0001493152-23-040354 | 10-Q | XBRL Viewer

Inventories (Tables)

9 Months Ended

Sep. 30, 2023

Inventories consist of the following (in thousands):

Schedule of Inventories

	September 30, 2023			December 31, 2022
Raw materials	$	6,490		$	6,556
Work in process		542			530
Finished goods		1,633			2,697
Reserve for excess and obsolescence		(1,877	)		(1,907	)
Total inventory	$	6,788		$	7,876

Accrued Liabilities

9 Months Ended

Sep. 30, 2023

Payables and Accruals [Abstract]

Accrued Liabilities

8. Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

Schedule of Accrued Liabilities

	September 30, 2023			December 31, 2022
Accrued salaries, bonus, and benefits	$	1,314		$	1,381
Accrued licenses and maintenance fees		484			484
Accrued warranties		111			163
Accrued professional services		173			129
Deferred contract obligation		1,045			1,045
Other		76			155
Total accrued liabilities		3,203			3,357
Less: Long term accrued liabilities		(43	)		(51	)
Total current accrued liabilities	$	3,160		$	3,306

Certain prior year amounts have been reclassified to conform to the 2023 presentation.

Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Gross property and equipment	$ 7,182	$ 7,289
Less: Accumulated depreciation	(3,739)	(3,458)
Net property and equipment	3,443	3,831
Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	4,271	4,393
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment	2,911	2,692
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Gross property and equipment		$ 204

Leases

9 Months Ended

Sep. 30, 2023

Leases

Leases

7. Leases

On March 1, 2021, the Company entered into an office lease agreement (the “Lease”) with Globe Building Company (the “Landlord”), under which the Company leases executive office space and manufacturing facilities of approximately 43,100 square feet of rentable space located at 710 N. Tucker Boulevard, St. Louis, Missouri (the “Premises”) that serves as the Company’s principal executive and administrative offices and manufacturing facility. Lease payments commenced on January 1, 2022, and the lease has a term of ten years, with two renewal options of five years each. The minimum annual rent under the terms of the Lease ranges from approximately $0.8 million in 2022 to $1.0 million in 2031.

As of September 30, 2023, the weighted average discount rate for operating leases was 9% and the weighted average remaining lease term for operating lease term is 8.24 years.

The following table represents lease costs and other lease information (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Operating lease cost	$	227	$	227	$	681	$	678
Short-term lease cost		4		4		13		24
Total net lease cost	$	231	$	231	$	694	$	702

Cash paid within operating cash flows	$	255	$	232	$	741	$	886

Variable lease costs consist primarily of taxes, insurance, and common area or other maintenance costs for our leased facilities and equipment which are paid based on actual costs incurred.

Future minimum payments for operating leases with initial or remaining terms of one year or more as of September 30, 2023, were as follows (in thousands):

	September 30, 2023
2023	$	220
2024		898
2025		919
2026		935
2027		956
2028 and thereafter		4,030
Total lease payments		7,958
Less: Interest		(2,372	)
Present value of lease liabilities	$	5,586

Description of Business	9 Months Ended
Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	*1. Description of Business* Stereotaxis designs, manufactures and markets robotic systems, instruments and information systems for the interventional laboratory. Our proprietary robotic technology, Robotic Magnetic Navigation, fundamentally transforms endovascular interventions using precise computer-controlled magnetic fields to directly control the tip of flexible interventional catheters or devices. Direct control of the tip of an interventional device, in contrast to all manual hand-held devices that are controlled from their handle, can improve the precision, stability, reach and safety of these devices during procedures. Our primary clinical focus has been electrophysiology, specifically cardiac ablation procedures for the treatment of arrhythmias. Cardiac ablation has become a well-accepted therapy for arrhythmias and a multi-billion-dollar medical device market with expectations for substantial long-term growth. We have shared our aspiration and a product strategy to expand the clinical focus of our technology to several additional endovascular indications including coronary, neuro, and peripheral interventions. There is substantial real-world evidence and clinical literature for Robotic Magnetic Navigation in electrophysiology. Hundreds of electrophysiologists at over one hundred hospitals globally have treated over 100,000 arrhythmia patients with our robotic technology. Clinical use of our technology has been documented in over 400 clinical publications. Robotic Magnetic Navigation is designed to enable physicians to complete more complex interventional procedures with greater success and safety by providing image-guided delivery of catheters through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied computer-controlled magnetic fields that govern the motion of the working tip of the catheter, resulting in improved navigation. The more flexible atraumatic design of catheters driven using magnetic fields may reduce the risk of patient harm and other adverse events. Performing the procedure from a control cockpit enables physicians to complete procedures in a safe location protected from x-ray exposure, with greater ergonomics, and improved efficiency. We believe these benefits can be applicable in other endovascular indications where navigation through complex vasculature is often challenging or unsuccessful and generates significant x-ray exposure, and we are investing in research and development in these areas. Our primary products include the Genesis RMN System, the Odyssey Solution, and other related devices. We also offer our customers the Stereotaxis Imaging Model S x-ray System and other accessory devices. The Genesis RMN System is designed to enable physicians to complete more complex interventional procedures by providing image-guided delivery of catheters through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied magnetic fields that govern the motion of the working tip of the catheter, resulting in improved navigation, efficient procedures, and reduced x-ray exposure. The Odyssey Solution consolidates lab information onto one large integrated display, enabling physicians to view and control all the key information in the operating room. This is designed to improve lab layout and procedure efficiency. The system also features a remote viewing and recording capability called Odyssey Cinema, which is an innovative solution that delivers synchronized content for optimized workflow, advanced care, and improved productivity. This tool includes an archiving capability that allows clinicians to store and replay entire procedures or segments of procedures. This information can be accessed from locations throughout the hospital local area network and over the global Odyssey Network providing physicians with a tool for clinical collaboration, remote consultation, and training. The Stereotaxis Imaging Model S provides an integrated complete solution for a robotic interventional operating room. It is a single-plane, full-power x-ray system and includes the c-arm, powered table, motorized boom, and large high-definition monitors. Stereotaxis Imaging Model S incorporates modern fluoroscopy technology to support high quality imaging while minimizing radiation exposure for patients and physicians. The combination of RMN Systems with Stereotaxis Imaging Model S is designed to reduce the cost of acquisition, the ongoing cost of ownership, and the complexity of installation of a robotic electrophysiology practice. We promote our full suite of products in a typical hospital implementation, subject to regulatory approvals or clearances. This implementation requires a hospital to agree to an upfront capital payment and recurring payments. The upfront capital payment typically includes equipment and installation charges. The recurring payments typically include disposable costs for each procedure, equipment service costs beyond the warranty period, and ongoing software updates. In hospitals where our full suite of products has not been implemented, equipment upgrade or expansion can be implemented upon purchasing of the necessary upgrade or expansion. We have received regulatory clearances and registration necessary for us to market the Genesis RMN System in the U.S. and Europe, and we are in the process of obtaining necessary registrations for extending our markets in other countries. Our prior generation robotic magnetic navigation system, the Niobe System, the Odyssey Solution, Cardiodrive, and various disposable interventional devices have received regulatory clearance in the U.S., Europe, Canada, China, Japan and various other countries. We have received the regulatory clearance, licensing and/or CE Mark approvals that allow us to market the Vdrive and Vdrive Duo Systems with the V-CAS, V-Loop and V-Sono devices in the U.S., Canada and Europe. The Stereotaxis Imaging Model S x-ray System is CE marked and cleared by the FDA. We are pursuing regulatory approvals for the Stereotaxis MAGiC catheter, a robotically-navigated magnetic ablation catheter designed to perform minimally invasive cardiac ablation procedures, in various global geographies. Approval processes can be lengthy and uncertain, submissions may require revised or additional non-clinical and clinical data, and regulatory applications could be denied. We have strategic relationships with technology leaders and innovators in the global interventional market. Through these strategic relationships we provide compatibility between our robotic magnetic navigation system, x-ray systems, and digital imaging and 3D catheter location sensing technology, as well as disposable interventional devices. The maintenance of these strategic relationships, or the establishment of equivalent alternatives, is critical to our commercialization efforts. There are no guarantees that any existing strategic relationships will continue, and efforts are ongoing to ensure the availability of integrated systems and devices and/or equivalent alternatives. We cannot provide assurance as to the timeline of the ongoing availability of such compatible systems or our ability to obtain equivalent alternatives on competitive terms or at all.

Description of Business

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business

1. Description of Business

Stereotaxis designs, manufactures and markets robotic systems, instruments and information systems for the interventional laboratory. Our proprietary robotic technology, Robotic Magnetic Navigation, fundamentally transforms endovascular interventions using precise computer-controlled magnetic fields to directly control the tip of flexible interventional catheters or devices. Direct control of the tip of an interventional device, in contrast to all manual hand-held devices that are controlled from their handle, can improve the precision, stability, reach and safety of these devices during procedures.

Our primary clinical focus has been electrophysiology, specifically cardiac ablation procedures for the treatment of arrhythmias. Cardiac ablation has become a well-accepted therapy for arrhythmias and a multi-billion-dollar medical device market with expectations for substantial long-term growth. We have shared our aspiration and a product strategy to expand the clinical focus of our technology to several additional endovascular indications including coronary, neuro, and peripheral interventions.

There is substantial real-world evidence and clinical literature for Robotic Magnetic Navigation in electrophysiology. Hundreds of electrophysiologists at over one hundred hospitals globally have treated over 100,000 arrhythmia patients with our robotic technology. Clinical use of our technology has been documented in over 400 clinical publications. Robotic Magnetic Navigation is designed to enable physicians to complete more complex interventional procedures with greater success and safety by providing image-guided delivery of catheters through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied computer-controlled magnetic fields that govern the motion of the working tip of the catheter, resulting in improved navigation. The more flexible atraumatic design of catheters driven using magnetic fields may reduce the risk of patient harm and other adverse events. Performing the procedure from a control cockpit enables physicians to complete procedures in a safe location protected from x-ray exposure, with greater ergonomics, and improved efficiency. We believe these benefits can be applicable in other endovascular indications where navigation through complex vasculature is often challenging or unsuccessful and generates significant x-ray exposure, and we are investing in research and development in these areas.

