0001628280-22-021350 | 10-Q | XBRL Viewer

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Cover page - shares	6 Months Ended
Cover page - shares	Jun. 30, 2022	Jul. 31, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-40797
Entity Registrant Name	PROCEPT BioRobotics Corporation
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-0199180
Entity Address, Address Line One	900 Island Drive
Entity Address, City or Town	Redwood City
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94065
City Area Code	650
Local Phone Number	232-7200
Title of 12(b) Security	Common stock, $0.00001 par value per share
Trading Symbol	PRCT
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in share)		44,592,286
Entity Central Index Key	0001588978
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Amendment Flag	false
Document Fiscal Period Focus	Q2

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 269,806	$ 304,320
Accounts receivable, net	10,894	4,464
Inventory	13,777	13,147
Prepaid expenses and other current assets	3,860	4,242
Total current assets	298,337	326,173
Restricted cash	3,814	777
Property and equipment, net	4,397	5,045
Operating lease right-of-use assets, net	2,463	3,279
Intangible assets, net	1,614	1,750
Other assets	302	0
Total assets	310,927	337,024
Current liabilities:
Accounts payable	3,342	2,029
Accrued compensation	6,906	6,475
Deferred revenue	1,863	1,025
Operating lease – current portion	2,258	2,105
Other current liabilities	4,264	4,608
Total current liabilities	18,633	16,242
Note payable – non-current portion	50,507	50,004
Operating lease – non-current portion	829	1,991
Loan facility derivative liability	1,570	1,496
Other non-current liabilities	200	200
Total liabilities	71,739	69,933
Commitments and contingencies
Stockholders’ equity:
Preferred stock	0	0
Common stock	0	0
Additional paid-in capital	537,046	528,666
Accumulated other comprehensive loss	32	(54)
Accumulated deficit	(297,890)	(261,521)
Total stockholders’ equity	239,188	267,091
Total liabilities and stockholders’ equity	$ 310,927	$ 337,024

Condensed Consolidated Balance Sheets - Parentheticals - $ / shares	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Preferred Stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred Stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred Stock, shares issued (in shares)	0	0
Preferred Stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	44,538,000	43,676,000
Common stock, shares, outstanding (in shares)	44,538,000	43,676,000

Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 16,691	$ 8,476	$ 30,888	$ 15,668
Cost of sales	8,205	4,893	14,710	8,558
Gross profit	8,486	3,583	16,178	7,110
Operating expenses:
Research and development	6,706	4,476	11,717	8,998
Selling, general and administrative	19,655	12,299	38,040	22,648
Total operating expenses	26,361	16,775	49,757	31,646
Loss from operations	(17,875)	(13,192)	(33,579)	(24,536)
Interest expense	(1,441)	(1,436)	(2,862)	(2,900)
Interest and other income, net	132	48	72	34
Net loss	$ (19,184)	$ (14,580)	$ (36,369)	$ (27,402)
Net loss per share, basic (in dollars per share)	$ (0.43)	$ (2.60)	$ (0.82)	$ (5.25)
Net loss per share, diluted (in dollars per share)	$ (0.43)	$ (2.60)	$ (0.82)	$ (5.25)
Weighted-average shares used in computing net loss per share attributable to common shareholders
Basic (in shares)	44,324,000	5,597,000	44,091,000	5,216,000
Diluted (in shares)	44,324,000	5,597,000	44,091,000	5,216,000
Other comprehensive loss:
Unrealized gain (loss) on cash equivalents	$ 85	$ (9)	$ 87	$ (25)
Comprehensive loss	$ (19,099)	$ (14,589)	$ (36,282)	$ (27,427)

Condensed Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Balance at the beginning of the period (in shares) at Dec. 31, 2020	25,402
Balance at the beginning of the period at Dec. 31, 2020	$ 243,854
Balance at the end of the period (in shares) at Mar. 31, 2021	25,402
Balance at the end of the period at Mar. 31, 2021	$ 243,854
Balance at the beginning of the period (in shares) at Dec. 31, 2020		4,713
Balance at the beginning of the period at Dec. 31, 2020	(182,894)	$ 0	$ 18,788	$ (14)	$ (201,668)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance upon exercise of options (in shares)		504
Issuance upon exercise of options	1,225		1,225
Stock-based compensation expense	650		650
Unrealized gain on cash equivalents	(16)			(16)
Net loss	(12,822)				(12,822)
Balance at the end of the period (in shares) at Mar. 31, 2021		5,217
Balance at the end of the period at Mar. 31, 2021	$ (193,857)	$ 0	20,663	(30)	(214,490)
Balance at the beginning of the period (in shares) at Dec. 31, 2020	25,402
Balance at the beginning of the period at Dec. 31, 2020	$ 243,854
Balance at the end of the period (in shares) at Jun. 30, 2021	29,850
Balance at the end of the period at Jun. 30, 2021	$ 328,564
Balance at the beginning of the period (in shares) at Dec. 31, 2020		4,713
Balance at the beginning of the period at Dec. 31, 2020	(182,894)	$ 0	18,788	(14)	(201,668)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(27,402)
Balance at the end of the period (in shares) at Jun. 30, 2021		5,792
Balance at the end of the period at Jun. 30, 2021	$ (206,306)	$ 0	22,803	(39)	(229,070)
Balance at the beginning of the period (in shares) at Mar. 31, 2021	25,402
Balance at the beginning of the period at Mar. 31, 2021	$ 243,854
Redeemable Convertible Preferred Stock
Issuance of preferred stock, net of issuance costs (in shares)	4,448
Issuance of preferred stock, net of issuance costs	$ 84,710
Balance at the end of the period (in shares) at Jun. 30, 2021	29,850
Balance at the end of the period at Jun. 30, 2021	$ 328,564
Balance at the beginning of the period (in shares) at Mar. 31, 2021		5,217
Balance at the beginning of the period at Mar. 31, 2021	(193,857)	$ 0	20,663	(30)	(214,490)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance upon exercise of options (in shares)		575
Issuance upon exercise of options	1,415		1,415
Stock-based compensation expense	725		725
Unrealized gain on cash equivalents	(9)			(9)
Net loss	(14,580)				(14,580)
Balance at the end of the period (in shares) at Jun. 30, 2021		5,792
Balance at the end of the period at Jun. 30, 2021	$ (206,306)	$ 0	22,803	(39)	(229,070)
Balance at the beginning of the period (in shares) at Dec. 31, 2021	0
Balance at the beginning of the period at Dec. 31, 2021	$ 0
Balance at the end of the period (in shares) at Mar. 31, 2022	0
Balance at the end of the period at Mar. 31, 2022	$ 0
Balance at the beginning of the period (in shares) at Dec. 31, 2021		43,676
Balance at the beginning of the period at Dec. 31, 2021	267,091	$ 0	528,666	(54)	(261,521)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance upon exercise of options (in shares)		401
Issuance upon exercise of options	1,291		1,291
Stock-based compensation expense	1,552		1,552
Unrealized gain on cash equivalents	1			1
Net loss	(17,185)				(17,185)
Balance at the end of the period (in shares) at Mar. 31, 2022		44,077
Balance at the end of the period at Mar. 31, 2022	$ 252,750	$ 0	531,509	(53)	(278,706)
Balance at the beginning of the period (in shares) at Dec. 31, 2021	0
Balance at the beginning of the period at Dec. 31, 2021	$ 0
Balance at the end of the period (in shares) at Jun. 30, 2022	0
Balance at the end of the period at Jun. 30, 2022	$ 0
Balance at the beginning of the period (in shares) at Dec. 31, 2021		43,676
Balance at the beginning of the period at Dec. 31, 2021	267,091	$ 0	528,666	(54)	(261,521)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(36,369)
Balance at the end of the period (in shares) at Jun. 30, 2022		44,538
Balance at the end of the period at Jun. 30, 2022	$ 239,188	$ 0	537,046	32	(297,890)
Balance at the beginning of the period (in shares) at Mar. 31, 2022	0
Balance at the beginning of the period at Mar. 31, 2022	$ 0
Balance at the end of the period (in shares) at Jun. 30, 2022	0
Balance at the end of the period at Jun. 30, 2022	$ 0
Balance at the beginning of the period (in shares) at Mar. 31, 2022		44,077
Balance at the beginning of the period at Mar. 31, 2022	252,750	$ 0	531,509	(53)	(278,706)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance upon exercise of options (in shares)		400
Issuance upon exercise of options	1,572		1,572
Shares issued under employee stock purchase plan (in shares)		61
Shares issued under employee stock purchase plan	1,289		1,289
Stock-based compensation expense	2,676		2,676
Unrealized gain on cash equivalents	85			85
Net loss	(19,184)				(19,184)
Balance at the end of the period (in shares) at Jun. 30, 2022		44,538
Balance at the end of the period at Jun. 30, 2022	$ 239,188	$ 0	$ 537,046	$ 32	$ (297,890)

