common stock warrant liability	(879)		—		(879)
Total other income (expense), net	43,203		1,175		44,378
Net loss	$	(10,858)	$	(30)	$	(10,888)
Weighted average common shares outstanding - basic and diluted	71,662,694		—		71,662,694
Net loss per share - basic and diluted	$	(0.15)	$	—	$	(0.15)

	Three Months Ended September 30, 2021						Nine Months Ended September 30, 2021
	As Previously Reported		Adjustment		As Revised		As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	5,345	$	50	$	5,395	$	10,299	$	(20)	$	10,279
Subscription revenue	2,305		7		2,312		5,118		(58)		5,060
Service revenue	717		—		717		1,429		27		1,456
Total revenue	8,367		57		8,424		16,846		(51)		16,795
Cost of revenue:
Cost of product revenue	2,933		34		2,967		7,237		149		7,386
Cost of subscription revenue	1,086		191		1,277		2,542		538		3,080
Cost of service revenue	192		521		713		732		953		1,685
Total cost of revenue	4,211		746		4,957		10,511		1,640		12,151
Gross profit	4,156		(689)		3,467		6,335		(1,691)		4,644
Operating expenses:
Research and development	3,641		(29)		3,612		8,330		69		8,399
Sales and marketing expense	8,510		1,514		10,024		17,284		472		17,756
General and administrative	6,983		552		7,535		11,162		896		12,058
Loss from impairment of property and equipment	1,656		—		1,656		1,656		—		1,656
Total operating expenses	20,790		2,037		22,827		38,432		1,437		39,869
Loss from operations	(16,634)		(2,726)		(19,360)		(32,097)		(3,128)		(35,225)
Other income (expense), net:
Interest expense, net	(286)		(9)		(295)		(5,988)		36		(5,952)
Other expense, net	(669)		—		(669)		(669)		—		(669)
Loss on extinguishment of debt	(865)		—		(865)		(12,685)		—		(12,685)
Change in fair value of derivative liability	475		—		475		(1,745)		—		(1,745)
Change in fair value of contingent earn-out liability	31,818		791		32,609		31,818		791		32,609
Change in fair value of contingently issuable common stock liability	5,718		—		5,718		5,718		—		5,718
Change in fair value of public warrant liability	3,152		—		3,152		3,152		—		3,152
Change in fair value of common stock warrant liability	42		—		42		(879)		—		(879)
Total other income (expense), net	39,385		782		40,167		18,722		827		19,549
Net income (loss) attributable to common stockholders - basic	$	22,751	$	(1,944)	$	20,807	$	(13,375)	$	(2,301)	$	(15,676)
Net income (loss) attributable to common stockholders - diluted	$	23,222	$	(1,944)	$	21,278	$	(13,375)	$	(2,301)	$	(15,676)
Weighted average common shares outstanding
Basic	119,745,196		—		119,745,196		47,772,253		—		47,772,253
Diluted	153,867,300		69,136		153,936,436		47,772,253		—		47,772,253
Net income (loss) per share
Basic	$	0.19	$	(0.02)	$	0.17	$	(0.28)	$	(0.05)	$	(0.33)
Diluted	$	0.15	$	(0.01)	$	0.14	$	(0.28)	$	(0.05)	$	(0.33)

	Three Months Ended June 30, 2021						Six Months Ended June 30, 2021
	As Previously Reported		Adjustment		As Revised		As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	2,452	$	165	$	2,617	$	4,954	$	(70)	$	4,884
Subscription revenue	1,513		8		1,521		2,813		(65)		2,748
Service revenue	515		25		540		712		27		739
Total revenue	4,480		198		4,678		8,479		(108)		8,371
Cost of revenue:
Cost of product revenue	2,075		128		2,203		4,304		115		4,419
Cost of subscription revenue	861		199		1,060		1,456		347		1,803
Cost of service revenue	413		274		687		540		432		972
Total cost of revenue	3,349		601		3,950		6,300		894		7,194
Gross profit	1,131		(403)		728		2,179		(1,002)		1,177
Operating expenses:
Research and development	1,077		(30)		1,047		4,689		98		4,787
Sales and marketing expense	5,090		34		5,124		8,774		(1,042)		7,732
General and administrative	1,280		191		1,471		4,179		344		4,523
Total operating expenses	7,447		195		7,642		17,642		(600)		17,042
Loss from operations	(6,316)		(598)		(6,914)		(15,463)		(402)		(15,865)
Other income (expense), net:
Interest expense, net	(3,255)		(8)		(3,263)		(5,702)		45		(5,657)
Interest income	—		—		—		—		—		—
Loss on extinguishment of debt	(11,820)		—		(11,820)		(11,820)		—		(11,820)
Change in fair value of derivative liability	(795)		—		(795)		(2,220)		—		(2,220)
Change in fair value of common stock warrant liability	(185)		—		(185)		(921)		—		(921)
Total other income (expense), net	(16,055)		(8)		(16,063)		(20,663)		45		(20,618)
Net loss	$	(22,371)	$	(606)	$	(22,977)	$	(36,126)	$	(357)	$	(36,483)
Weighted average common shares outstanding - basic and diluted	11,922,270		—		11,922,270		11,186,204		—		11,186,204
Net loss per share - basic and diluted	$	(1.88)	$	(0.05)	$	(1.93)	$	(3.23)	$	(0.03)	$	(3.26)