Our primary products include the Genesis RMN System, the Odyssey Solution, and other related devices. We also offer our customers the Stereotaxis Imaging Model S x-ray System and other accessory devices.

The Genesis RMN System is designed to enable physicians to complete more complex interventional procedures by providing image-guided delivery of catheters through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied magnetic fields that govern the motion of the working tip of the catheter, resulting in improved navigation, efficient procedures, and reduced x-ray exposure.

The Odyssey Solution consolidates lab information onto one large integrated display, enabling physicians to view and control all the key information in the operating room. This is designed to improve lab layout and procedure efficiency. The system also features a remote viewing and recording capability called Odyssey Cinema, which is an innovative solution that delivers synchronized content for optimized workflow, advanced care, and improved productivity. This tool includes an archiving capability that allows clinicians to store and replay entire procedures or segments of procedures. This information can be accessed from locations throughout the hospital local area network and over the global Odyssey Network providing physicians with a tool for clinical collaboration, remote consultation, and training.

The Stereotaxis Imaging Model S provides an integrated complete solution for a robotic interventional operating room. It is a single-plane, full-power x-ray system and includes the c-arm, powered table, motorized boom, and large high-definition monitors. Stereotaxis Imaging Model S incorporates modern fluoroscopy technology to support high quality imaging while minimizing radiation exposure for patients and physicians. The combination of RMN Systems with Stereotaxis Imaging Model S is designed to reduce the cost of acquisition, the ongoing cost of ownership, and the complexity of installation of a robotic electrophysiology practice.

We promote our full suite of products in a typical hospital implementation, subject to regulatory approvals or clearances. This implementation requires a hospital to agree to an upfront capital payment and recurring payments. The upfront capital payment typically includes equipment and installation charges. The recurring payments typically include disposable costs for each procedure, equipment service costs beyond the warranty period, and ongoing software updates. In hospitals where our full suite of products has not been implemented, equipment upgrade or expansion can be implemented upon purchasing of the necessary upgrade or expansion.

We have received regulatory clearances and registration necessary for us to market the Genesis RMN System in the U.S. and Europe, and we are in the process of obtaining necessary registrations for extending our markets in other countries. Our prior generation robotic magnetic navigation system, the Niobe System, the Odyssey Solution, Cardiodrive, and various disposable interventional devices have received regulatory clearance in the U.S., Europe, Canada, China, Japan and various other countries. We have received the regulatory clearance, licensing and/or CE Mark approvals that allow us to market the Vdrive and Vdrive Duo Systems with the V-CAS, V-Loop and V-Sono devices in the U.S., Canada and Europe. The Stereotaxis Imaging Model S x-ray System is CE marked and cleared by the FDA. We are pursuing regulatory approvals for the Stereotaxis MAGiC catheter, a robotically-navigated magnetic ablation catheter designed to perform minimally invasive cardiac ablation procedures, in various global geographies. Approval processes can be lengthy and uncertain, submissions may require revised or additional non-clinical and clinical data, and regulatory applications could be denied.

We have strategic relationships with technology leaders and innovators in the global interventional market. Through these strategic relationships we provide compatibility between our robotic magnetic navigation system, x-ray systems, and digital imaging and 3D catheter location sensing technology, as well as disposable interventional devices. The maintenance of these strategic relationships, or the establishment of equivalent alternatives, is critical to our commercialization efforts. There are no guarantees that any existing strategic relationships will continue, and efforts are ongoing to ensure the availability of integrated systems and devices and/or equivalent alternatives. We cannot provide assurance as to the timeline of the ongoing availability of such compatible systems or our ability to obtain equivalent alternatives on competitive terms or at all.

Commitments and Contingencies	9 Months Ended
Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	*11. Commitments and Contingencies* The Company at times becomes a party to claims in the ordinary course of business. Management believes that the ultimate resolution of pending or threatened proceedings will not have a material effect on the financial position, results of operations or liquidity of the Company. In April 2021, the Company entered into a letter of credit pursuant to the Lease agreement totaling approximately $1.8 million to be delivered in four equal installments of which the first was delivered in April 2021, the second was delivered in July 2021, the third was delivered in October 2021, and the fourth was delivered in January 2022. The amount available under this letter of credit automatically reduces by one fortieth at the end of each month during the lease term.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

11. Commitments and Contingencies

The Company at times becomes a party to claims in the ordinary course of business. Management believes that the ultimate resolution of pending or threatened proceedings will not have a material effect on the financial position, results of operations or liquidity of the Company.

In April 2021, the Company entered into a letter of credit pursuant to the Lease agreement totaling approximately $1.8 million to be delivered in four equal installments of which the first was delivered in April 2021, the second was delivered in July 2021, the third was delivered in October 2021, and the fourth was delivered in January 2022. The amount available under this letter of credit automatically reduces by one fortieth at the end of each month during the lease term.

Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Mar. 10, 2023	Dec. 31, 2022
Product Information [Line Items]
Minimum cash balance percentage			6.00%
Restricted cash	$ 900			$ 1,300
Short-term investments				19,844
Remaining performance obligations	12,100
Contract with customer liability revenue recognized	5,700	$ 5,600
Capitalized contract cost	$ 100			$ 200
Expected dividend rate	0.00%
Expected volatility	76.00%
Expected term	6 years 3 months
Weighted average exercise price	$ 3.93			$ 4.21
Series A Convertible Preferred Stock [Member]
Product Information [Line Items]
Potential common shares excluded from diluted earnings per share	48,909,568
Stock Options and Stock Appreciation Rights [Member]
Product Information [Line Items]
Potential common shares excluded from diluted earnings per share	3,769,675
Weighted average exercise price	$ 3.93
Restricted Stock [Member]
Product Information [Line Items]
Potential common shares excluded from diluted earnings per share	1,502,131
Revenue From System Delivery and Installation [Member] \| Product Concentration Risk [Member]
Product Information [Line Items]
Concentration risk percentage	39.00%	22.00%
Disposable revenue [Member] \| Product Concentration Risk [Member]
Product Information [Line Items]
Concentration risk percentage	21.00%	29.00%
Royalty Revenue [Member] \| Product Concentration Risk [Member]
Product Information [Line Items]
Concentration risk percentage	1.00%	8.00%
Other recurring Revenue [Member] \| Product Concentration Risk [Member]
Product Information [Line Items]
Concentration risk percentage	40.00%	41.00%
Systems [Member]
Product Information [Line Items]
Warranty costs	$ 100	$ 100
Other Current Assets [Member] \| Maximum [Member]
Product Information [Line Items]
Accrued interest receivable on investments	$ 100			$ 100

Prepaid Expenses and Other Assets

9 Months Ended

Sep. 30, 2023

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Assets

5. Prepaid Expenses and Other Assets

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

	September 30, 2023			December 31, 2022
Prepaid expenses	$	281		$	605
Prepaid commissions		125			187
Deposits		475			669
Other assets		109			72
Total prepaid expenses and other assets		990			1,533
Less: Noncurrent prepaid expenses and other assets		(135	)		(208	)
Total current prepaid expenses and other assets	$	855		$	1,325

Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net loss	$ (5,369)	$ (4,917)	$ (15,673)	$ (14,138)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation			457	298
Non-cash lease expense			23	90
Stock-based compensation			7,987	7,906
Accretion and short-term investment discount			(287)
Changes in operating assets and liabilities:
Accounts receivable			(156)	329
Inventories			1,088	(3,280)
Prepaid expenses and other current assets			470	1,071
Other assets			73	45
Accounts payable			270	687
Accrued liabilities			(146)	(19)
Deferred revenue			(798)	1,199
Other liabilities			(8)	(51)
Net cash used in operating activities			(6,700)	(5,863)
Cash flows from investing activities
Purchase of property and equipment			(366)	(2,009)
Proceeds from maturity of short-term investments			20,131
Net cash provided by (used in) investing activities			19,765	(2,009)
Cash flows from financing activities
Proceeds from issuance of stock, net of issuance costs			55	159
Net cash provided by financing activities			55	159
Net increase (decrease) in cash, cash equivalents, and restricted cash			13,120	(7,713)
Cash, cash equivalents, and restricted cash at beginning of period			9,855	40,144
Cash, cash equivalents, and restricted cash at end of period	22,975	32,431	22,975	32,431
Supplemental disclosure of cash flow information:
Purchase of property and equipment included in accounts payable				163
Reconciliation of cash, cash equivalents, and restricted cash to balance sheet as of September 30th:
Cash and cash equivalents	22,100	30,938	22,100	30,938
Restricted cash - current	525	618	525	618
Restricted cash	350	875	350	875
Total cash, cash equivalents, and restricted cash	$ 22,975	$ 32,431	$ 22,975	$ 32,431

Property and Equipment (Tables)

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

Property and Equipment consist of the following (in thousands):

Schedule of Property and Equipment

	September 30, 2023			December 31, 2022
Equipment	$	4,271		$	4,393
Leasehold improvements		2,911			2,692
Construction in process		-			204
Gross property and equipment		7,182			7,289
Less: Accumulated depreciation		(3,739	)		(3,458	)
Net property and equipment	$	3,443		$	3,831

Convertible Preferred Stock and Stockholders’ Equity (Details Narrative) - USD ($)			1 Months Ended	9 Months Ended
	Feb. 23, 2021	Aug. 07, 2019	Sep. 30, 2016	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Subsidiary, Sale of Stock [Line Items]
Common stock, voting rights				The holders of common stock are entitled to one vote for each share held
Payments of dividends common stock				$ 0
Preferred stock, par value				$ 0.001		$ 0.001
Stock-based compensation expense				$ 7,987,000	$ 7,906,000
Unrecognized stock-based compensation expense				$ 4,300,000
Share based payment arrangement, cost not yet recognized, period				4 years
2012 Stock Incentive Plan [Member]
Subsidiary, Sale of Stock [Line Items]
Stock plan expiration date				May 19, 2022
Stock Award Plans [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock, shares reserved for future grants				2,645,914
PSU Agreement [Member] \| Mr. Fischel [Member]
Subsidiary, Sale of Stock [Line Items]
Performance award term	10 years
Number of shares granted	13,000,000
Maximum market capitalization milestone, amount	$ 1,000,000,000.0
Increase in market capitalization milestone, amount	500,000,000
Stock-based compensation expense				$ 5,300,000	5,300,000
Unrecognized stock-based compensation expense				$ 38,800,000	$ 45,900,000
PSU Agreement [Member] \| Mr. Fischel [Member] \| Maximum [Member]
Subsidiary, Sale of Stock [Line Items]
Maximum market capitalization milestone, amount	$ 5,500,000,000
Series A Convertible Preferred Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares sold			24,000
Preferred stock, par value			$ 0.001
Preferred stock, stated value			1,000
Redemption price per share			$ 0.65
Common stock issuable from warrants			36,923,078
Preferred stock dividend rate			6.00%
Preferred stock redemption, triggering event, percent of common stock sold threshold			50.00%
Private Placement [Member] \| Series B Convertible Preferred Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Sale of stock, number of shares sold		5,610,121
Preferred stock, par value		$ 0.001
Preferred stock, convertible, conversion price		$ 2.05

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited financial statements of Stereotaxis, Inc. have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and the instructions to Form 10-Q. Accordingly, they do not include all the disclosures required by GAAP for complete financial statements. In the opinion of management, they include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods presented. Operating results for the nine-month period ended September 30, 2023, are not necessarily indicative of the results that may be expected for the year ending December 31, 2023, or for future operating periods.