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net loss	$ (36,369)	$ (27,402)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation and amortization	1,475	1,765
Stock-based compensation expense	4,228	1,375
Change in fair value of redeemable convertible preferred stock warrants and derivative liability	74	(43)
Non-cash lease adjustment	(193)	(158)
Changes in operating assets and liabilities:
Accounts receivable, net	(6,430)	(3,591)
Inventory	(684)	(2,761)
Prepaid expenses and other current assets	471	(1,412)
Other assets	(302)	0
Accounts payable	947	2,120
Accrued compensation	431	(653)
Accrued interest expense	503	532
Deferred revenue	838	431
Other liabilities	(346)	1,690
Net cash used in operating activities	(35,357)	(28,107)
Cash flows from investing activities:
Purchases of property and equipment	(273)	(149)
Net cash used in investing activities	(273)	(149)
Cash flows from financing activities:
Proceeds from issuance of Series G preferred stock, net of issuance costs	0	84,710
Proceeds from issuance of common stock under employee stock purchase plan	1,289	0
Proceeds from issuance of common stock from the exercise of stock options	2,864	2,640
Net cash provided by financing activities	4,153	87,350
Net (decrease) increase in cash, cash equivalents and restricted cash	(31,477)	59,094
Cash, cash equivalents, and restricted cash- Beginning of period	305,097	100,907
Cash, cash equivalents, and restricted cash - End of period	273,620	160,001
Reconciliation of cash, cash equivalents and restricted cash to balance sheets:
Cash and cash equivalents	269,806	159,224
Restricted cash	3,814	777
Cash, cash equivalents and restricted cash in balance sheets	273,620	160,001
Supplemental cash flow information
Interest paid	2,369	2,369
Non-cash investing and financing activities
Transfer of evaluation units from inventory to property and equipment, net	53	(439)
Property and equipment included in accounts payable and other current liabilities	566	226
Deferred offering costs included in accounts payable and other current liabilities	$ 0	$ 856

Organization	6 Months Ended
Organization	Jun. 30, 2022
Accounting Policies [Abstract]
Organization	Organization Description of Business PROCEPT BioRobotics Corporation (the “Company”) is a surgical robotics company focused on advancing patient care by developing transformative solutions in urology. It develops, manufactures and sells the AquaBeam Robotic System, an advanced, image-guided, surgical robotic system for use in minimally invasive urologic surgery, with an initial focus on treating benign prostatic hyperplasia, or BPH. BPH is the most common prostate disease and impacts approximately 40 million men in the United States. The AquaBeam Robotic System employs a single-use disposable handpiece to deliver the Company’s proprietary Aquablation therapy, which combines real-time, multi-dimensional imaging, personalized treatment planning, automated robotics and heat-free waterjet ablation for targeted and rapid removal of prostate tissue. The Company designed its AquaBeam Robotic System to enable consistent and reproducible BPH surgery outcomes. The Company received U.S. Food and Drug Administration clearance in December 2017 to market its AquaBeam Robotic System. Liquidity As of June 30, 2022, the Company had cash and cash equivalents of $269.8 million, and an accumulated deficit of $297.9 million. In September 2021, the Company completed its initial public offering (“IPO”) for net proceeds of approximately $172.4 million, after deducting underwriting discounts and commissions and offering expenses. Since its inception, the Company has financed its operations with a combination of debt and equity financing arrangements. The Company expects its cash and cash equivalents, revenue and available debt financing arrangements will be sufficient to fund its operations through at least the next twelve months from the issuance date of these financial statements. The Company has not achieved positive cash flow from operations to date and expects to continue incurring losses for the foreseeable future as it focuses on growing its business. The COVID-19 pandemic and the resulting economic downturn are affecting business conditions in the industry in which the Company operates. In response to the pandemic, many state and local governments in the United States issued orders that temporarily precluded elective medical procedures in order to conserve scarce health system resources. The Company has taken necessary precautions to safeguard its employees, patients, customers, and other stakeholders from the COVID-19 pandemic, while maintaining business continuity to support its patients, customers and employees. The timing, extent and continuation of any increase in procedures, and any corresponding increase in sales of the Company’s products, and whether there could be a future decrease in the current level of procedures as a result of the COVID-19 pandemic or otherwise, remain uncertain and are subject to a variety of factors.

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The condensed consolidated financial statements have been presented in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”). These condensed consolidated financial statements include the accounts of the Company and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. The Company operates as one reportable segment. Unaudited Interim Financial Statements The accompanying balance sheet as of June 30, 2022, the statements of operations and comprehensive loss for the three and six months ended June 30, 2022 and 2021, and cash flows for the six months ended June 30, 2022 and 2021, and the statements of redeemable convertible preferred stock and stockholders’ equity (deficit) as of June 30, 2022 and 2021, are unaudited. The financial data and other information disclosed in these notes to the financial statements related to June 30, 2022, and the three and six months ended June 30, 2022 and 2021, are also unaudited. The accompanying balance sheet as of December 31, 2021 have been derived from the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K (“Annual Report”) filed with the Securities and Exchange Commission. The unaudited interim financial statements have been prepared on the same basis as the annual financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary to a fair statement of the Company’s financial position as of June 30, 2022, and the results of its operations and cash flows for the three and six months ended June 30, 2022 and 2021. The results for the three and six months ended June 30, 2022, are not necessarily indicative of results to be expected for the year ending December 31, 2022, or for any other interim period or for any future year and should be read in conjunction with the annual consolidated financial statements included in the Company’s Annual Report. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts and disclosures reported in the condensed consolidated financial statements. Management uses significant judgment when making estimates related to its common stock valuation in periods before the Company’s IPO and related stock-based compensation expense, right-of-use lease asset, lease liability, and loan facility derivative liability, as well as certain accrued liabilities. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates. Initial Public Offering In September 2021, the Company completed its IPO by issuing 6,556,000 shares of common stock, and the exercise of the underwriters option for 983,400 shares, at an offering price of $25.00 per share, for total net proceeds of approximately $172.4 million, after deducting underwriting discounts and commissions of $13.2 million and offering expenses of $2.9 million. Offering costs are capitalized, and consist of fees and expenses incurred in connection with the sale of common stock in its IPO, including legal, accounting, printing and other IPO-related costs. Upon completion of its IPO, these deferred offering costs were reclassified to stockholders’ equity and recorded against the proceeds from the offering. In addition, all 29,912,264 shares of its then-outstanding redeemable convertible preferred stock automatically converted into 29,912,264 shares of common stock and it reclassified $329.5 million of redeemable convertible preferred stock to additional paid-in capital on its condensed consolidated balance sheet. Also, upon the completion of the Company’s IPO, the Company’s 62,454 redeemable convertible preferred stock warrants were exercised and the remaining unexercised warrants expired. JOBS Act Accounting Election The Company is an emerging growth company, as defined in the JOBS Act. Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until such time as those standards apply to private companies. The Company has elected to avail itself of this exemption and, therefore, for new or revised accounting standards applicable to public companies, the Company will be subject to an extended transition period until those standards would otherwise apply to private companies. Recently Issued Accounting Pronouncements In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2020-4, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-4”). The amendments in ASU 2020-4 provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. These amendments apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. These amendments are effective for all entities as of March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact of the adoption of this ASU on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires an entity to utilize a new impairment model known as the current expected credit loss (“CECL”) model to estimate its lifetime “expected credit loss” and record an allowance that, when deducted from the amortized cost basis of the financial assets and certain other instruments, including but not limited to available-for-sale debt securities. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security. ASU 2016-13 requires a cumulative effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815) and Leases (Topic 842): Effective Dates, which defers the effective date of ASU 2016-13 to fiscal years beginning after December 15, 2022 for all entities except SEC reporting companies that are not smaller reporting companies. ASU 2016-13 will be effective for the Company beginning January 1, 2023. The Company is currently evaluating the impact of the adoption of this ASU on its consolidated financial statements. Significant Accounting Policies Property and Equipment Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation and amortization for property and equipment are determined using the straight-line method over the estimated useful lives of the respective assets, generally three to five years. As of June 30, 2022, the Company no longer reclassifies inventory used at customer sites for evaluation purposes to property and equipment due to change in customary business practices. During the three months ended June 30, 2022, with the exception of the accounting policy above, there have been no material changes to the Company’s significant accounting policies as described in its 2021 Annual Report or the first quarter 2022 Quarterly Report that have had a material impact on the Company’s condensed consolidated financial statements and related notes.