	Three Months Ended March 31, 2021
	As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	2,502	$	(235)	$	2,267
Subscription revenue	1,300		(73)		1,227
Service revenue	197		2		199
Total revenue	3,999		(306)		3,693
Cost of revenue:
Cost of product revenue	2,229		(13)		2,216
Cost of subscription revenue	595		148		743
Cost of service revenue	127		158		285
Total cost of revenue	2,951		293		3,244
Gross profit	1,048		(599)		449
Operating expenses:
Research and development	3,612		128		3,740
Sales and marketing expense	3,684		(1,076)		2,608
General and administrative	2,899		153		3,052
Total operating expenses	10,195		(795)		9,400
Loss from operations	(9,147)		196		(8,951)
Other income (expense), net:
Interest expense, net	(2,447)		53		(2,394)
Change in fair value of derivative liability	(1,425)		—		(1,425)
Change in fair value of common stock warrant liability	(736)		—		(736)
Total other income (expense), net	(4,608)		53		(4,555)
Net loss	$	(13,755)	$	249	$	(13,506)
Weighted average common shares outstanding - basic and diluted	10,443,323		—		10,443,323
Net loss per share - basic and diluted	$	(1.32)	$	0.03	$	(1.29)

	Year Ended December 31, 2020
	As Previously Reported		Adjustment		As Revised
Revenue:
Product revenue	$	1,279	$	503	$	1,782
Subscription revenue	2,637		93		2,730
Service revenue	869		—		869
Total revenue	4,785		596		5,381
Cost of revenue:
Cost of product revenue	1,177		562		1,739
Cost of subscription revenue	1,824		—		1,824
Cost of service revenue	495		1		496
Total cost of revenue	3,496		563		4,059
Gross profit	1,289		33		1,322
Operating expenses:
Research and development	15,710		(157)		15,553
Sales and marketing expense	7,365		919		8,284
General and administrative	5,110		420		5,530
Total operating expenses	28,185		1,182		29,367
Loss from operations	(26,896)		(1,149)		(28,045)
Other income (expense), net:
Interest expense, net	(430)		114		(316)
Loss on extinguishment of debt	(66)		—		(66)
Total other income (expense), net	(496)		114		(382)
Net loss	$	(27,392)	$	(1,035)	$	(28,427)
Weighted average common shares outstanding - basic and diluted	8,932,404		—		8,932,404
Net loss per share - basic and diluted	$	(3.07)	$	(0.11)	$	(3.18)