These interim financial statements and the related notes should be read in conjunction with the annual financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022, as filed with the Securities and Exchange Commission (SEC) on March 9, 2023.

Risks and Uncertainties

Future results of operations could be materially adversely impacted by macroeconomic and geopolitical factors. The Company continues to experience difficulties with periodic worldwide supply chain disruptions, including shortages and inflationary pressures, and logistics delays which make it difficult for us to source parts and ship our products. We have generally been able to conduct normal business activities albeit in a more deliberate manner than prior to the pandemic, including taking action to increase inventory levels, but we cannot guarantee that they will not be impacted more severely in the future. Our suppliers and contract manufacturers have experienced, and may continue to experience, similar difficulties. If our manufacturing operations or supply chains are materially interrupted, it may not be possible for us to timely manufacture or service our products at required levels, or at all. Changes in economic conditions and supply chain constraints could lead to higher inflation than previously experienced or expected, which could, in turn, lead to an increase in costs. We may be unable to raise the prices of our products sufficiently to keep up with the rate of inflation. A material reduction or interruption in any of our manufacturing processes or a substantial increase in costs would have a material adverse effect on our business, operating results, and financial condition.

Many of our hospital customers, for whom the purchase of our system involves a significant capital purchase which may be part of a larger construction project at the customer site (typically the construction of a new building), may themselves be under economic pressures. Hospitals continue to experience challenges with staffing and cost pressures as supply chain constraints and inflation drive up operating costs. This may cause delays or cancellations of current purchase orders and other commitments and may exacerbate the long and variable sales and installation cycles for our robotic magnetic navigation systems. Our hospital customers have also experienced challenges in sourcing supplies, such as catheters, needed to perform procedures. Such shortages have, and may continue to, put pressure on procedures and our disposable revenue.

Any disruption to the capital markets could negatively impact our ability to raise capital. If the capital markets are disrupted for an extended period of time and we need to raise additional capital, such capital may not be available on acceptable terms, or at all. Disruptions to the capital markets and other financing sources could also negatively impact our hospital customers’ ability to raise capital or otherwise obtain financing to fund their operations and capital projects. Such could result in delayed spending on current projects, a longer sales cycle for new projects where a large capital commitment is required, and decreased demand for our disposable products as well as an increased risk of customer defaults or delays in payments for our systems installation, service contracts and disposable products.

In addition to the aforementioned macroeconomic factors, the COVID-19 pandemic or similar occurrences may continue to negatively affect demand for both our systems and our disposable products. In the past, we have experienced business disruptions, including travel restrictions on us and our third-party distributors, which negatively affected our complex sales, marketing, installation, distribution and service network relating to our products and services. We also experienced reductions in demand for our disposable products as our healthcare customers (physicians and hospitals) re-prioritized the treatment of patients and diverted resources away from non-coronavirus areas, leading to the performance of fewer procedures in which our disposable products are used. Significant decreases to our capital or recurring revenues could have a material adverse effect on our business, operating results, and financial condition. While we cannot reliably estimate the ultimate duration of the impact or the severity of ongoing periodic resurgences of pandemic-related issues, we continue to anticipate periodic disruptions to our manufacturing operations, supply chains, procedures volumes, service activities, and capital system orders and placements, any of which could have a material adverse effect on our business, financial condition, results of operations, or cash flows.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentration of credit risk consist of cash, cash equivalents and marketable securities. Our investments may include, at any time, a diversified portfolio of cash equivalents and short-term and long-term investments in a variety of high-quality securities, including money market funds, U.S. treasury and U.S. government agency securities, corporate notes and bonds, commercial paper, non-U.S. government agency securities, and municipal notes. The Company’s exposure to any individual corporate entity is limited by policy. Deposits may exceed federally insured limits, and the Company is exposed to credit risk on deposits in the event of default by the financial institutions to the extent account balances exceed the amount insured by the Federal Deposit Insurance Corporation (FDIC). The Company is closely monitoring ongoing events involving limited liquidity, defaults, non-performance or other adverse developments that affect financial institutions or other companies in the financial services industry or the financial services industry generally, including Silicon Valley Bank. On March 10, 2023, Silicon Valley Bank (“SVB”), where the Company maintained accounts with a cash balance of less than 6% of the Company’s total cash, cash equivalents and marketable securities, was closed by the California Department of Financial Protection and Innovation and the FDIC was appointed as receiver. On March 12, 2023, the U.S. Department of the Treasury, Federal Reserve Board, and FDIC released a joint statement announcing that the FDIC would complete its resolution of SVB in a manner that fully protected all depositors at SVB and that depositors would have access to all of their money starting March 13, 2023. On March 26, 2023, it was announced that First-Citizens Bank & Trust Company would assume all of SVB’s deposits and loans as of March 27, 2023. During the periods presented, the Company has not experienced any losses on its deposits of cash, cash equivalents or marketable securities.

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, money market instruments, and other highly liquid investments with original maturities of three months or less.

Restricted Cash

Restricted cash primarily consists of cash that the Company is obligated to maintain in accordance with contractual obligations. The Company’s restricted cash was $0.9 million and $1.3 million as of September 30, 2023, and December 31, 2022, respectively.

Investments

Our investments may include, at any time, a diversified portfolio of cash equivalents and short-and long-term investments in a variety of high-quality securities, including money market funds, U.S. treasury and U.S. government agency securities, corporate notes and bonds, commercial paper, non-U.S. government agency securities, and municipal notes. As of September 30, 2023, the Company had no short-term investments.

Amortized cost of U.S. treasury securities and marketable debt securities are based on the Company’s purchase price adjusted for accrual of discount, or amortization of premium, and recognition of impairment charges, if any. The amortized cost of securities the Company purchases at a discount or premium will equal the face or par value at maturity or the call date, if applicable. Stated interest on investments is reported as income when earned and is adjusted for amortization or accretion of any premium or discount. Accrued interest receivable on investments, included in other current assets was less than $0.1 million as of September 30, 2023 and December 31, 2022.

Effective January 1, 2023, the Company reports held to maturity investments net of an allowance for expected credit losses in accordance with Accounting Standards Codification Topic 326, Financial Instruments – Credit Losses (“ASC 326”). The adoption of ASC 326 had no material impact on the Company’s financial results for any prior periods, therefore no cumulative adjustment to beginning retained earnings was recorded. The Company segments its portfolio based on the underlying risk profiles of the securities and has a zero-loss expectation for U.S. treasury and U.S. government agency securities. The Company regularly reviews the securities using the probability of default method and analyzes the unrealized loss positions and evaluates the current expected credit loss by considering factors such as credit ratings, issuer-specific factors, current economic conditions, and reasonable and supportable forecasts. The Company did not have any material expected credit losses on investments or material expected credit losses on accrued interest related to investments during the nine months ended September 30, 2023, or year ended December 31, 2022.

Fair Value Measurements

Financial instruments consist of cash and cash equivalents, restricted cash, investments, accounts receivable, and accounts payable.

The Company measures certain financial assets and liabilities at fair value on a recurring basis. General accounting principles for fair value measurement establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). The three levels of the fair value hierarchy are described below:

Level 1:		Values are based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

Level 2:		Values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or other model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3:		Values are generated from model-based techniques that use significant assumptions not observable in the market.

As of September 30, 2023, financial assets classified as Level 2 consisted of money market funds. As of December 31, 2022, financial assets classified as Level 2 consisted of money market funds, U.S. treasury securities and corporate debt securities. The Company reviews trading activity and pricing for these investments as of the measurement date. When sufficient quoted pricing for identical securities is not available, the Company uses market pricing and other observable market inputs for similar securities. These inputs either represent quoted prices for similar assets in active markets or have been derived from observable market data. This approach results in the Level 2 classification of these securities within the fair value hierarchy.

Accounts Receivable, Contract Assets, and Allowance for Credit Losses

Accounts receivable primarily include amounts due from hospitals and distributors for acquisition of magnetic systems, associated disposable device sales and service contracts, net of allowances for expected credit losses. Credit is granted on a limited basis, with balances due generally within 30 days of billing. Contract assets primarily represent the difference between the revenue that was earned but not billed on service contracts and revenue from system contracts that was recognized based on the relative selling price of the related performance obligations and the contractual billing terms in the arrangements. Effective January 1, 2023, the Company reports accounts receivable and contract assets net of an allowance for expected credit losses in accordance with Accounting Standards Codification Topic 326, Financial Instruments – Credit Losses (“ASC 326”). The adoption of ASC 326 had no material impact on the Company’s financial results for any prior periods, therefore no cumulative adjustment to beginning retained earnings was recorded. The provision for credit loss is based upon management’s assessment of historical and expected net collections considering business and economic conditions and other collection indicators. We assess collectability by reviewing the accounts receivable aging schedule on an aggregated basis where similar characteristics exist and on an individual basis when we identify specific customers with known disputes or collectability issues. Amounts deemed uncollectible are recorded as an allowance for expected credit losses.

Revenue and Costs of Revenue

The Company accounts for revenue in accordance with Accounting Standards Codification Topic 606 (“ASC 606”), “Revenue from Contracts with Customers”.