Fair Value Measurements

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements

The following is a summary of assets and liabilities measured at fair value on a recurring basis (in thousands):


	June 30, 2022
	Level 1		Level 2		Level 3		Total

Cash and cash equivalents:
Cash	$	3,810	$	—	$	—	$	3,810
Cash equivalents	265,996		—		—		$	265,996
Total cash and cash equivalents	$	269,806	$	—	$	—	$	269,806


Loan facility derivative liability	$	—	$	—	$	1,570	$	1,570


	December 31, 2021
	Level 1		Level 2		Level 3		Total

Cash and cash equivalents:
Cash	$	13,621	$	—	$	—	$	13,621
Cash equivalents	290,699		—		—		290,699
Total cash and cash equivalents	$	304,320	$	—	$	—	$	304,320


Loan facility derivative liability	$	—	$	—	$	1,496	$	1,496

Cash equivalents consist primarily of money market funds and treasury securities.

There were no transfers in and out of Level 3 during the three and six months ended June 30, 2022 and year ended December 31, 2021.

The fair value of the loan facility derivative liability was determined using a discounted cash flow calculation discounted at 10%.

The following table sets forth a summary of the changes in the estimated fair value of the Company’s loan facility derivative liability, classified as Level 3 (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Beginning of the period	$	1,533	$	1,825	$	1,496	$	1,782
Issued	—		—		—		—
Change in fair value	37		(38)		74		5
End of the period	$	1,570	$	1,787	$	1,570	$	1,787

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Inventory

6 Months Ended

Jun. 30, 2022

Inventory Disclosure [Abstract]

Inventory

Inventory consists of the following (in thousands):


	June 30,		December 31,
	2022		2021

Raw materials	$	5,329	$	6,740
Work-in-process	1,025		905
Finished goods	7,423		5,502
Total inventory	$	13,777	$	13,147

Intangible Assets	6 Months Ended
Intangible Assets	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible Assets In March 2019, the Company entered into a license agreement with HydroCision, Inc. This agreement grants the Company an exclusive, perpetual, irrevocable, worldwide, fully paid-up license to develop, manufacture and commercialize products in the field of urology using the patented technology and know-how controlled by HydroCision as of the effective date and as well as new patented technology developed by HydroCision that cover certain activities and improvements that relate to the use of fluid jet technology in connection with the licensed products during the period commencing on the effective date and ending on the earlier of the date that the Company ceases to use HydroCision’s existing contract manufacturers and the third anniversary of the effective date. Also included is the right to utilize HydroCision’s contract manufacturers, if desired. The consideration paid was a one-time upfront payment of $2.5 million, as well as allowing HydroCision (a reciprocal license) to use any new patented technology and know-how developed by the Company relating to the HydroCision patented technology and know-how in the field of urology for HydroCision use outside the field of urology. HydroCision will pay for any patent maintenance fees on HydroCision’s licensed patents. As of June 30, 2022 and December 31, 2021, accumulated amortization was $0.9 million and $0.8 million, respectively, and the net carrying amount is expected to be amortized at a rate of $0.3 million per year until fully amortized. Amortization expense for intangible assets was $0.1 million and $0.1 million for the three and six months ended June 30, 2022 and 2021.