Revised Condensed Consolidated Statements of Cash Flows

	Three Months Ended March 31, 2022
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(14,551)	$	750	$	(13,801)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	948		138		1,086
Write-off of inventory	324		—		324
Adjustment to property and equipment for sales type leases	(321)		(304)		(625)
Loss from impairment of property and equipment	96		—		96
Stock-based compensation	5,190		(1,263)		3,927
Noncash interest expense	5		—		5
Noncash lease expense	197		—		197
Change in fair value of earn-out liability	(4,226)		1,148		(3,078)
Change in fair value of contingently issuable common stock	(1,472)		—		(1,472)
Change in fair value of public warrant liability	(5,586)		—		(5,586)
Changes in operating assets and liabilities
Accounts receivable	(2,112)		—		(2,112)
Inventory	(6,985)		5,675		(1,310)
Commission assets	(351)		—		(351)
Contract assets	108		—		108
Other assets	—		141		141
Prepaid expenses and other current assets	(5,280)		(291)		(5,571)
Accounts payable	(1,867)		1,012		(855)
Deferred revenue	2,778		(201)		2,577
Deferred rent	(468)		468		—
Accrued expenses and other current liabilities	(2,065)		(368)		(2,433)
Operating lease liability	(229)		(468)		(697)
Net cash used in operating activities	(35,867)		6,437		(29,430)
Cash flows from investing activities:
Development of internal-use software	(646)		(82)		(728)
Purchases of property and equipment	(323)		(6,366)		(6,689)
Net cash used in investing activities	(969)		(6,448)		(7,417)
Cash flows from financing activities:
Proceeds from exercise of stock options	216		11		227
Net cash provided by financing activities	216		11		227
Net increase (decrease) in cash, cash equivalents and restricted cash	(36,620)		—		(36,620)
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	308,167		—		308,167
Cash, cash equivalents and restricted cash at end of period	$	271,547	$	—	$	271,547
Supplemental disclosure of non-cash activities
Transfer of inventory to property and equipment	$	4,620	$	(4,620)	$	—
Capital expenditures incurred but not yet paid	1,693		698		2,391

	Year Ended December 31, 2021
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(10,858)	$	(30)	$	(10,888)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,895		—		2,895
Write-off of inventory	2,132		—		2,132
Adjustment to property and equipment for sales type leases	(91)		—		(91)
Loss from impairment of property and equipment	1,869		—		1,869
Loss on disposal of property and equipment	617		—		617
Stock-based compensation	8,511		1,085		9,596
Noncash interest expense	5,245		—		5,245
Provision recorded for allowance for doubtful accounts	(13)		—		(13)
Loss on extinguishment of debt	12,685		—		12,685
Change in fair value of derivative liability	1,745		—		1,745
Change in fair value of common stock warrant liability	879		—		879
Change in fair value of earn-out liability	(46,212)		(1,148)		(47,360)
Change in fair value of contingently issuable common stock	(6,406)		—		(6,406)
Change in fair value of public warrant liability	(12,606)		—		(12,606)
Changes in operating assets and liabilities
Accounts receivable	(5,063)		—		(5,063)
Inventory	(17,479)		14,043		(3,436)
Commission assets	(3,072)		—		(3,072)
Contract assets	(4,877)		—		(4,877)
Other assets	—		32		32
Prepaid expenses and other current assets	(10,079)		931		(9,148)
Accounts payable	(7)		772		765
Deferred revenue	4,968		(136)		4,832
Deferred rent	457		—		457
Warranty reserve	(42)		—		(42)
Accrued expenses and other current liabilities	5,174		(2,702)		2,472
Net cash used in operating activities	(69,628)		12,847		(56,781)
Cash flows from investing activities:
Development of internal-use software	(1,028)		—		(1,028)
Purchases of property and equipment	(3,710)		(12,847)		(16,557)
Net cash used in investing activities	(4,738)		(12,847)		(17,585)
Cash flows from financing activities:
Proceeds from exercise of stock options	915		—		915
Proceeds from issuance of common stock from the PIPE Investment	300,000		—		300,000
Proceeds from the closing of the Merger	84,945		—		84,945
Payment of offering costs from the closing of the Merger and PIPE Investment	(34,132)		—		(34,132)
Repayment of financing obligations	(359)		—		(359)
Proceeds from long-term debt, net of issuance costs	31,882		—		31,882
Repayment of principal on long-term debt	(5,422)		—		(5,422)
Net cash provided by financing activities	377,829		—		377,829
Net increase (decrease) in cash, cash equivalents and restricted cash	303,463		—		303,463
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	4,704		—		4,704
Cash, cash equivalents and restricted cash at end of period	$	308,167	$	—	$	308,167
Supplemental disclosure of non-cash activities
Transfer of inventory to property and equipment	$	12,949	$	(12,949)	$	—
Capital expenditures incurred but not yet paid	347		2,589		2,936
Issuance of equity classified warrants	1		(1)		—

Deferred offering costs included in accounts payable	1,932	11	1,943
Conversion of convertible preferred stock to common stock	75,877	—	75,877
Initial fair value of contingent earn-out liability recognized in connection with the closing of the Merger	67,021	—	67,021
Initial fair value of contingently issuable common stock liability recognized in connection with the closing of the Merger	11,670	—	11,670
Conversion of common stock warrants to common stock in connection with the closing of the Merger	880	—	880
Initial fair value of public warrants in connection with the closing of the Merger	23,636	—	23,636