We generate revenue from the initial capital sales of systems as well as recurring revenue from the sale of our proprietary disposable devices, from royalties paid to the Company on the sale of various devices as provided by co-development and co-placement arrangements, and from other recurring revenue including ongoing software updates and service contracts.

We account for a contract with a customer when there is a legally enforceable contract between the Company and the customer, the rights of the parties are identified, the contract has commercial substance, and collectability of the contract consideration is probable. We record our revenue based on consideration specified in the contract with each customer, net of any taxes collected from customers that are remitted to government authorities.

For contracts containing multiple products and services, the Company accounts for individual products and services as separate performance obligations if they are distinct, which is if a product or service is separately identifiable from other items in the bundled package, and if a customer can benefit from it on its own or with other resources that are readily available to the customer. The Company recognizes revenues as the performance obligations are satisfied by transferring control of the product or service to a customer.

For arrangements with multiple performance obligations, revenue is allocated to each performance obligation based on its relative standalone selling price. Standalone selling prices are based on observable prices at which the Company separately sells the products or services. If a standalone selling price is not directly observable, then the Company estimates the standalone selling price considering market conditions and entity-specific factors including, but not limited to, features and functionality of the products and services and market conditions. The Company regularly reviews standalone selling prices and updates these estimates if necessary.

Our revenue recognition policy affects the following revenue streams in our business as follows:

Systems:

Contracts related to the sale of systems typically contain separate obligations for the delivery of system(s), installation and an implied obligation to provide software enhancements if and when available for one year following installation. Revenue is recognized when the Company transfers control to the customer, which is generally at the point when acceptance occurs that indicates customer acknowledgment of delivery or installation, depending on the terms of the arrangement. Revenue from the implied obligation to deliver software enhancements if and when available is recognized ratably over the first year following installation of the system as the customer receives the right to software enhancements throughout the period and is included in Other Recurring Revenue. The Company’s system contracts do not provide a right of return. Systems are generally covered by a one-year assurance type warranty; warranty costs were approximately $0.1 million for the nine months ended September 30, 2023, and 2022. Revenue from system delivery and installation represented 39% and 22% of revenue for the nine months ended September 30, 2023, and 2022, respectively.

Disposables:

Revenue from sales of disposable products is recognized when control is transferred to the customers, which generally occurs at the time of shipment, but can also occur at the time of delivery depending on the customer arrangement. Disposable products are covered by an assurance type warranty that provides for the return of defective products. Warranty costs were not material for the nine months ended September 30, 2023, and 2022. Disposable revenue represented 21% and 29% of revenue for the nine months ended September 30, 2023, and 2022, respectively.

Royalty:

The Company receives royalties on the sale of various devices as provided by co-development and co-placement arrangements with various manufacturers. The Company was entitled to royalty payments from Biosense Webster, payable quarterly based on net revenues from sales of the co-developed catheters, during the term of the agreement. Royalty revenue from co-development and co-placement arrangements represented less than 1% and approximately 8% of revenue for the nine months ended September 30, 2023, and 2022, respectively.

Other Recurring Revenue:

Other recurring revenue includes revenue from product maintenance plans, other post warranty maintenance, and the implied obligation to provide software enhancements if and when available for a specified period, typically one year following installation of our systems. Revenue from services and software enhancements is deferred and amortized over the service or update period, which is typically one year. Revenue related to services performed on a time-and-materials basis is recognized when performed. Other recurring revenue represented 40% and 41% of revenue for the nine months ended September 30, 2023, and 2022, respectively.

The following table summarizes the Company’s revenue for systems, disposables, and service and accessories for the nine months ended September 30, 2023, and 2022 (in thousands):

	2023		2022		2023		2022
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Systems	$	3,539	$	2,413	$	8,673	$	4,649
Disposables, service and accessories		4,260		5,244		13,533		16,197
Total revenue	$	7,799	$	7,657	$	22,206	$	20,846

Transaction price allocated to remaining performance obligations relates to amounts allocated to products and services for which the revenue has not yet been recognized. A significant portion of this amount relates to the Company’s systems contracts and obligations that will be recognized as revenue in future periods. These obligations are generally satisfied within two years after contract inception but may occasionally extend longer. Transaction price representing revenue to be earned on remaining performance obligations on system contracts was approximately $12.1 million as of September 30, 2023. Performance obligations arising from contracts for disposables and service are generally expected to be satisfied within one year after entering into the contract.

The following table summarizes the Company’s contract assets and liabilities (in thousands):

	September 30, 2023			December 31, 2022
Contract Assets - unbilled receivables	$	626		$	539

Customer deposits	$	1,796		$	2,339
Product shipped, revenue deferred		1,473			1,389
Deferred service and license fees		4,929			5,268
Total deferred revenue	$	8,198		$	8,996
Less: Long-term deferred revenue		(1,982	)		(1,654	)
Total current deferred revenue	$	6,216		$	7,342

The Company invoices its customers based on the billing schedules in its sales arrangements. Contract assets primarily represent the difference between the revenue that was earned but not billed on service contracts and revenue from system contracts that was recognized based on the relative selling price of the related satisfied performance obligations and the contractual billing terms in the arrangements. Customer deposits primarily relate to future system sales but can also include deposits on disposable sales. Deferred revenue is primarily related to service contracts, for which the service fees are billed up-front, generally quarterly or annually, and for amounts billed in advance for system contracts for which some performance obligations remain outstanding. For service contracts, the associated deferred revenue is generally recognized ratably over the service period. For system contracts, the associated deferred revenue is recognized when the remaining performance obligations are satisfied. The Company did not have any credit losses on its contract assets for the periods presented therefore no allowance for credit losses was recorded as of September 30, 2023, or December 31, 2022.

Revenue recognized for the nine months ended September 30, 2023, and 2022, that was included in the deferred revenue balance at the beginning of each reporting period was $5.7 million and $5.6 million, respectively.

Assets Recognized from the Costs to Obtain a Contract with a Customer

The Company has determined that sales incentive programs for the Company’s sales team meet the requirements to be capitalized as the Company expects to generate future economic benefits from the related revenue generating contracts after the initial capital sales transaction. The costs capitalized as contract acquisition costs included in prepaid expenses and other assets, in the Company’s balance sheet was $0.1 million and $0.2 million as of September 30, 2023, and December 31, 2022, respectively. The Company did not incur any impairment losses during any of the periods presented.

Costs of systems revenue include direct product costs, installation labor and other costs, estimated warranty costs, and initial training and product maintenance costs. These costs are recognized at the time of sale. Costs of disposable revenue include direct product costs and estimated warranty costs and are recognized at the time of sale. Cost of revenue from services and license fees are recognized when incurred.

Leasing Arrangements

A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. The Company accounts for leases in accordance with Accounting Standards Update No. 2016-02 “Leases” (Topic 842) and all subsequent ASUs that modified Topic 842 (“ASC 842”). The Company determines if an arrangement contains a lease at inception.

The Company leases its facilities under operating leases. In accordance with ASC 842, operating lease agreements are recognized on the balance sheet as a right-of-use (“ROU”) asset and a corresponding lease liability. These leases generally do not have significant rent escalation holidays, concessions, leasehold improvement incentives, or other build-out clauses. Further, the leases do not contain contingent rent provisions. Many of our leases include both lease (i.e., fixed payments including rent, taxes, and insurance costs) and non-lease components (i.e., common-area or other maintenance costs) which are accounted for as a single lease component as we have elected the practical expedient to group lease and non-lease components for all leases.

The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. The Company elected not to include short-term leases (i.e., leases with initial terms of twelve months or less) on the balance sheet.

The calculated amounts of the ROU assets and lease liabilities are impacted by the length of the lease term and the discount rate used to calculate the present value of the minimum lease payments. ASC 842 requires the use of the discount rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception.

Stock-Based Compensation

The Company accounts for its grants of stock options, stock appreciation rights, restricted shares, restricted stock units and for its employee stock purchase plan in accordance with the provisions of general accounting principles for share-based payments. These accounting principles require the determination of the fair value of the stock-based compensation at the grant date and the recognition of the related expense over the period in which the stock-based compensation vests.

For time-based awards, the Company utilizes the Black-Scholes valuation model to determine the fair value of stock options and stock appreciation rights at the date of grant. The weighted average assumptions and fair value for options granted during the nine months ended September 30, 2023, were 1) expected dividend rate of 0%; 2) expected volatility of 76% based on the Company’s historical volatility; 3) risk-free interest rate based on the Treasury yield on the date of grant; and 4) expected term of 6.25 years. The resulting compensation expense is recognized over the requisite service period, which is generally four years. Restricted shares and units granted to employees are valued at the fair market value at the date of grant. The Company amortizes the fair market value to expense over the service period. If the shares are subject to performance objectives, the resulting compensation expense is amortized over the anticipated vesting period and is subject to adjustment based on the actual achievement of objectives.

For market-based awards, stock-based compensation expense is recognized over the minimum service period regardless of whether or not the market target is probable of being achieved. The fair value of such awards is estimated on the grant date using Monte Carlo simulations.

Shares purchased by employees under the 2022 Employee Stock Purchase Plans are considered to be non-compensatory.

Net Earnings (Loss) per Common Share

Basic earnings (loss) per common share is computed by dividing the net earnings (loss) for the period by the weighted average number of common shares outstanding during the period. In periods where there is net income, we apply the two-class method to calculate basic and diluted net income (loss) per share of common stock, as our convertible preferred stock is a participating security. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. In periods where there is a net loss, the two-class method of computing earnings per share does not apply as our convertible preferred stock does not contractually participate in our losses. We compute diluted net income (loss) per common share using net income (loss) as the “control number” in determining whether potential common shares are dilutive, after giving consideration to all potentially dilutive common shares, including stock options, warrants, unvested restricted stock units outstanding during the period and potential issuance of stock upon the conversion of our convertible preferred stock issued and outstanding during the period, except where the effect of such securities would be antidilutive.