Loan Facility and Derivative Liability	6 Months Ended
Loan Facility and Derivative Liability	Jun. 30, 2022
Debt Disclosure [Abstract]
Loan Facility and Derivative Liability	Loan Facility and Derivative LiabilityIn September 2019, the Company entered into a loan facility for up to $75.0 million available in four installments. The Company borrowed $25.0 million in September 2019. An additional $25.0 million was borrowed in March 2020. The third installment of $10.0 million was originally available for draw through March 31, 2021 contingent upon achieving $20.0 million in trailing six months revenue. In January 2021, the third installment was amended to be available for draw through June 30, 2021 contingent upon achieving $6.4 million trailing six months revenue. The remaining $15.0 million was originally available for draw through June 30, 2021 and is contingent upon achieving $25.0 million in trailing six months revenue. In January 2021, this installment was amended to be available for draw through June 30, 2022. The facility bears an interest rate of the greater of (i) 9.37% and (ii) 7.17% plus 30 day LIBOR. The initial term of the facility is 60 months with interest-only payments each month for 24 months followed by 36 months amortization of principal and interest. In January 2021, the interest-only period was amended to 36 months followed by 24 months amortization (principal and interest) beginning October 1, 2022 since the amended trailing six months target revenue of $6.4 million was achieved, and accordingly, the current portion of the amount due was reclassified to non-current. Upon drawing the final $15.0 million tranche, the interest-only period was extended 12 months followed by 24 months amortization of principal and interest. Upon the completion of the Company raising over $50.0 million in its IPO in September 2021, interest-only payments were extended an additional 12 months followed by 12 months amortization of principal and interest. Substantially all assets of the Company are pledged as collateral. Commencing with the earlier of June 30, 2021 and the month following the funding of either the third or final installment, the Company is required to achieve revenues for the previous six months ended equal to the greater of (1) 70% of the forecast for the commensurate period, (2) $15.0 million if neither third or final installments have been drawn, (3) $20.0 million if the third but not final installment has been drawn and (4) $25.0 million if both the third and final installments have been drawn. The loan facility includes certain fees payable to the lender recorded as a loan discount that are accrued and amortized to interest expense during the loan term. A 6% final payment fee of each funded tranche is payable at the earlier of prepayment or loan maturity and a 0.25% facility fee paid at each funded tranche. A prepayment fee was originally payable if the loan is paid before maturity in the amount of 3% of loans outstanding if paid in full during first 12 months, 2% if loan is paid in full during second twelve months, or 1% if loan is paid in full thereafter before maturity. In January 2021, the prepayment fee was removed as part of the amendments. In addition, the Company would pay the lender’s loan initiation fees and a fee upon the earlier occurrence of a defined liquidity event, including but not limited to, a merger or sale of the Company’s assets or voting stock, or achieving a $200 million trailing twelve months revenue target, in each case, by September 2029. The success fees are calculated at the time of the liquidity event occurrence to be $1.0 million if only the first installment has been drawn, $2.0 million if the first two installments have been drawn, $2.4 million if the first three installments have been drawn, or $3.0 million if all four installments have been drawn, in each case, upon the occurrence of the defined liquidity event. As of June 30, 2022, the Company has drawn on the first two installments. The Company determined that this obligation to pay success fees represents freestanding financial instruments. The amendments in January 2021 were accounted for as a debt modification under ASC 470-50-40 as the changes in the debt terms are not considered substantial, and thus no gain or loss was recorded and a new effective interest rate was established based on the carrying value of the loan and the revised cash flows. In connection with the Company’s loan facility, the Company is obligated to pay a fee upon the earlier occurrence of a defined liquidity event, including but not limited to, a merger or sale of its assets or voting stock, or achieving a $200.0 million trailing twelve months revenue target, in each case, by September 2029. The fee is calculated at the time of the liquidity event occurrence to be $1.0 million if only the first installment has been drawn, $2.0 million if the first two installments have been drawn, $2.4 million if the first three installments have been drawn, or $3.0 million if all four installments have been drawn, in each case, upon the occurrence of the liquidity event. As of June 30, 2022, the Company has drawn on the first two installments. The Company has determined this fee is a freestanding derivative instrument. The initial $1.4 million fair value of this loan facility derivative was recorded as a debt discount and liability on the date of issuance in connection with obtaining additional financing as applicable and will be revalued every reporting period until the earlier occurrence of a defined liquidity event or achieving a revenue target by September 2029 or termination of such fee arrangement.
Loan Facility and Derivative Liability	Loan Facility and Derivative LiabilityIn September 2019, the Company entered into a loan facility for up to $75.0 million available in four installments. The Company borrowed $25.0 million in September 2019. An additional $25.0 million was borrowed in March 2020. The third installment of $10.0 million was originally available for draw through March 31, 2021 contingent upon achieving $20.0 million in trailing six months revenue. In January 2021, the third installment was amended to be available for draw through June 30, 2021 contingent upon achieving $6.4 million trailing six months revenue. The remaining $15.0 million was originally available for draw through June 30, 2021 and is contingent upon achieving $25.0 million in trailing six months revenue. In January 2021, this installment was amended to be available for draw through June 30, 2022. The facility bears an interest rate of the greater of (i) 9.37% and (ii) 7.17% plus 30 day LIBOR. The initial term of the facility is 60 months with interest-only payments each month for 24 months followed by 36 months amortization of principal and interest. In January 2021, the interest-only period was amended to 36 months followed by 24 months amortization (principal and interest) beginning October 1, 2022 since the amended trailing six months target revenue of $6.4 million was achieved, and accordingly, the current portion of the amount due was reclassified to non-current. Upon drawing the final $15.0 million tranche, the interest-only period was extended 12 months followed by 24 months amortization of principal and interest. Upon the completion of the Company raising over $50.0 million in its IPO in September 2021, interest-only payments were extended an additional 12 months followed by 12 months amortization of principal and interest. Substantially all assets of the Company are pledged as collateral. Commencing with the earlier of June 30, 2021 and the month following the funding of either the third or final installment, the Company is required to achieve revenues for the previous six months ended equal to the greater of (1) 70% of the forecast for the commensurate period, (2) $15.0 million if neither third or final installments have been drawn, (3) $20.0 million if the third but not final installment has been drawn and (4) $25.0 million if both the third and final installments have been drawn. The loan facility includes certain fees payable to the lender recorded as a loan discount that are accrued and amortized to interest expense during the loan term. A 6% final payment fee of each funded tranche is payable at the earlier of prepayment or loan maturity and a 0.25% facility fee paid at each funded tranche. A prepayment fee was originally payable if the loan is paid before maturity in the amount of 3% of loans outstanding if paid in full during first 12 months, 2% if loan is paid in full during second twelve months, or 1% if loan is paid in full thereafter before maturity. In January 2021, the prepayment fee was removed as part of the amendments. In addition, the Company would pay the lender’s loan initiation fees and a fee upon the earlier occurrence of a defined liquidity event, including but not limited to, a merger or sale of the Company’s assets or voting stock, or achieving a $200 million trailing twelve months revenue target, in each case, by September 2029. The success fees are calculated at the time of the liquidity event occurrence to be $1.0 million if only the first installment has been drawn, $2.0 million if the first two installments have been drawn, $2.4 million if the first three installments have been drawn, or $3.0 million if all four installments have been drawn, in each case, upon the occurrence of the defined liquidity event. As of June 30, 2022, the Company has drawn on the first two installments. The Company determined that this obligation to pay success fees represents freestanding financial instruments. The amendments in January 2021 were accounted for as a debt modification under ASC 470-50-40 as the changes in the debt terms are not considered substantial, and thus no gain or loss was recorded and a new effective interest rate was established based on the carrying value of the loan and the revised cash flows. In connection with the Company’s loan facility, the Company is obligated to pay a fee upon the earlier occurrence of a defined liquidity event, including but not limited to, a merger or sale of its assets or voting stock, or achieving a $200.0 million trailing twelve months revenue target, in each case, by September 2029. The fee is calculated at the time of the liquidity event occurrence to be $1.0 million if only the first installment has been drawn, $2.0 million if the first two installments have been drawn, $2.4 million if the first three installments have been drawn, or $3.0 million if all four installments have been drawn, in each case, upon the occurrence of the liquidity event. As of June 30, 2022, the Company has drawn on the first two installments. The Company has determined this fee is a freestanding derivative instrument. The initial $1.4 million fair value of this loan facility derivative was recorded as a debt discount and liability on the date of issuance in connection with obtaining additional financing as applicable and will be revalued every reporting period until the earlier occurrence of a defined liquidity event or achieving a revenue target by September 2029 or termination of such fee arrangement.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Section 50
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-Publisher FASB
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(c))
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+ Details

Stock-Based Compensation

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock Options

The Company had 4.5 million shares available for grant as of June 30, 2022 under the 2021 Equity Incentive Award Plan. The Company ceased making awards under the 2008 Stock Plan upon the effective date of the Company’s IPO.

A summary of the Company’s stock option activity and related information are as follows (shares in thousands):


	Six Months Ended
	June 30, 2022

	Number of Shares	Weighted Average Exercise Price
Outstanding, beginning of period	6,365	$	5.34
Granted	254	35.58
Exercised	(802)	3.57
Forfeited	(151)	7.09
Outstanding, end of period	5,666	6.90
Vested and expected to vest	5,666	6.90
Exercisable	2,933	4.63

As of June 30, 2022 and December 31, 2021, the aggregate pre-tax intrinsic value of options outstanding and exercisable was $82.3 million and $64.3 million, respectively, and the aggregate pre-tax intrinsic value options outstanding were $147.1 million and $125.7 million, respectively. The aggregate pre-tax intrinsic value of options exercised was $21.7 million and $3.4 million during the six months ended June 30, 2022 and 2021, respectively.

As of June 30, 2022, there was a total of $11.4 million of unrecognized stock-based compensation expense related to stock options.

The fair value of the options granted to employees or directors was estimated as of the grant date using the Black-Scholes model assuming the weighted-average assumptions listed in the following table:


	Three Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022			2021

Expected life (years)	5.8			6.0			5.9			6.0
Expected volatility	56		%	52		%	55		%	49		%
Risk-free interest rate	2.9		%	1.1		%	2.5		%	1.1		%
Expected dividend rate	—		%	—		%	—		%	—		%
Weighted-average fair value	$	20.07		$	3.59		$	19.15		$	3.14

Restricted Stock Units

A summary of the Company’s restricted stock unit (“RSU”) activity and related information are as follows (restricted stock units in thousands):


	Six Months Ended
	June 30, 2022

	Number of Shares	Weighted Average Grant Date Fair Value
Outstanding, beginning of period	35	$	34.78
Awarded	538	34.14

Forfeited	(14)	31.76
Outstanding, end of period	559	34.22

As of June 30, 2022, there was a total of $17.8 million of unrecognized stock-based compensation expense related to RSUs.

Employee Stock Purchase Plan

As of June 30, 2022, there was approximately $0.7 million of unrecognized cost related to employee stock purchases under the Employee Stock Purchase Plan (“ESPP”). This cost is expected to be recognized over a weighted average period of 0.5 years. As of June 30, 2022, a total of 0.8 million shares were available for issuance under the ESPP.

The fair value of the awards granted under the ESPP for the six months ended June 30, 2022 to employees was estimated as of the grant date using the Black-Scholes model assuming the weighted-average assumptions listed in the following table:


	Six Months Ended June 30,
	2022

Expected life (years)	0.8
Expected volatility	57		%
Risk-free interest rate	1.8		%
Expected dividend rate	—		%
Weighted-average fair value	$	12.25

Total stock-based compensation recognized, before taxes, are as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Cost of sales	$	252	$	51	$	375	$	74
Research and development	553		155		853		307
Sales, general and administrative	1,871		519		3,000		994
Total stock-based compensation	$	2,676	$	725	$	4,228	$	1,375

Net Loss Per Share

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Net Loss Per Share

Upon the completion of the Company’s IPO in September 2021, all 29,912,264 shares of its then-outstanding redeemable convertible preferred stock automatically converted into 29,912,264 shares of common stock.