	Nine Months Ended September 30, 2021
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(13,375)	$	(2,301)	$	(15,676)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,948		—		1,948
Write-off of inventory	400		—		400
Loss from impairment of property and equipment	1,656		—		1,656
Loss on disposal of property and equipment	659		—		659
Stock-based compensation	4,013		2,019		6,032
Noncash interest expense	5,561		—		5,561
Provision recorded for allowance for doubtful accounts	(63)		—		(63)
Loss on extinguishment of debt	12,685		—		12,685
Change in fair value of derivative liability	1,745		—		1,745
Change in fair value of common stock warrant liability	879		—		879
Change in fair value of earn-out liability	(31,818)		(791)		(32,609)
Change in fair value of contingently issuable common stock	(5,718)		—		(5,718)
Change in fair value of public warrant liability	(3,152)		—		(3,152)
Changes in operating assets and liabilities
Accounts receivable	(5,866)		—		(5,866)
Inventory	(10,836)		10,100		(736)
Commission assets	(1,102)		—		(1,102)
Contract assets	(2,582)		(895)		(3,477)
Other assets	—		23		23
Prepaid expenses and other current assets	(12,772)		1,237		(11,535)
Accounts payable	2,264		(2,024)		240
Deferred revenue	2,459		(107)		2,352
Deferred rent	397		—		397
Warranty reserve	(42)		—		(42)
Accrued expenses and other current liabilities	2,183		651		2,834
Net cash used in operating activities	(50,477)		7,912		(42,565)
Cash flows from investing activities:
Purchases of property and equipment	(3,082)		(7,912)		(10,994)
Net cash used in investing activities	(3,082)		(7,912)		(10,994)
Cash flows from financing activities:
Proceeds from exercise of stock options	777		—		777
Proceeds from issuance of common stock from the PIPE Investment	300,000		—		300,000
Proceeds from the closing of the Merger	84,945		—		84,945
Payment of offering costs from the closing of the Merger and PIPE Investment	(33,968)		—		(33,968)
Repayment of financing obligations	(359)		—		(359)
Proceeds from long-term debt, net of issuance costs	31,882		—		31,882
Net cash provided by financing activities	383,277		—		383,277
Net increase (decrease) in cash, cash equivalents and restricted cash	329,718		—		329,718
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	4,704		—		4,704
Cash, cash equivalents and restricted cash at end of period	$	334,422	$	—	$	334,422
Supplemental disclosure of non-cash activities
Transfer of inventory to property and equipment	$	9,648	$	(9,648)	$	—
Capital expenditures incurred but not yet paid	—		3,123		3,123
Deferred offering costs included in accounts payable	1,760		10		1,770
Conversion of convertible preferred stock to common stock	75,877		—		75,877
Initial fair value of contingent earn-out liability recognized in connection with the closing of the Merger	66,845		176		67,021

Initial fair value of contingently issuable common stock liability recognized in connection with the closing of the Merger	11,670	—	11,670
Conversion of common stock warrants to common stock in connection with the closing of the Merger	880	—	880
Initial fair value of public warrants in connection with the closing of the Merger	23,636	—	23,636

	Six Months Ended June 30, 2021
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(36,126)	$	(357)	$	(36,483)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,102		—		1,102
Stock-based compensation	1,617		(241)		1,376
Noncash interest expense	5,455		—		5,455
Provision recorded for allowance for doubtful accounts	(63)		—		(63)
Loss on extinguishment of debt	11,820		—		11,820
Change in fair value of derivative liability	2,220		—		2,220
Change in fair value of common stock warrant liability	921		—		921
Changes in operating assets and liabilities
Accounts receivable	(1,335)		—		(1,335)
Inventory	(1,173)		720		(453)
Commission assets	(742)		—		(742)
Contract assets	(239)		—		(239)
Other assets	—		13		13
Prepaid expenses and other current assets	(7,495)		208		(7,287)
Accounts payable	5,361		(1,862)		3,499
Deferred revenue	253		(100)		153
Deferred rent	152		—		152
Warranty reserve	(42)		—		(42)
Accrued expenses and other current liabilities	1,360		281		1,641
Net cash used in operating activities	(16,954)		(1,338)		(18,292)
Cash flows from investing activities:
Purchases of property and equipment	(9,292)		1,338		(7,954)
Net cash used in investing activities	(9,292)		1,338		(7,954)
Cash flows from financing activities:
Proceeds from exercise of stock options	657		—		657
Repayment of financing obligations	(359)		—		(359)
Proceeds from long-term debt, net of issuance costs	31,882		—		31,882
Net cash provided by financing activities	32,180		—		32,180
Net increase (decrease) in cash, cash equivalents and restricted cash	5,934		—		5,934
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	4,704		—		4,704
Cash, cash equivalents and restricted cash at end of period	$	10,638	$	—	$	10,638
Supplemental disclosure of non-cash activities
Transfer of inventory to property and equipment	$	46	$	—	$	46
Capital expenditures incurred but not yet paid	—		2,962		2,962
Capitalization of stock compensation	—		27		27