The following table sets forth the computation of basic and diluted EPS (in thousands except for share and per share amounts):

	2023			2022			2023			2022
	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss	$	(5,369	)	$	(4,917	)	$	(15,673	)	$	(14,138	)
Cumulative dividend on convertible preferred stock		(338	)		(339	)		(1,004	)		(1,005	)
Net loss attributable to common stockholders	$	(5,707	)	$	(5,256	)	$	(16,677	)	$	(15,143	)

Weighted average number of common shares and equivalents:		82,468,971			76,100,007			80,028,243			75,977,920
Basic EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)
Diluted EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)

The Company did not include any portion of unearned restricted shares, outstanding options, stock appreciation rights, warrants or convertible preferred stock in the calculation of diluted loss per common share because all such securities are anti-dilutive for all periods presented. The application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable during these periods because those securities do not contractually participate in its losses.

As of September 30, 2023, the Company had 3,769,675 shares of common stock issuable upon the exercise of outstanding options and stock appreciation rights at a weighted average exercise price of $3.93 per share, 48,909,568 shares of our common stock issuable upon conversion of our Series A Convertible Preferred Stock and 1,502,131 shares of unvested restricted share units. The Company had no unearned restricted shares outstanding as of September 30, 2023.

Recently Issued Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments” and also issued subsequent amendments to the initial guidance under ASU 2018-19, ASU 2019-04 and ASU 2019-05. The standard modifies the measurement approach for credit losses on financial instruments, including trade receivables, from an incurred loss method to a current expected credit loss method, otherwise known as “CECL.” The standard requires the measurement of expected credit losses to be based on relevant information, including historical experience, current conditions and a forecast that is supportable. The standard is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years; early adoption is permitted. The standard must be adopted by applying a cumulative adjustment to retained earnings. The Company adopted the standard in the first quarter of 2023. The impact to the Company’s financial results was immaterial.

Schedule of Prepaid Expenses and Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 281	$ 605
Prepaid commissions	125	187
Deposits	475	669
Other assets	109	72
Total prepaid expenses and other assets	990	1,533
Less: Noncurrent prepaid expenses and other assets	(135)	(208)
Total current prepaid expenses and other assets	$ 855	$ 1,325

Schedule of Future Minimum Operating Lease Payments (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Leases
2023	$ 220
2024	898
2025	919
2026	935
2027	956
2028 and thereafter	4,030
Total lease payments	7,958
Less: Interest	(2,372)
Present value of lease liabilities	$ 5,586

Product Warranty Provisions

9 Months Ended

Sep. 30, 2023

Guarantees and Product Warranties [Abstract]

Product Warranty Provisions

10. Product Warranty Provisions

The Company’s standard policy is to warrant all capital systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability as appropriate.

Accrued warranty, which is included in other accrued liabilities, consists of the following (in thousands):

Schedule of Accrued Warranty

	September 30, 2023			December 31, 2022
Warranty accrual, beginning of the fiscal period	$	163		$	242
Accrual adjustment for product warranty		139			113
Payments made		(191	)		(192	)
Warranty accrual, end of the fiscal period	$	111		$	163

Summary of Restricted Stock Unit Activity (Details) - Restricted Stock Units (RSUs) [Member]	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of Restricted Stock Units, Outstanding, Beginning \| shares	1,208,739
Weighted Average Grant Date Fair Value per Unit, Outstanding, Beginning \| $ / shares	$ 4.21
Number of Restricted Stock Units, Outstanding, Granted \| shares	610,038
Weighted Average Grant Date Fair Value per Unit, Granted \| $ / shares	$ 1.97
Number of Restricted Stock Units, Outstanding, Vested \| shares	(316,646)
Weighted Average Grant Date Fair Value per Unit, Vested \| $ / shares	$ 1.17
Number of Restricted Stock Units, Outstanding, Ending \| shares	1,502,131
Weighted Average Grant Date Fair Value per Unit, Outstanding, Ending \| $ / shares	$ 3.94

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(iv)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(v)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Product Warranty Provisions (Tables)

9 Months Ended

Sep. 30, 2023

Guarantees and Product Warranties [Abstract]

Schedule of Accrued Warranty

Accrued warranty, which is included in other accrued liabilities, consists of the following (in thousands):

Schedule of Accrued Warranty

	September 30, 2023			December 31, 2022
Warranty accrual, beginning of the fiscal period	$	163		$	242
Accrual adjustment for product warranty		139			113
Payments made		(191	)		(192	)
Warranty accrual, end of the fiscal period	$	111		$	163

Statements of Convertible Preferred Stock and Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Convertible preferred stock series A [Member]	Convertible preferred stock series B [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock, Common [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2021	$ 5,584	$ 6	$ 75	$ 532,641	$ (206)	$ (498,676)	$ 33,840
Beginning balance, shares at Dec. 31, 2021	22,387	5,610,121	74,618,240
Stock-based compensation				7,906			7,906
Stock-based compensation, shares			110,726
Components of net loss						(14,138)	(14,138)
Employee stock purchase plan				92			92
Employee stock purchase plan, shares			29,327
Stock issued for the exercise of stock options				67			67
Stock issued for the exercise of stock options, shares			71,960
Preferred stock conversion
Preferred stock conversion, shares	(1)		2,025
Ending balance, value at Sep. 30, 2022	$ 5,584	$ 6	$ 75	540,706	(206)	(512,814)	27,767
Ending balance, shares at Sep. 30, 2022	22,386	5,610,121	74,832,278
Beginning balance, value at Jun. 30, 2022	$ 5,584	$ 6	$ 75	537,963	(206)	(507,897)	29,941
Beginning balance, shares at Jun. 30, 2022	22,386	5,610,121	74,686,056
Stock issued for the exercise of stock options				22			22
Stock issued for the exercise of stock options, shares			31,437
Stock-based compensation				2,695			2,695
Stock-based compensation, shares			100,027
Components of net loss						(4,917)	(4,917)
Employee stock purchase plan				26			26
Employee stock purchase plan, shares			14,758
Ending balance, value at Sep. 30, 2022	$ 5,584	$ 6	$ 75	540,706	(206)	(512,814)	27,767
Ending balance, shares at Sep. 30, 2022	22,386	5,610,121	74,832,278
Beginning balance, value at Dec. 31, 2022	$ 5,583	$ 6	$ 75	543,438	(206)	(516,967)	26,346
Beginning balance, shares at Dec. 31, 2022	22,383	5,610,121	74,874,459
Stock-based compensation				7,987			7,987
Stock-based compensation, shares			316,646
Components of net loss						(15,673)	(15,673)
Employee stock purchase plan				73			73
Employee stock purchase plan, shares			41,685
Stock issued for the exercise of stock options				(18)			$ (18)
Stock issued for the exercise of stock options, shares			30,384				30,188
Preferred stock conversion		$ (6)	$ 6
Preferred stock conversion, shares		(5,610,121)	5,610,121
Ending balance, value at Sep. 30, 2023	$ 5,583		$ 81	551,480	(206)	(532,640)	18,715
Ending balance, shares at Sep. 30, 2023	22,383		80,873,295
Beginning balance, value at Jun. 30, 2023	$ 5,583		$ 81	548,782	(206)	(527,271)	21,386
Beginning balance, shares at Jun. 30, 2023	22,383		80,682,586
Stock-based compensation				2,672			2,672
Stock-based compensation, shares			172,592
Components of net loss						(5,369)	(5,369)
Employee stock purchase plan				25			25
Employee stock purchase plan, shares			17,117
Stock issued for the exercise of stock options				1			1
Stock issued for the exercise of stock options, shares			1,000
Ending balance, value at Sep. 30, 2023	$ 5,583		$ 81	$ 551,480	$ (206)	$ (532,640)	$ 18,715
Ending balance, shares at Sep. 30, 2023	22,383		80,873,295

Commitments and Contingencies (Details Narrative) $ in Millions	Apr. 30, 2021 USD ($)
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Long-term line of credit	$ 1.8

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 22,100	$ 8,586
Restricted cash - current	525	525
Short-term investments		19,844
Accounts receivable, net of allowance of $596 and $235 at 2023 and 2022, respectively	5,246	5,090
Inventories, net	6,788	7,876
Prepaid expenses and other current assets	855	1,325
Total current assets	35,514	43,246
Property and equipment, net	3,443	3,831
Restricted cash	350	744
Operating lease right-of-use assets	5,086	5,384
Prepaid and other non-current assets	135	208
Total assets	44,528	53,413
Current liabilities:
Accounts payable	3,243	3,270
Accrued liabilities	3,160	3,306
Deferred revenue	6,216	7,342
Current portion of operating lease liabilities	413	373
Total current liabilities	13,032	14,291
Long-term deferred revenue	1,982	1,654
Operating lease liabilities	5,173	5,488
Other liabilities	43	51
Total liabilities	20,230	21,484
Series A - Convertible preferred stock:
Convertible preferred stock, Series A, par value $0.001; 22,383 shares outstanding at 2023 and 2022	5,583	5,583
Stockholders’ equity:
Convertible preferred stock, Series B, par value $0.001; 10,000,000 shares authorized, 5,610,121 shares outstanding at 2022		6
Common stock, par value $0.001; 300,000,000 shares authorized, 80,873,295 and 74,874,459 shares issued at 2023 and 2022, respectively	81	75
Additional paid in capital	551,480	543,438
Treasury stock, 4,015 shares at 2023 and 2022	(206)	(206)
Accumulated deficit	(532,640)	(516,967)
Total stockholders’ equity	18,715	26,346
Total liabilities and stockholders’ equity	$ 44,528	$ 53,413

Financial Instruments (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Investments, All Other Investments [Abstract]
Interest income	$ 270	$ 135	$ 835	$ 182	$ 500

Schedule of Accrued Warranty (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Guarantees and Product Warranties [Abstract]
Warranty accrual, beginning of the fiscal period	$ 163	$ 242
Accrual adjustment for product warranty	139	113
Payments made	(191)	(192)
Warranty accrual, end of the fiscal period	$ 111	$ 163

Financial Instruments

9 Months Ended

Sep. 30, 2023

Investments, All Other Investments [Abstract]

Financial Instruments

3. Financial Instruments

The following table summarizes the Company’s cash and held to maturity securities’ amortized cost, gross unrealized gains, gross unrealized losses, and fair value by significant investment category reported as cash and cash equivalents, restricted cash and investments as of September 30, 2023, and December 31, 2022:

	September 30, 2023
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	2,414	$	-	$	-		$	2,414	$	2,414	$	-	$	-	$	-
Level 2
Money market funds		20,561		-		(2	)		20,559		19,686		525		-		350
Subtotal		20,561		-		(2	)		20,559		19,686		525		-		350
Total assets measured at fair value	$	22,975	$	-	$	(2	)	$	22,973	$	22,100	$	525	$	-	$	350

	December 31, 2022
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	3,258	$	-	$	-		$	3,258	$	3,258	$	-	$	-	$	-
Level 2
Money market funds		1,615		-		-			1,615		346		525		-		744
US treasury securities		14,833		2		(2	)		14,833		4,982		-		9,851		-
Corporate debt securities		9,993		-		(6	)		9,987		-		-		9,993		-
Subtotal		26,441		2		(8	)		26,435		5,328		525		19,844		744
Total assets measured at fair value	$	29,699	$	2	$	(8	)	$	29,693	$	8,586	$	525	$	19,844	$	744

Interest income recorded for these investments was approximately $0.8 million and $0.5 million during the nine months ended September 30, 2023, and the year ended December 31, 2022, respectively.