Net loss per share was determined as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Net loss	$	(19,184)	$	(14,580)	$	(36,369)	$	(27,402)
Weighted-average common stock outstanding	44,324		5,597		44,091		5,216
Net loss per share, basic and diluted	$	(0.43)	$	(2.60)	$	(0.82)	$	(5.25)

The following potentially dilutive securities outstanding have been excluded from the computations of weighted-average shares outstanding because such securities have an antidilutive impact due to losses reported (in common stock equivalent shares, in thousands):


	As of June 30,
	2022	2021

Redeemable convertible preferred stock outstanding	—	29,850
Redeemable convertible preferred stock warrants	—	72
Common stock options	5,666	6,621
Restricted stock units	559	—
Employee stock purchase plan	61	—
Total	6,286	36,543

Revenue

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue

The following table presents revenue disaggregated by type and geography (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
U.S.
System sales and rentals	$	8,516	$	4,770	$	16,270	$	9,330
Handpieces and other consumables	5,723		1,653		10,167		3,274
Service	567		137		929		209
Total U.S. revenue	14,806		6,560		27,366		12,813
Outside of U.S.
System sales and rentals	869		973		1,610		1,244
Handpieces and other consumables	832		890		1,578		1,493
Service	184		53		334		118
Total outside of U.S. revenue	1,885		1,916		3,522		2,855
Total revenue	$	16,691	$	8,476	$	30,888	$	15,668

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Segment, Geographical, and Customer Concentration

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Segment, Geographical, and Customer Concentration

The Company operates as a single operating segment. The Company’s chief operating decision maker, its Chief Executive Officer, reviews financial information on an aggregate basis for the purposes of allocating resources and evaluating financial performance. The Company’s long-lived assets are primarily based in the United States.

No customers accounted for more than 10% of revenue during the three and six months ended June 30, 2022 and 2021.

No customers accounted for more than 10% of accounts receivable at June 30, 2022. One customer accounted for 11% of accounts receivable at December 31, 2021.

The Company’s revenue by geographical location is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

United States	89	%	77	%	89	%	82	%
Outside the United States	11	%	23	%	11	%	18	%

Segment, Geographical, and Customer Concentration

No customers accounted for more than 10% of revenue during the three and six months ended June 30, 2022 and 2021.

No customers accounted for more than 10% of accounts receivable at June 30, 2022. One customer accounted for 11% of accounts receivable at December 31, 2021.

The Company’s revenue by geographical location is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

United States	89	%	77	%	89	%	82	%
Outside the United States	11	%	23	%	11	%	18	%

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Commitments and Contingencies

6 Months Ended

Jun. 30, 2022

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Guarantees and Indemnifications

In the normal course of business, the Company enters into agreements that contain a variety of representations and provide for general indemnification. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future. To date, the Company has not paid any claims or been required to defend any action related to its indemnification obligations. As of June 30, 2022 and December 31, 2021, the Company does not have any material indemnification claims that were probable or reasonably possible and consequently has not recorded related liabilities.

Facility Lease

In July 2013, the Company entered into a lease agreement for its current facility located in Redwood City, California. In 2018, the Company expanded the lease space and extended the lease agreement through October 2023. The lease agreement provides for an escalation of rent payments each year and the Company records rent expense on a straight-line basis over the term of the lease.

Rent expense recognized under the lease, including additional rent charges for utilities, parking, maintenance, and real estate taxes, was $0.7 million for both the three months ended June 30, 2022 and 2021, respectively, and $1.4 million and $1.3 million for the six months ended June 30, 2022 and 2021, respectively.


As of June 30, 2022	Minimum Lease Payments		Debt Repayments		Total
2022	$	1,238	$	—	$	1,238
2023	2,092		12,500		14,592
2024	—		37,500		37,500


Total minimum payments	3,330		50,000		53,330
Less: amount representing interest/unamortized debt discount	(243)		507		264
Present value of future payments	3,087		50,507		53,594
Less: current portion	(2,258)		—		(2,258)
Non-current portion	$	829	$	50,507	$	51,336

As of June 30, 2022 and December 31, 2021, the Company’s security deposit is in the form of, and recorded as, restricted cash.

In December 2021, the Company entered into a lease for two existing buildings, comprising approximately 158,221 square feet of space, located in San Jose, California. The lease commenced in July 2022, and will continue for 122 months following thereafter, with two five year options to extend the term of the lease. The Lease provides for annual base rent of $4.3 million for the first year, which increases on a yearly basis up to $5.5 million for the tenth year, for an aggregate of $49.2 million. Under the terms of the lease, the Company will receive an allowance of up to $7.9 million from the landlord to be applied to the Company’s construction of tenant improvements following the landlord’s delivery of the two buildings to the Company. The Company is currently assessing the accounting impact of the lease on its consolidated financial statements.

Commitments and Contingencies

Guarantees and Indemnifications

Facility Lease


As of June 30, 2022	Minimum Lease Payments		Debt Repayments		Total
2022	$	1,238	$	—	$	1,238
2023	2,092		12,500		14,592
2024	—		37,500		37,500


Total minimum payments	3,330		50,000		53,330
Less: amount representing interest/unamortized debt discount	(243)		507		264
Present value of future payments	3,087		50,507		53,594
Less: current portion	(2,258)		—		(2,258)
Non-current portion	$	829	$	50,507	$	51,336

As of June 30, 2022 and December 31, 2021, the Company’s security deposit is in the form of, and recorded as, restricted cash.

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2022
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements have been presented in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) and pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”). These condensed consolidated financial statements include the accounts of the Company and its consolidated subsidiaries. All intercompany balances and transactions have been eliminated upon consolidation. The Company operates as one reportable segment.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts and disclosures reported in the condensed consolidated financial statements. Management uses significant judgment when making estimates related to its common stock valuation in periods before the Company’s IPO and related stock-based compensation expense, right-of-use lease asset, lease liability, and loan facility derivative liability, as well as certain accrued liabilities. Management bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from those estimates.
Initial Public Offering	Initial Public Offering In September 2021, the Company completed its IPO by issuing 6,556,000 shares of common stock, and the exercise of the underwriters option for 983,400 shares, at an offering price of $25.00 per share, for total net proceeds of approximately $172.4 million, after deducting underwriting discounts and commissions of $13.2 million and offering expenses of $2.9 million. Offering costs are capitalized, and consist of fees and expenses incurred in connection with the sale of common stock in its IPO, including legal, accounting, printing and other IPO-related costs. Upon completion of its IPO, these deferred offering costs were reclassified to stockholders’ equity and recorded against the proceeds from the offering. In addition, all 29,912,264 shares of its then-outstanding redeemable convertible preferred stock automatically converted into 29,912,264 shares of common stock and it reclassified $329.5 million of redeemable convertible preferred stock to additional paid-in capital on its condensed consolidated balance sheet. Also, upon the completion of the Company’s IPO, the Company’s 62,454 redeemable convertible preferred stock warrants were exercised and the remaining unexercised warrants expired.
Jobs Act Accounting Election	JOBS Act Accounting Election The Company is an emerging growth company, as defined in the JOBS Act. Under the JOBS Act, emerging growth companies can delay adopting new or revised accounting standards issued subsequent to the enactment of the JOBS Act until such time as those standards apply to private companies. The Company has elected to avail itself of this exemption and, therefore, for new or revised accounting standards applicable to public companies, the Company will be subject to an extended transition period until those standards would otherwise apply to private companies.
Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In March 2020, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2020-4, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-4”). The amendments in ASU 2020-4 provide optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. These amendments apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The expedients and exceptions provided do not apply to contract modifications made and hedging relationships entered into or evaluated after December 31, 2022, except for hedging relationships existing as of December 31, 2022, that an entity has elected certain optional expedients for and that are retained through the end of the hedging relationship. These amendments are effective for all entities as of March 12, 2020 through December 31, 2022. The Company is currently evaluating the impact of the adoption of this ASU on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”), which requires an entity to utilize a new impairment model known as the current expected credit loss (“CECL”) model to estimate its lifetime “expected credit loss” and record an allowance that, when deducted from the amortized cost basis of the financial assets and certain other instruments, including but not limited to available-for-sale debt securities. Credit losses relating to available-for-sale debt securities will be recorded through an allowance for credit losses rather than as a direct write-down to the security. ASU 2016-13 requires a cumulative effect adjustment to the balance sheet as of the beginning of the first reporting period in which the guidance is effective. In November 2019, the FASB issued ASU 2019-10, Financial Instruments—Credit Losses (Topic 326), Derivatives and Hedging (Topic 815) and Leases (Topic 842): Effective Dates, which defers the effective date of ASU 2016-13 to fiscal years beginning after December 15, 2022 for all entities except SEC reporting companies that are not smaller reporting companies. ASU 2016-13 will be effective for the Company beginning January 1, 2023. The Company is currently evaluating the impact of the adoption of this ASU on its consolidated financial statements. Significant Accounting Policies Property and Equipment Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation and amortization for property and equipment are determined using the straight-line method over the estimated useful lives of the respective assets, generally three to five years. As of June 30, 2022, the Company no longer reclassifies inventory used at customer sites for evaluation purposes to property and equipment due to change in customary business practices. During the three months ended June 30, 2022, with the exception of the accounting policy above, there have been no material changes to the Company’s significant accounting policies as described in its 2021 Annual Report or the first quarter 2022 Quarterly Report that have had a material impact on the Company’s condensed consolidated financial statements and related notes.