	Three Months Ended March 31, 2021
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(13,755)	$	249	$	(13,506)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	452		—		452
Stock-based compensation	1,082		(773)		309
Noncash interest expense	2,344		—		2,344
Provision recorded for allowance for doubtful accounts	(63)		—		(63)
Change in fair value of derivative liability	1,425		—		1,425
Change in fair value of common stock warrant liability	736		—		736
Changes in operating assets and liabilities
Accounts receivable	(874)		—		(874)
Inventory	(433)		(47)		(480)
Commission assets	(391)		—		(391)
Contract assets	(119)		—		(119)
Other assets	—		7		7
Prepaid expenses and other current assets	(4,104)		377		(3,727)
Accounts payable	1,194		(235)		959
Deferred revenue	(621)		(185)		(806)
Deferred rent	(11)		—		(11)
Accrued expenses and other current liabilities	1,100		206		1,306
Net cash used in operating activities	(12,038)		(401)		(12,439)
Cash flows from investing activities:
Purchases of property and equipment	(2,522)		401		(2,121)
Net cash used in investing activities	(2,522)		401		(2,121)
Cash flows from financing activities:
Proceeds from exercise of stock options	455		—		455
Repayment of financing obligations	(359)		—		(359)
Proceeds from long-term debt, net of issuance costs	31,882		—		31,882
Net cash provided by financing activities	31,978		—		31,978
Net increase (decrease) in cash, cash equivalents and restricted cash	17,418		—		17,418
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	4,704		—		4,704
Cash, cash equivalents and restricted cash at end of period	$	22,122	$	—	$	22,122
Supplemental disclosure of non-cash activities
Capital expenditures incurred but not yet paid	—		1,335		1,335
Issuance of equity classified warrants	1		—		1

	Year Ended December 31, 2020
	As Previously Reported		Adjustment		As Revised
Cash flows from operating activities:
Net loss	$	(27,392)	$	(1,035)	$	(28,427)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,065		—		1,065
Stock-based compensation	662		917		1,579
Noncash interest expense	25		—		25
Provision recorded for allowance for doubtful accounts	47		—		47
Loss on extinguishment of debt	66		—		66
Changes in operating assets and liabilities
Accounts receivable	(464)		—		(464)
Inventory	(1,471)		1,156		(315)
Commission assets	(1,785)		—		(1,785)
Other assets	—		(173)		(173)
Prepaid expenses and other current assets	(375)		(641)		(1,016)
Accounts payable	1,915		(1,100)		815
Deferred revenue	2,341		45		2,386
Deferred rent	(34)		—		(34)
Warranty reserve	(14)		—		(14)
Accrued expenses and other current liabilities	2,160		483		2,643
Operating lease liability	—		—		—
Net cash used in operating activities	(23,254)		(348)		(23,602)
Cash flows from investing activities:
Purchases of property and equipment	(6,609)		348		(6,261)
Net cash used in investing activities	(6,609)		348		(6,261)
Cash flows from financing activities:
Proceeds from issuance of Series B-1 convertible preferred stock, net of issuance costs	2,994		—		2,994
Proceeds from exercise of stock options	442		—		442
Repayment of financing obligations	(244)		—		(244)
Proceeds from long-term debt, net of issuance costs	22,438		—		22,438
Repayment of principal on long-term debt	(8,404)		—		(8,404)
Net cash provided by financing activities	17,226		—		17,226
Net increase (decrease) in cash, cash equivalents and restricted cash	(12,637)		—		(12,637)
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period	17,341		—		17,341
Cash, cash equivalents and restricted cash at end of period	$	4,704	$	—	$	4,704
Supplemental disclosure of non-cash activities
Transfer of inventory to property and equipment	$	86	$	—	$	86
Capital expenditures incurred but not yet paid	—		1,100		1,100
Issuance of equity classified warrants	112		—		112
Issuance of a nonrecourse promissory note with officer	350		—		350