As of September 30, 2023, and December 31, 2022, the Company did not have any financial assets classified as Level 1 or Level 3 nor did the Company have financial liabilities valued at fair value on a recurring basis.

Property and Equipment

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Property and Equipment

6. Property and Equipment

Property and Equipment consist of the following (in thousands):

Schedule of Property and Equipment

	September 30, 2023			December 31, 2022
Equipment	$	4,271		$	4,393
Leasehold improvements		2,911			2,692
Construction in process		-			204
Gross property and equipment		7,182			7,289
Less: Accumulated depreciation		(3,739	)		(3,458	)
Net property and equipment	$	3,443		$	3,831

The Company had less than $0.1 million and $1.2 million of property and equipment additions during the nine months ended September 30, 2023, and the year ended December 31, 2022, respectively, associated with the buildout of the new leased space in St. Louis, Missouri.

Summary of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Product Information [Line Items]
Contract Assets - unbilled receivables	$ 626	$ 539
Total deferred revenue	8,198	8,996
Less: Long-term deferred revenue	(1,982)	(1,654)
Total current deferred revenue	6,216	7,342
Customer Deposits [Member]
Product Information [Line Items]
Total deferred revenue	1,796	2,339
Product Shipped Revenue Deferred [Member]
Product Information [Line Items]
Total deferred revenue	1,473	1,389
Deferred Service and License Fees [Member]
Product Information [Line Items]
Total deferred revenue	$ 4,929	$ 5,268

Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Payables and Accruals [Abstract]
Accrued salaries, bonus, and benefits	$ 1,314	$ 1,381
Accrued licenses and maintenance fees	484	484
Accrued warranties	111	163	$ 242
Accrued professional services	173	129
Deferred contract obligation	1,045	1,045
Other	76	155
Total accrued liabilities	3,203	3,357
Less: Long term accrued liabilities	(43)	(51)
Total current accrued liabilities	$ 3,160	$ 3,306

Subsequent Events

9 Months Ended

Sep. 30, 2023

Subsequent Events [Abstract]

Subsequent Events

12. Subsequent Events

None.

Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Accounting Policies [Abstract]
Net loss	$ (5,369)	$ (4,917)	$ (15,673)	$ (14,138)
Cumulative dividend on convertible preferred stock	(338)	(339)	(1,004)	(1,005)
Net loss attributable to common stockholders	$ (5,707)	$ (5,256)	$ (16,677)	$ (15,143)
Weighted average number of common shares and equivalents, basic	82,468,971	76,100,007	80,028,243	75,977,920
Weighted average number of common shares and equivalents, diluted	82,468,971	76,100,007	80,028,243	75,977,920
Basic EPS	$ (0.07)	$ (0.07)	$ (0.21)	$ (0.20)
Diluted EPS	$ (0.07)	$ (0.07)	$ (0.21)	$ (0.20)

- Definition

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

+ References

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- Definition

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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

+ References

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+ Details

Convertible Preferred Stock and Stockholders’ Equity (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Summary of Performance Award And Market Capitalization Milestones

Tranche #	No. of Shares Subject to PSU		Market Capitalization Milestones⁽¹⁾
1		1,000,000	$	1,000,000,000
2		1,500,000	$	1,500,000,000
3		1,500,000	$	2,000,000,000
4		2,000,000	$	2,500,000,000
5		1,000,000	$	3,000,000,000
6		1,000,000	$	3,500,000,000
7		1,000,000	$	4,000,000,000
8		2,000,000	$	4,500,000,000
9		1,000,000	$	5,000,000,000
10		1,000,000	$	5,500,000,000
Total:		13,000,000

Summary of Option and Stock Appreciation Rights Activity

A summary of the option and stock appreciation rights activity for the nine-month period ended September 30, 2023, is as follows:

	Number of Options/SARs			Range of Exercise Price		Weighted Average Exercise Price per Share
Outstanding, December 31, 2022		3,208,065			$0.74 - $9.87	$	4.21
Granted		718,000			$1.51- $2.57	$	2.54
Exercised		(30,188	)		$0.74 - $2.03	$	1.14
Forfeited		(126,202	)		$0.82 - $9.20	$	3.82
Outstanding, September 30, 2023		3,769,675			$0.74 - $9.87	$	3.93

Summary of Restricted Stock Unit Activity

A summary of the restricted stock unit activity for the nine-month period ended September 30, 2023, is as follows:

	Number of Restricted Stock Units			Weighted Average Grant Date Fair Value per Unit
Outstanding, December 31, 2022		1,208,739		$	4.21
Granted		610,038		$	1.97
Vested		(316,646	)	$	1.17
Outstanding, September 30, 2023		1,502,131		$	3.94

Schedule of Cash and Cash Equivalents, Restricted Cash and Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents	$ 22,100	$ 8,586	$ 30,938
Restricted Cash- current	525	525	618
Short-term Investments		19,844
Restricted Cash	350	744	$ 875
Total assets measured at fair value, Amortized Cost	22,975	29,699
Total assets measured at fair value, Gross Unrealized Gains		2
Total assets measured at fair value, Gross Unrealized Losses	(2)	(8)
Total assets measured at fair value, Fair value	22,973	29,693
Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents	19,686	5,328
Restricted Cash- current	525	525
Short-term Investments		19,844
Restricted Cash	350	744
Cash and Held to maturity securities, Amortized Cost	20,561	26,441
Cash and Held to maturity securities, Gross Unrealized Gains		2
Cash and Held to maturity securities, Gross Unrealized Losses	(2)	(8)
Cash and Held to maturity securities, Fair Value	20,559	26,435
Cash [Member]
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents	2,414	3,258
Cash, Gross Unrealized Gains
Cash, Gross Unrealized Losses
Cash, Fair Value	2,414	3,258
Restricted Cash- current
Short-term Investments
Restricted Cash
Money Market Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents	19,686	346
Cash, Gross Unrealized Gains
Cash, Gross Unrealized Losses	(2)
Cash, Fair Value	20,559	1,615
Restricted Cash- current	525	525
Short-term Investments
Restricted Cash	350	744
Cash	$ 20,561	1,615
US Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents		4,982
Restricted Cash- current
Short-term Investments		9,851
Restricted Cash
Cash and Held to maturity securities, Amortized Cost		14,833
Cash and Held to maturity securities, Gross Unrealized Gains		2
Cash and Held to maturity securities, Gross Unrealized Losses		(2)
Cash and Held to maturity securities, Fair Value		14,833
Corporate Debt Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Debt Securities, Available-for-Sale [Line Items]
Cash and Cash Equivalents
Restricted Cash- current
Short-term Investments		9,993
Restricted Cash
Cash and Held to maturity securities, Amortized Cost		9,993
Cash and Held to maturity securities, Gross Unrealized Gains
Cash and Held to maturity securities, Gross Unrealized Losses		(6)
Cash and Held to maturity securities, Fair Value		$ 9,987

Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Accounts receivable, allowance	$ 596	$ 235
Series A convertible preferred stock, par value	$ 0.001	$ 0.001
Series A convertible preferred stock, shares outstanding	22,383	22,383
Series B convertible preferred stock, par value	$ 0.001	$ 0.001
Series B convertible preferred stock, shares authorized	10,000,000	10,000,000
Series B convertible preferred stock, shares outstanding		5,610,121
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	80,873,295	74,874,459
Treasury stock, shares	4,015	4,015

Leases (Tables)

9 Months Ended

Sep. 30, 2023

Leases

Schedule of Lease Costs and Other Lease Information

The following table represents lease costs and other lease information (in thousands):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Operating lease cost	$	227	$	227	$	681	$	678
Short-term lease cost		4		4		13		24
Total net lease cost	$	231	$	231	$	694	$	702

Cash paid within operating cash flows	$	255	$	232	$	741	$	886

Schedule of Future Minimum Operating Lease Payments

Future minimum payments for operating leases with initial or remaining terms of one year or more as of September 30, 2023, were as follows (in thousands):

	September 30, 2023
2023	$	220
2024		898
2025		919
2026		935
2027		956
2028 and thereafter		4,030
Total lease payments		7,958
Less: Interest		(2,372	)
Present value of lease liabilities	$	5,586

Schedule of Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 6,490	$ 6,556
Work in process	542	530
Finished goods	1,633	2,697
Reserve for excess and obsolescence	(1,877)	(1,907)
Total inventory	$ 6,788	$ 7,876

Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, All Other Investments [Abstract]

Schedule of Cash and Cash Equivalents, Restricted Cash and Investments

	September 30, 2023
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	2,414	$	-	$	-		$	2,414	$	2,414	$	-	$	-	$	-
Level 2
Money market funds		20,561		-		(2	)		20,559		19,686		525		-		350
Subtotal		20,561		-		(2	)		20,559		19,686		525		-		350
Total assets measured at fair value	$	22,975	$	-	$	(2	)	$	22,973	$	22,100	$	525	$	-	$	350

	December 31, 2022
	Valuation									Reported as:
(in thousands)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Restricted Cash- current		Short-term Investments		Restricted Cash
Cash	$	3,258	$	-	$	-		$	3,258	$	3,258	$	-	$	-	$	-
Level 2
Money market funds		1,615		-		-			1,615		346		525		-		744
US treasury securities		14,833		2		(2	)		14,833		4,982		-		9,851		-
Corporate debt securities		9,993		-		(6	)		9,987		-		-		9,993		-
Subtotal		26,441		2		(8	)		26,435		5,328		525		19,844		744
Total assets measured at fair value	$	29,699	$	2	$	(8	)	$	29,693	$	8,586	$	525	$	19,844	$	744