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following is a summary of assets and liabilities measured at fair value on a recurring basis (in thousands):


	June 30, 2022
	Level 1		Level 2		Level 3		Total

Cash and cash equivalents:
Cash	$	3,810	$	—	$	—	$	3,810
Cash equivalents	265,996		—		—		$	265,996
Total cash and cash equivalents	$	269,806	$	—	$	—	$	269,806


Loan facility derivative liability	$	—	$	—	$	1,570	$	1,570


	December 31, 2021
	Level 1		Level 2		Level 3		Total

Cash and cash equivalents:
Cash	$	13,621	$	—	$	—	$	13,621
Cash equivalents	290,699		—		—		290,699
Total cash and cash equivalents	$	304,320	$	—	$	—	$	304,320


Loan facility derivative liability	$	—	$	—	$	1,496	$	1,496

Schedule of Derivative Liabilities at Fair Value

The following table sets forth a summary of the changes in the estimated fair value of the Company’s loan facility derivative liability, classified as Level 3 (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Beginning of the period	$	1,533	$	1,825	$	1,496	$	1,782
Issued	—		—		—		—
Change in fair value	37		(38)		74		5
End of the period	$	1,570	$	1,787	$	1,570	$	1,787

Inventory (Tables)

6 Months Ended

Jun. 30, 2022

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory consists of the following (in thousands):


	June 30,		December 31,
	2022		2021

Raw materials	$	5,329	$	6,740
Work-in-process	1,025		905
Finished goods	7,423		5,502
Total inventory	$	13,777	$	13,147

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Share-based Payment Arrangement [Abstract]

Schedule of Stock Option Activity and Related Information

A summary of the Company’s stock option activity and related information are as follows (shares in thousands):


	Six Months Ended
	June 30, 2022

	Number of Shares	Weighted Average Exercise Price
Outstanding, beginning of period	6,365	$	5.34
Granted	254	35.58
Exercised	(802)	3.57
Forfeited	(151)	7.09
Outstanding, end of period	5,666	6.90
Vested and expected to vest	5,666	6.90
Exercisable	2,933	4.63

Schedule of Fair Value Assumptions


	Three Months Ended June 30,						Six Months Ended June 30,
	2022			2021			2022			2021

Expected life (years)	5.8			6.0			5.9			6.0
Expected volatility	56		%	52		%	55		%	49		%
Risk-free interest rate	2.9		%	1.1		%	2.5		%	1.1		%
Expected dividend rate	—		%	—		%	—		%	—		%
Weighted-average fair value	$	20.07		$	3.59		$	19.15		$	3.14


	Six Months Ended June 30,
	2022

Expected life (years)	0.8
Expected volatility	57		%
Risk-free interest rate	1.8		%
Expected dividend rate	—		%
Weighted-average fair value	$	12.25

Share-based Payment Arrangement, Outstanding Award, Activity, Excluding Option

A summary of the Company’s restricted stock unit (“RSU”) activity and related information are as follows (restricted stock units in thousands):


	Six Months Ended
	June 30, 2022

	Number of Shares	Weighted Average Grant Date Fair Value
Outstanding, beginning of period	35	$	34.78
Awarded	538	34.14

Forfeited	(14)	31.76
Outstanding, end of period	559	34.22

Share-based Payment Arrangement, Expensed and Capitalized, Amount

Total stock-based compensation recognized, before taxes, are as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Cost of sales	$	252	$	51	$	375	$	74
Research and development	553		155		853		307
Sales, general and administrative	1,871		519		3,000		994
Total stock-based compensation	$	2,676	$	725	$	4,228	$	1,375

Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic

Net loss per share was determined as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Net loss	$	(19,184)	$	(14,580)	$	(36,369)	$	(27,402)
Weighted-average common stock outstanding	44,324		5,597		44,091		5,216
Net loss per share, basic and diluted	$	(0.43)	$	(2.60)	$	(0.82)	$	(5.25)

Schedule of Earnings Per Share, Diluted

Net loss per share was determined as follows (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

Net loss	$	(19,184)	$	(14,580)	$	(36,369)	$	(27,402)
Weighted-average common stock outstanding	44,324		5,597		44,091		5,216
Net loss per share, basic and diluted	$	(0.43)	$	(2.60)	$	(0.82)	$	(5.25)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share


	As of June 30,
	2022	2021

Redeemable convertible preferred stock outstanding	—	29,850
Redeemable convertible preferred stock warrants	—	72
Common stock options	5,666	6,621
Restricted stock units	559	—
Employee stock purchase plan	61	—
Total	6,286	36,543

Revenue (Tables)

6 Months Ended

Jun. 30, 2022

Revenue from Contract with Customer [Abstract]

Revenue from External Customers by Geographic Areas

The following table presents revenue disaggregated by type and geography (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
U.S.
System sales and rentals	$	8,516	$	4,770	$	16,270	$	9,330
Handpieces and other consumables	5,723		1,653		10,167		3,274
Service	567		137		929		209
Total U.S. revenue	14,806		6,560		27,366		12,813
Outside of U.S.
System sales and rentals	869		973		1,610		1,244
Handpieces and other consumables	832		890		1,578		1,493
Service	184		53		334		118
Total outside of U.S. revenue	1,885		1,916		3,522		2,855
Total revenue	$	16,691	$	8,476	$	30,888	$	15,668

The Company’s revenue by geographical location is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

United States	89	%	77	%	89	%	82	%
Outside the United States	11	%	23	%	11	%	18	%

Revenue from External Customers by Products and Services

The following table presents revenue disaggregated by type and geography (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
U.S.
System sales and rentals	$	8,516	$	4,770	$	16,270	$	9,330
Handpieces and other consumables	5,723		1,653		10,167		3,274
Service	567		137		929		209
Total U.S. revenue	14,806		6,560		27,366		12,813
Outside of U.S.
System sales and rentals	869		973		1,610		1,244
Handpieces and other consumables	832		890		1,578		1,493
Service	184		53		334		118
Total outside of U.S. revenue	1,885		1,916		3,522		2,855
Total revenue	$	16,691	$	8,476	$	30,888	$	15,668

Segment, Geographical, and Customer Concentration (Tables)

6 Months Ended

Jun. 30, 2022

Segment Reporting [Abstract]