Summary of Performance Award And Market Capitalization Milestones (Details) - PSU Agreement [Member] - Mr. Fischel [Member]	Feb. 23, 2021 USD ($) shares
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	13,000,000
Market capitalization milestone, amount \| $	$ 1,000,000,000.0
Share-Based Payment Arrangement, Tranche One [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 1,000,000,000
Share-Based Payment Arrangement, Tranche Two [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,500,000
Market capitalization milestone, amount \| $	$ 1,500,000,000
Share-Based Payment Arrangement, Tranche Three [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,500,000
Market capitalization milestone, amount \| $	$ 2,000,000,000
ShareBased Compensation Award Tranche Four [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	2,000,000
Market capitalization milestone, amount \| $	$ 2,500,000,000
ShareBased Compensation Award Tranche Five [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 3,000,000,000
ShareBased Compensation Award Tranche Six [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 3,500,000,000
ShareBased Compensation Award Tranche Seven [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 4,000,000,000
ShareBased Compensation Award Tranche Eight [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	2,000,000
Market capitalization milestone, amount \| $	$ 4,500,000,000
ShareBased Compensation Award Tranche Nine [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 5,000,000,000
ShareBased Compensation Award Tranche Ten [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares subject to PSU \| shares	1,000,000
Market capitalization milestone, amount \| $	$ 5,500,000,000

Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2023

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

Schedule of Accrued Liabilities

	September 30, 2023			December 31, 2022
Accrued salaries, bonus, and benefits	$	1,314		$	1,381
Accrued licenses and maintenance fees		484			484
Accrued warranties		111			163
Accrued professional services		173			129
Deferred contract obligation		1,045			1,045
Other		76			155
Total accrued liabilities		3,203			3,357
Less: Long term accrued liabilities		(43	)		(51	)
Total current accrued liabilities	$	3,160		$	3,306

Convertible Preferred Stock and Stockholders’ Equity

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Convertible Preferred Stock and Stockholders’ Equity

9. Convertible Preferred Stock and Stockholders’ Equity

The holders of common stock are entitled to one vote for each share held and to receive dividends when and as declared by the Board of Directors out of funds legally available for dividends, subject to the prior rights or preferences applicable to any preferred stock as may then be outstanding. No dividends have been declared or paid as of September 30, 2023, and the Company does not presently intend to pay any cash dividends in the foreseeable future.

Series B Convertible Preferred Stock

On August 7, 2019, the Company entered into a Securities Purchase Agreement with certain institutional and other accredited investors, whereby it, as part of a private placement, agreed to issue and sell to the investors 5,610,121 shares of the Company’s Series B Convertible Preferred Stock (the “Series B Preferred Stock”), $0.001 par value per share which are convertible into shares of the Company’s common stock, at a price of $2.05 per share. In April 2023, all of the outstanding shares of Series B Convertible Preferred Stock were converted into shares of common stock on a one-for-one basis by the holder. The Series B Preferred Stock, which was a common stock equivalent but non-voting and with a blocker on conversion if the holder exceeded a specified threshold of voting security ownership, was convertible into common stock on a one-for-one basis, subject to adjustment for events such as stock splits, combinations and the like as provided in the Purchase Agreement. The Series B Preferred Stock was reported in the stockholders’ equity section of the Company’s balance sheet.

Series A Convertible Preferred Stock and Warrants

In September 2016, the Company issued (i) 24,000 shares of Series A Convertible Preferred Stock (the “Series A Preferred Stock”), par value $0.001 per share, with a stated value of $1,000 per share, which are convertible into shares of the Company’s common stock at an initial conversion rate of $0.65 per share, subject to adjustment for events such as stock splits, combinations and the like as provided in the certificate of designations covering such Series A Preferred Stock, and (ii) (the SPA Warrants) to purchase an aggregate of 36,923,078 shares of common stock. The shares of Series A Preferred Stock are entitled to vote on an as-converted basis with the common stock, subject to specified beneficial ownership issuance limitations. The Series A Preferred Stock bear dividends at a rate of six percent (6%) per annum, which are cumulative and accrue daily from the date of issuance on the $1,000 stated value. Such dividends will not be paid in cash except in connection with any liquidation, dissolution or winding up of the Company or any redemption of the Series A Preferred Stock. Each holder of convertible preferred shares has the right to require us to redeem such holder’s shares of Series A Preferred Stock upon the occurrence of specified events, which include certain business combinations, the sale of all or substantially all of the Company’s assets, or the sale of more than 50% of the outstanding shares of the Company’s common stock. In addition, the Company has the right to redeem the Series A Preferred Stock in the event of a defined change of control. The Series A Preferred Stock ranks senior to our common stock as to distributions and payments upon the liquidation, dissolution, and winding up of the Company. Since the Series A Preferred Stock are subject to conditions for redemption that are outside the Company’s control, the Series A Preferred Stock are presently reported in the mezzanine section of the balance sheet.

2021 CEO Performance Award Unit Grant

On February 23, 2021, the Company`s Board of Directors, upon recommendation of the Compensation Committee, approved the grant of the CEO Performance Award to the Company’s Chief Executive Officer. The CEO Performance award is a 10-year performance award of up to 13,000,000 shares, tied to the achievement of market capitalization milestones and subject to minimum service requirements.

As detailed in the table below, the CEO Performance Award consists of ten vesting tranches. The first market capitalization milestone is $1.0 billion, and each of the remaining nine market capitalization milestones are in additional $500 million increments, up to $5.5 billion.

Tranche #	No. of Shares Subject to PSU		Market Capitalization Milestones⁽¹⁾
1		1,000,000	$	1,000,000,000
2		1,500,000	$	1,500,000,000
3		1,500,000	$	2,000,000,000
4		2,000,000	$	2,500,000,000
5		1,000,000	$	3,000,000,000
6		1,000,000	$	3,500,000,000
7		1,000,000	$	4,000,000,000
8		2,000,000	$	4,500,000,000
9		1,000,000	$	5,000,000,000
10		1,000,000	$	5,500,000,000
Total:		13,000,000

Each tranche represents a portion of the PSUs covering the number of shares outlined in the table above. Each tranche vests upon (i) satisfaction of the market capitalization milestones and (ii) continued employment as CEO of the Company from the grant date through December 31, 2030. Absent an earlier termination, the PSUs will expire on December 31, 2030. If our CEO ceases employment as CEO of the Company for any reason including death, disability, termination for cause or without cause (as defined in the award agreement), or if he voluntary terminates after service as CEO for at least five years, the remaining service period will be waived and he will retain any PSUs that have vested through the date of termination.

The Company received Shareholder approval at its annual meeting on May 20, 2021 for shares to be issued under the award.

The market capitalization requirement is considered a market condition under FASB Accounting Standards Codification Topic 718 “Compensation – Stock Compensation” and is estimated on the grant date using Monte Carlo simulations. Recognition of stock-based compensation expense of all the tranches commenced on February 23, 2021, the date of grant, as the probability of meeting the ten market capitalization milestones is not considered in determining the timing of expense recognition. The expense will be recognized on an accelerated basis through 2030. Key assumptions for estimating the performance-based awards fair value at the date of grant included share price on grant date, volatility of the Company’s common stock price, risk free interest rate, and grant term.

Total stock-based compensation recorded as operating expense for the CEO Performance Award was $5.3 million for the nine months ended September 30, 2023, and 2022. As of September 30, 2023, and 2022, the Company had approximately $38.8 million and $45.9 million, respectively, of total unrecognized stock-based compensation expense remaining under the CEO Performance Award assuming the grantee’s continued employment as CEO of the Company, or in a similar capacity, through 2030. As of September 30, 2023, none of the performance milestones established by the 2021 CEO Incentive Program have been achieved, and no awards have been earned.

Stock Award Plans

In February 2022, the Compensation Committee of the Board of Directors adopted the 2022 Stock Incentive Plan (the “Plan”) which was subsequently approved by the Company’s shareholders. This plan replaced the 2012 Stock Incentive Plan which expired on May 19, 2022. The 2022 Stock Incentive Plan allows for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares and restricted share units to employees, directors, and third-party consultants.

At September 30, 2023, the Company had 2,645,914 remaining shares of the Company’s common stock to provide for current and future grants under its various equity plans.

At September 30, 2023, the total compensation cost related to options, stock appreciation rights, and non-vested stock granted to employees and non-employees under the Company’s stock award plans but not yet recognized was approximately $4.3 million, excluding compensation not yet recognized related to the CEO Performance Award discussed above. This cost will be amortized over a period of up to four years over the underlying estimated service periods and will be adjusted for subsequent changes in actual forfeitures and anticipated vesting periods.

A summary of the option and stock appreciation rights activity for the nine-month period ended September 30, 2023, is as follows:

	Number of Options/SARs			Range of Exercise Price		Weighted Average Exercise Price per Share
Outstanding, December 31, 2022		3,208,065			$0.74 - $9.87	$	4.21
Granted		718,000			$1.51- $2.57	$	2.54
Exercised		(30,188	)		$0.74 - $2.03	$	1.14
Forfeited		(126,202	)		$0.82 - $9.20	$	3.82
Outstanding, September 30, 2023		3,769,675			$0.74 - $9.87	$	3.93

A summary of the restricted stock unit activity for the nine-month period ended September 30, 2023, is as follows:

	Number of Restricted Stock Units			Weighted Average Grant Date Fair Value per Unit
Outstanding, December 31, 2022		1,208,739		$	4.21
Granted		610,038		$	1.97
Vested		(316,646	)	$	1.17
Outstanding, September 30, 2023		1,502,131		$	3.94

Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Schedule of Revenue Disaggregated by Type

The following table summarizes the Company’s revenue for systems, disposables, and service and accessories for the nine months ended September 30, 2023, and 2022 (in thousands):

	2023		2022		2023		2022
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Systems	$	3,539	$	2,413	$	8,673	$	4,649
Disposables, service and accessories		4,260		5,244		13,533		16,197
Total revenue	$	7,799	$	7,657	$	22,206	$	20,846

Summary of Contract Assets and Liabilities

The following table summarizes the Company’s contract assets and liabilities (in thousands):

	September 30, 2023			December 31, 2022
Contract Assets - unbilled receivables	$	626		$	539

Customer deposits	$	1,796		$	2,339
Product shipped, revenue deferred		1,473			1,389
Deferred service and license fees		4,929			5,268
Total deferred revenue	$	8,198		$	8,996
Less: Long-term deferred revenue		(1,982	)		(1,654	)
Total current deferred revenue	$	6,216		$	7,342

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted EPS (in thousands except for share and per share amounts):

	2023			2022			2023			2022
	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss	$	(5,369	)	$	(4,917	)	$	(15,673	)	$	(14,138	)
Cumulative dividend on convertible preferred stock		(338	)		(339	)		(1,004	)		(1,005	)
Net loss attributable to common stockholders	$	(5,707	)	$	(5,256	)	$	(16,677	)	$	(15,143	)

Weighted average number of common shares and equivalents:		82,468,971			76,100,007			80,028,243			75,977,920
Basic EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)
Diluted EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)

Summary of Option and Stock Appreciation Rights Activity (Details)	9 Months Ended
	Sep. 30, 2023 $ / shares shares
Number of Options/SARs, Outstanding, Beginning \| shares	3,208,065
Weighted Average Exercise Price per Share, Outstanding, Beginning	$ 4.21
Number of Options/SARs, Granted \| shares	718,000
Weighted Average Exercise Price per Share, Granted	$ 2.54
Number of Options/SARs, Exercised \| shares	(30,188)
Weighted Average Exercise Price per Share, Exercised	$ 1.14
Number of Options/SARs, Forfeited \| shares	(126,202)
Weighted Average Exercise Price per Share, Forfeited	$ 3.82
Number of Options/SARs, Outstanding, Ending \| shares	3,769,675
Weighted Average Exercise Price per Share, Outstanding, Ending	$ 3.93
Minimum [Member]
Range of Exercise Price, Outstanding, Beginning	0.74
Exercise Price, Granted	1.51
Range of Exercise Price, Exercised	0.74
Range of Exercise Price, Forfeited	0.82
Range of Exercise Price, Outstanding, Ending	0.74
Maximum [Member]
Range of Exercise Price, Outstanding, Beginning	9.87
Exercise Price, Granted	2.57
Range of Exercise Price, Exercised	2.03
Range of Exercise Price, Forfeited	9.20
Range of Exercise Price, Outstanding, Ending	$ 9.87

Inventories

9 Months Ended

Sep. 30, 2023

Inventory Disclosure [Abstract]

Inventories

4. Inventories

Inventories consist of the following (in thousands):

Schedule of Inventories

	September 30, 2023			December 31, 2022
Raw materials	$	6,490		$	6,556
Work in process		542			530
Finished goods		1,633			2,697
Reserve for excess and obsolescence		(1,877	)		(1,907	)
Total inventory	$	6,788		$	7,876

The reserve for excess and obsolescence primarily includes Niobe Systems and related raw materials and spare parts.

Property and Equipment (Details Narrative) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property and equipment additions	$ 0.1	$ 1.2

Cover - shares	9 Months Ended
Cover - shares	Sep. 30, 2023	Oct. 31, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Sep. 30, 2023
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Entity File Number	001-36159
Entity Registrant Name	STEREOTAXIS, INC.
Entity Central Index Key	0001289340
Entity Tax Identification Number	94-3120386
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	710 North Tucker Boulevard
Entity Address, Address Line Two	Suite 110
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63101
City Area Code	(314)
Local Phone Number	678-6100
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	STXS
Security Exchange Name	NYSEAMER
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		80,884,561

Schedule of Revenue Disaggregated by Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Product Information [Line Items]
Total revenue	$ 7,799	$ 7,657	$ 22,206	$ 20,846
Systems [Member]
Product Information [Line Items]
Total revenue	3,539	2,413	8,673	4,649
Disposables Service and Accessories [Member]
Product Information [Line Items]
Total revenue	$ 4,260	$ 5,244	$ 13,533	$ 16,197

- 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
-Topic 924
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479941/924-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 30
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-30

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-4

+ Details

Schedule of Lease Costs and Other Lease Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases
Operating lease cost	$ 227	$ 227	$ 681	$ 678
Short-term lease cost	4	4	13	24
Total net lease cost	231	231	694	702
Cash paid within operating cash flows	$ 255	$ 232	$ 741	$ 886

Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

Risks and Uncertainties

Risks and Uncertainties

Concentration of Credit Risk

Concentration of Credit Risk

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, money market instruments, and other highly liquid investments with original maturities of three months or less.

Restricted Cash

Restricted Cash

Investments

Investments

Fair Value Measurements

Fair Value Measurements

Financial instruments consist of cash and cash equivalents, restricted cash, investments, accounts receivable, and accounts payable.

Level 1:		Values are based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

Level 2:		Values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or other model-based valuation techniques for which all significant assumptions are observable in the market.

Level 3:		Values are generated from model-based techniques that use significant assumptions not observable in the market.

Accounts Receivable, Contract Assets, and Allowance for Credit Losses

Accounts Receivable, Contract Assets, and Allowance for Credit Losses

Revenue and Costs of Revenue

Revenue and Costs of Revenue

The Company accounts for revenue in accordance with Accounting Standards Codification Topic 606 (“ASC 606”), “Revenue from Contracts with Customers”.

Our revenue recognition policy affects the following revenue streams in our business as follows:

Systems:

Disposables:

Royalty:

Other Recurring Revenue:

The following table summarizes the Company’s revenue for systems, disposables, and service and accessories for the nine months ended September 30, 2023, and 2022 (in thousands):

	2023		2022		2023		2022
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Systems	$	3,539	$	2,413	$	8,673	$	4,649
Disposables, service and accessories		4,260		5,244		13,533		16,197
Total revenue	$	7,799	$	7,657	$	22,206	$	20,846

The following table summarizes the Company’s contract assets and liabilities (in thousands):

	September 30, 2023			December 31, 2022
Contract Assets - unbilled receivables	$	626		$	539

Customer deposits	$	1,796		$	2,339
Product shipped, revenue deferred		1,473			1,389
Deferred service and license fees		4,929			5,268
Total deferred revenue	$	8,198		$	8,996
Less: Long-term deferred revenue		(1,982	)		(1,654	)
Total current deferred revenue	$	6,216		$	7,342

Assets Recognized from the Costs to Obtain a Contract with a Customer

Assets Recognized from the Costs to Obtain a Contract with a Customer

Leasing Arrangements

Leasing Arrangements

Stock-Based Compensation

Stock-Based Compensation

Shares purchased by employees under the 2022 Employee Stock Purchase Plans are considered to be non-compensatory.

Net Earnings (Loss) per Common Share

Net Earnings (Loss) per Common Share

The following table sets forth the computation of basic and diluted EPS (in thousands except for share and per share amounts):

	2023			2022			2023			2022
	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss	$	(5,369	)	$	(4,917	)	$	(15,673	)	$	(14,138	)
Cumulative dividend on convertible preferred stock		(338	)		(339	)		(1,004	)		(1,005	)
Net loss attributable to common stockholders	$	(5,707	)	$	(5,256	)	$	(16,677	)	$	(15,143	)

Weighted average number of common shares and equivalents:		82,468,971			76,100,007			80,028,243			75,977,920
Basic EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)
Diluted EPS	$	(0.07	)	$	(0.07	)	$	(0.21	)	$	(0.20	)

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

Prepaid Expenses and Other Assets (Tables)

9 Months Ended

Sep. 30, 2023

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Assets

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

	September 30, 2023			December 31, 2022
Prepaid expenses	$	281		$	605
Prepaid commissions		125			187
Deposits		475			669
Other assets		109			72
Total prepaid expenses and other assets		990			1,533
Less: Noncurrent prepaid expenses and other assets		(135	)		(208	)
Total current prepaid expenses and other assets	$	855		$	1,325

Leases (Details Narrative) $ in Millions	Mar. 01, 2021 USD ($) ft²	Sep. 30, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Weighted average discount rate, operating lease		9.00%
Weighted average remaining lease term, operating lease		8 years 2 months 26 days
Office Lease Agreement [Member] \| Globe Building Company [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Area of land \| ft²	43,100
Operating lease, term	10 years
Operating lease, option to extend	two
Operating lease, renewal term	5 years
Office Lease Agreement [Member] \| Globe Building Company [Member] \| 2022 [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payments for rent	$ 0.8
Office Lease Agreement [Member] \| Globe Building Company [Member] \| 2031 [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Payments for rent	$ 1.0

Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Total revenue	$ 7,799	$ 7,657	$ 22,206	$ 20,846
Cost of revenue:
Total cost of revenue	3,740	3,090	10,084	6,685
Gross margin	4,059	4,567	12,122	14,161
Operating expenses:
Research and development	2,668	2,818	8,061	8,158
Sales and marketing	3,097	3,111	9,585	9,337
General and administrative	3,933	3,690	11,011	10,986
Total operating expenses	9,698	9,619	28,657	28,481
Operating loss	(5,639)	(5,052)	(16,535)	(14,320)
Other income			27
Interest income, net	270	135	835	182
Net loss	(5,369)	(4,917)	(15,673)	(14,138)
Cumulative dividend on convertible preferred stock	(338)	(339)	(1,004)	(1,005)
Net loss attributable to common stockholders	$ (5,707)	$ (5,256)	$ (16,677)	$ (15,143)
Net loss per share attributable to common stockholders:
Basic	$ (0.07)	$ (0.07)	$ (0.21)	$ (0.20)
Diluted	$ (0.07)	$ (0.07)	$ (0.21)	$ (0.20)
Weighted average number of common shares and equivalents:
Basic	82,468,971	76,100,007	80,028,243	75,977,920
Diluted	82,468,971	76,100,007	80,028,243	75,977,920
Systems [Member]
Revenue:
Total revenue	$ 3,539	$ 2,413	$ 8,673	$ 4,649
Cost of revenue:
Total cost of revenue	2,909	2,016	7,309	3,817
Disposables Service and Accessories [Member]
Revenue:
Total revenue	4,260	5,244	13,533	16,197
Cost of revenue:
Total cost of revenue	$ 831	$ 1,074	$ 2,775	$ 2,868