Revenue from External Customers by Geographic Areas

The following table presents revenue disaggregated by type and geography (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
U.S.
System sales and rentals	$	8,516	$	4,770	$	16,270	$	9,330
Handpieces and other consumables	5,723		1,653		10,167		3,274
Service	567		137		929		209
Total U.S. revenue	14,806		6,560		27,366		12,813
Outside of U.S.
System sales and rentals	869		973		1,610		1,244
Handpieces and other consumables	832		890		1,578		1,493
Service	184		53		334		118
Total outside of U.S. revenue	1,885		1,916		3,522		2,855
Total revenue	$	16,691	$	8,476	$	30,888	$	15,668

The Company’s revenue by geographical location is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021

United States	89	%	77	%	89	%	82	%
Outside the United States	11	%	23	%	11	%	18	%

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2022

Commitments and Contingencies Disclosure [Abstract]

Future minimum lease payments


As of June 30, 2022	Minimum Lease Payments		Debt Repayments		Total
2022	$	1,238	$	—	$	1,238
2023	2,092		12,500		14,592
2024	—		37,500		37,500


Total minimum payments	3,330		50,000		53,330
Less: amount representing interest/unamortized debt discount	(243)		507		264
Present value of future payments	3,087		50,507		53,594
Less: current portion	(2,258)		—		(2,258)
Non-current portion	$	829	$	50,507	$	51,336

Schedule of Maturities of Long-term Debt


As of June 30, 2022	Minimum Lease Payments		Debt Repayments		Total
2022	$	1,238	$	—	$	1,238
2023	2,092		12,500		14,592
2024	—		37,500		37,500


Total minimum payments	3,330		50,000		53,330
Less: amount representing interest/unamortized debt discount	(243)		507		264
Present value of future payments	3,087		50,507		53,594
Less: current portion	(2,258)		—		(2,258)
Non-current portion	$	829	$	50,507	$	51,336

Organization (Details) - USD ($) $ in Thousands	1 Months Ended
Organization (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Subsidiary, Sale of Stock [Line Items]
Cash and cash equivalents		$ 269,806	$ 304,320	$ 159,224
Accumulated deficit		$ 297,890	$ 261,521
IPO \| Common Stock
Initial Public Offering
Sale of stock, consideration received on transaction	$ 172,400

- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References + Details

Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, $ in Millions	1 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2021 $ / shares shares
Subsidiary, Sale of Stock [Line Items]
Share price (in dollars per share) \| $ / shares	$ 25.00	$ 25.00
Payments for underwriting discount and commissions \| $	$ 13.2
Payments of stock issuance costs \| $	$ 2.9
Convertible preferred stock, shares, number of shares issued upon conversion (in shares) \| shares	29,912,264	29,912,264
Additional Paid-in Capital
Subsidiary, Sale of Stock [Line Items]
Conversion of redeemable convertible preferred stock to common stock upon initial public offering \| $	$ 329.5
Common Stock Warrants \| Series E, Redeemable Convertible Preferred Stock Warrants
Subsidiary, Sale of Stock [Line Items]
Issuance upon exercise of warrants (in shares) \| shares		62,454
Common Stock \| IPO
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares	6,556,000
Sale of stock, consideration received on transaction \| $	$ 172.4
Common Stock \| Over-Allotment Option
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares issued in transaction (in shares) \| shares	983,400

Fair Value Measurements - Narrative (Details)	Jun. 30, 2022
Level 3 \| Fair Value, Measurements, Recurring \| Valuation Technique, Discounted Cash Flow
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash flow discount	0.10

Fair Value Measurements - Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash and cash equivalents	$ 269,806	$ 304,320	$ 159,224
Fair Value, Measurements, Recurring
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash	3,810	13,621
Cash equivalents	265,996	290,699
Cash and cash equivalents	269,806	304,320
Loan facility derivative liability	1,570	1,496
Level 1 \| Fair Value, Measurements, Recurring
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash	3,810	13,621
Cash equivalents	265,996	290,699
Cash and cash equivalents	269,806	304,320
Loan facility derivative liability	0	0
Level 2 \| Fair Value, Measurements, Recurring
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash	0	0
Cash equivalents	0	0
Cash and cash equivalents	0	0
Loan facility derivative liability	0	0
Level 3 \| Fair Value, Measurements, Recurring
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Cash	0	0
Cash equivalents	0	0
Cash and cash equivalents	0	0
Loan facility derivative liability	$ 1,570	$ 1,496

Fair Value Measurements - Fair Value, Inputs, Level 3 - Fair Value, Measurements, Recurring (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning of the period	$ 1,533	$ 1,825	$ 1,496	$ 1,782
Issued	0	0	0	0
Change in fair value	37	(38)	74	5
End of the period	$ 1,570	$ 1,787	$ 1,570	$ 1,787

Inventory - Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Raw materials	$ 5,329	$ 6,740
Work-in-process	1,025	905
Finished goods	7,423	5,502
Total inventory	$ 13,777	$ 13,147

Intangible Assets (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Payments to acquire intangible assets	$ 2.5
Accumulated amortization		$ 0.9		$ 0.9		$ 0.8
Expected annual amortization expense						$ 0.3
Amortization expense		$ 0.1	$ 0.1	$ 0.1	$ 0.1

Loan Facility and Derivative Liability (Details)	1 Months Ended				6 Months Ended		12 Months Ended
Loan Facility and Derivative Liability (Details)	Sep. 30, 2021 USD ($)	Jan. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2019 USD ($) installment	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)
Line of Credit Facility [Line Items]
Gain (loss) on amendment of debt terms							$ 0
Loan Facility
Line of Credit Facility [Line Items]
Trailing twelve month revenue target					$ 200,000,000
Fee on first installment drawn					1,000,000
Fee if first two installments drawn					2,000,000
Fee if first three installments drawn					2,400,000
Fee if all four installments are drawn					3,000,000
Derivative liability, loan facility					$ 1,400,000
Loan Facility \| Line of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Loan facility, maximum borrowing capacity				$ 75,000,000
Number of installments \| installment				4
Covenant compliance, IPO capital raised in threshold amount	$ 50,000,000
Covenant compliance, IPO capital raised in threshold amount achieved, extended interest only period (in months)	12 months
Covenant compliance, IPO capital raised in threshold amount achieved, extended principal and interest only period (in months)	12 months
Covenant compliance, revenue forecast for commensurate period, percent						70.00%
Covenant compliance, revenue forecast amount, first two installments only						$ 15,000,000
Covenant compliance, revenue forecast amount, first three installments only						20,000,000
Covenant compliance, revenue forecast amount, all installments						25,000,000
Final payment fee, percentage					6.00%
Commitment fee percentage					0.25%
Early repayment fee first twelve month, percent					3.00%
Early repayment fee second twelve month period, percent					2.00%
Early repayment fee, twenty four months thereafter, percent					1.00%
Trailing twelve month revenue target					$ 200,000,000
Fee on first installment drawn					1,000,000
Fee if first two installments drawn					2,000,000
Fee if first three installments drawn					2,400,000
Fee if all four installments are drawn					3,000,000
Loan Facility, Tranche One \| Line of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Proceeds from long-term lines of credit				$ 25,000,000
Loan Facility, Tranche Two \| Line of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Proceeds from long-term lines of credit			$ 25,000,000
Facility interest rate at period end (percent)		9.37%
Facility term (in years)		60 months
Interest only period		24 months
Principal and interest period (in months)		36 months
Loan Facility, Tranche Two \| Line of Credit \| London Interbank Offered Rate (LIBOR) \| Line of Credit
Line of Credit Facility [Line Items]
Facility interest rate at period end (percent)		7.17%
Loan Facility, Tranche Three \| Line of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Current borrowing amount								$ 10,000,000
Trailing six months revenue target		$ 6,400,000				20,000,000
Interest only period		36 months
Principal and interest period (in months)		24 months
Loan Facility, Tranche Four \| Line of Credit \| Line of Credit
Line of Credit Facility [Line Items]
Current borrowing amount					$ 15,000,000	15,000,000
Trailing six months revenue target						$ 25,000,000
Extended interest only period (in months)					12 months
Extended principal and interest period (in months)					24 months

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Class of Warrant or Right [Line Items]
Unrecognized stock-based compensation expense	$ 2,676	$ 725	$ 1,375	$ 4,228
Employee stock purchase plan
Class of Warrant or Right [Line Items]
Shares available for grant (in shares)	0.8		0.8
Unrecognized compensation cost	$ 700		$ 700
Average vesting period for unrecognized compensation cost			6 months
Common stock options
Class of Warrant or Right [Line Items]
Options outstanding and exercisable, aggregate intrinsic value	82,300		$ 82,300		$ 64,300
Options outstanding, aggregate intrinsic value	$ 147,100		147,100		$ 125,700
Options exercised in the period, intrinsic value			21,700	$ 3,400
Unrecognized stock-based compensation expense			$ 11,400
Common stock options \| 2021 Equity Incentive Award Plan
Class of Warrant or Right [Line Items]
Shares available for grant (in shares)	4.5		4.5
Restricted stock units
Class of Warrant or Right [Line Items]
Unrecognized stock-based compensation expense			$ 17,800

Stock-Based Compensation - Summary of Stock Option Activity (Details) - Common stock options - $ / shares	6 Months Ended
	Jun. 30, 2022
Number of Shares
Balance at the beginning of the period (in shares)	6,365,000
Granted (in shares)	254,000
Exercised (in shares)	(802,000)
Forfeited (in shares)	(151,000)
Balance at the end of the period (in shares)	5,666,000
Vested and expected to vest (in shares)	5,666,000
Exercisable (in shares)	2,933,000
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 5.34
Granted (in dollars per share)	35.58
Exercised (in dollars per share)	3.57
Forfeited (in dollars per share)	7.09
Balance at the end of the period (in dollars per share)	6.90
Vested and expected to vest (in dollars per share)	6.90
Exercisable (in dollars per share)	$ 4.63

Stock-Based Compensation - Fair Value Assumptions (Details) - Common stock options - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangements
Expected life (years)	5 years 9 months 18 days	6 years	5 years 10 months 24 days	6 years
Expected volatility	56.00%	52.00%	55.00%	49.00%
Risk-free interest rate	2.90%	1.10%	2.50%	1.10%
Expected dividend rate	0.00%	0.00%	0.00%	0.00%
Weighted-average fair value (in dollars per share)	$ 20.07	$ 3.59	$ 19.15	$ 3.14
Employee stock purchase plan
Share-based Compensation Arrangements
Expected life (years)	9 months 18 days
Expected volatility	57.00%
Risk-free interest rate	1.80%
Expected dividend rate	0.00%
Weighted-average fair value (in dollars per share)	$ 12.25

Stock-Based Compensation - Restricted Stock Unit (Details) - Restricted stock units shares in Thousands	6 Months Ended
	Jun. 30, 2022 $ / shares shares
Restricted Stock Units
Outstanding, beginning of period (in shares) \| shares	35
Award (in shares) \| shares	538
Forfeited (in shares) \| shares	(14)
Outstanding, end of period (in shares) \| shares	559
Weighted-Average Fair Value
Outstanding, beginning of period (in dollars per share) \| $ / shares	$ 34.78
Awarded (in dollars per share) \| $ / shares	34.14
Forfeited (in dollars per shares) \| $ / shares	31.76
Outstanding, endof period (in dollars per share) \| $ / shares	$ 34.22

Stock-Based Compensation - Stock-based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangements
Total stock-based compensation	$ 2,676	$ 725	$ 1,375	$ 4,228
Cost of sales
Share-based Compensation Arrangements
Total stock-based compensation	252	51	74	375
Research and development
Share-based Compensation Arrangements
Total stock-based compensation	553	155	307	853
Sales, general and administrative
Share-based Compensation Arrangements
Total stock-based compensation	$ 1,871	$ 519	$ 994	$ 3,000

Net Loss Per Share - Narrative (Details)	Sep. 30, 2021 shares
Earnings Per Share [Abstract]
Convertible preferred stock, shares, number of shares issued upon conversion (in shares)	29,912,264

Net Loss Per Share - Net loss per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (19,184)	$ (17,185)	$ (14,580)	$ (12,822)	$ (36,369)	$ (27,402)
Weighted-average common stock outstanding, basic (in shares)	44,324,000		5,597,000		44,091,000	5,216,000
Weighted-average common stock outstanding, diluted (in shares)	44,324,000		5,597,000		44,091,000	5,216,000
Net loss per share, basic (in dollars per share)	$ (0.43)		$ (2.60)		$ (0.82)	$ (5.25)
Net loss per share, diluted (in dollars per share)	$ (0.43)		$ (2.60)		$ (0.82)	$ (5.25)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

Net Loss Per Share - Potentially Dilutive Securities (Details) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	6,286	36,543
Redeemable convertible preferred stock outstanding
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	29,850
Redeemable convertible preferred stock warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	0	72
Common stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	5,666	6,621
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	559	0
Employee stock purchase plan
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares)	61	0

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Revenue (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 16,691	$ 8,476	$ 30,888	$ 15,668
U.S.
Disaggregation of Revenue [Line Items]
Revenue	14,806	6,560	27,366	12,813
Outside of U.S.
Disaggregation of Revenue [Line Items]
Revenue	1,885	1,916	3,522	2,855
System sales and rentals \| U.S.
Disaggregation of Revenue [Line Items]
Revenue	8,516	4,770	16,270	9,330
System sales and rentals \| Outside of U.S.
Disaggregation of Revenue [Line Items]
Revenue	869	973	1,610	1,244
Handpieces and other consumables \| U.S.
Disaggregation of Revenue [Line Items]
Revenue	5,723	1,653	10,167	3,274
Handpieces and other consumables \| Outside of U.S.
Disaggregation of Revenue [Line Items]
Revenue	832	890	1,578	1,493
Service \| U.S.
Disaggregation of Revenue [Line Items]
Revenue	567	137	929	209
Service \| Outside of U.S.
Disaggregation of Revenue [Line Items]
Revenue	$ 184	$ 53	$ 334	$ 118

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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-Subparagraph (SAB Topic 11.L)
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+ Details

Segment, Geographical, and Customer Concentration (Details)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Revenue Benchmark \| Geographic Concentration Risk \| U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue by significant geographical locations outside the United States, percent	89.00%	77.00%	89.00%	82.00%
Revenue Benchmark \| Geographic Concentration Risk \| Outside of U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue by significant geographical locations outside the United States, percent	11.00%	23.00%	11.00%	18.00%
Customer 1 \| Accounts Receivable \| Customer Concentration Risk
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue by significant geographical locations outside the United States, percent			10.00%		11.00%

Commitments and Contingencies - Narrative (Details) $ in Thousands		3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($) building ft² renewalOption	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Rent expense		$ 700	$ 700	$ 1,400	$ 1,300
Other Commitments [Line Items]
Operating lease, liability		$ 3,087		$ 3,087
Building
Other Commitments [Line Items]
Number of buildings \| building	2
Number of square feet \| ft²	158,221
Number of renewal options \| renewalOption	2
Annual base rent, year one	$ 4,300
Annual base rent, year ten	5,500
Operating lease, liability	49,200
Receivable allowance for tenant improvements	$ 7,900

Commitments and Contingencies - Future Minimum Lease Payments and Long-Term Debt Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Minimum Lease Payments
2022	$ 1,238
2023	2,092
2024	0
Total minimum payments	3,330
Less: amount representing interest/unamortized debt discount	(243)
Present value of future payments	3,087
Less: current portion	(2,258)	$ (2,105)
Non-current portion	829	1,991
Debt Repayments
2022	0
2023	12,500
2024	37,500
Total minimum payments	50,000
Less: amount representing interest/unamortized debt discount	507
Present value of future payments	50,507
Less: current portion	0
Non-current portion	50,507	$ 50,004
Total
2022	1,238
2023	14,592
2024	37,500
Total minimum payments	53,330
Less: amount representing interest/unamortized debt discount	264
Present value of future payments	53,594
Less: current portion	(2,258)
Non-current portion	$ 51,336