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Summary of Significant Accounting Policies (Policies) | 3 Months Ended
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Mar. 31, 2024
Accounting Policies [Abstract] |
Basis of Presentation | Basis of Presentation The accompanying unaudited condensed financial statements have been prepared in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X for interim financial information and reflect all adjustments necessary to state fairly the Company’s financial position, results of operations and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. Results for interim periods are not indicative of the results for the entire fiscal year. The accompanying unaudited condensed financial statements should be read in conjunction with the audited financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. Certain information and footnote disclosures, including significant accounting policies, normally included in fiscal year financial statements prepared in accordance with accounting principles generally accepted in the U.S. (GAAP) have been condensed or omitted. The condensed balance sheet as of December 31, 2023 was derived from the audited financial statements. Liquidity and Capital Resources As of March 31, 2024, we maintained cash and cash equivalents of $11.5 million and we have $40.0 million in outstanding aggregate principal amount on our Perceptive Term Loan Facility (see Note 6 – Debt). We have incurred significant losses since inception and, as a result, we have funded our operations to date primarily through the sale of common stock, the sale of convertible preferred stock, the issuance of notes payable, and from our two primary revenue sources: (i) diagnostic testing, which includes lung diagnostic testing and (ii) providing biopharmaceutical companies with development and testing services and licensing our technologies. In accordance with Accounting Standards Update 2014-15 (ASC Topic 205-40), Presentation of Financial Statements - Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, the Company is required to evaluate whether there is substantial doubt about its ability to continue as a going concern each reporting period, including interim periods. In evaluating the Company’s ability to continue as a going concern, management projected its cash flow sources and evaluated the conditions and events that could raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that these financial statements were issued. Management considered the Company’s current projections of future cash flows, our ability to execute our current operating plan, current financial condition, sources of liquidity and debt obligations for at least one year from the date of issuance of this Form 10-Q in considering whether it has the ability to meet its obligations. Our ability to meet our obligations as they come due may be impacted by our ability to remain compliant with financial covenants in our Perceptive Term Loan Facility (see Note 6 – Debt) or to obtain waivers or amendments that impact the related covenants. As of March 31, 2024, the Company was in compliance with all restrictive and financial covenants associated with its borrowings. Our ability to maintain our financial covenants under our Perceptive Term Loan Facility during the next twelve months is, in part, dependent upon executing our current operating plan. If we do not execute our current operating plan and maintain our financial covenants, this could result in an Event of Default (as defined in the Perceptive Term Loan Facility), causing an acceleration and repayment of the outstanding balances. The Perceptive Term Loan Facility requires the Company to meet certain minimum net revenue threshold amounts agreed to between the Company and Perceptive as of the last day of each fiscal quarter, which commenced with the fiscal quarter ending March 31, 2023. During 2023, the Company entered into various amendments to the Perceptive Term Loan Facility to reduce the relevant Minimum Net Revenue thresholds. On February 29, 2024, the Company entered into a third amendment to the Perceptive Term Loan Facility, whereby, subject to the terms and conditions of the third amendment, the Minimum Net Revenue Covenant was amended to reduce the relevant threshold through the fiscal quarter ended December 31, 2025 (see Note 6 – Debt). Subsequent to March 31, 2024, the Company closed an underwritten offering of common stock and a concurrent private placement (the April 2024 Offering). Collectively, the Company raised net proceeds of approximately $51.5 million (see Note 14 – Subsequent Events). We have taken steps to improve our liquidity through raising debt and equity capital and have also undertaken several proactive measures including, among other things, the reduction of planned capital expenditures and certain operating expenses as previously disclosed. If we do not execute our current operating plan, we may need to consider further measures to reduce our operating expenses. These measures would limit or reduce our operations and could include a hiring freeze, reductions in our workforce, reduction in cash compensation, deferring capital expenditures, and reducing other operating costs. If we do not execute our current operating plan we may need to continue to raise additional funds from external sources, such as through the issuance of debt or equity securities. We may also raise additional capital to restructure our existing debt or for general working capital purposes, or both. If we raise additional capital through debt financing, we may be subject to covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends. If we do raise additional capital through equity offerings, the ownership interest of our existing stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect our existing stockholders’ rights. There can be no assurance that additional capital will be available to us or, if available, will be available in sufficient amounts or on terms acceptable to us or on a timely basis. We expect to continue to incur operating losses in the near term while we make investments to support our anticipated growth. Our ability to maintain our financial covenants is, in part, dependent upon executing our current operating plan and, along with the items noted above, raises substantial doubt about the Company’s ability to continue as a going concern within one year after the date the financial statements are issued. Our unaudited financial statements have been prepared assuming we will continue as a going concern and do not include any adjustments that might be necessary should we be unable to continue as a going concern.
Use of Estimates | Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the balance sheet date and the reported amounts of revenue and expenses during the reporting periods. Actual results could differ from those estimates.
Concentrations of Credit Risk and Other Uncertainties | Concentrations of Credit Risk and Other Uncertainties Substantially all of the Company’s cash and cash equivalents are deposited with one major financial institution in the United States. The Company continually monitors its positions with, and the credit quality of, the financial institution with which it holds cash. Periodically throughout the year, the Company has maintained balances in various operating accounts in excess of federally insured limits. The Company has not experienced any losses on its deposits of cash and cash equivalents. Several of the components for certain of the Company's sample collection kits, test reagents, and test systems are obtained from single-source suppliers. If these single-source suppliers fail to satisfy the Company's requirements on a timely basis, the Company could suffer delays in being able to deliver its diagnostic solutions, a possible loss of revenue, or incur higher costs, any of which could adversely affect its operating results. For a discussion of credit risk concentration of accounts receivable as of March 31, 2024 and December 31, 2023, see Note 9 – Revenue and Accounts Receivable Credit Concentration.
Restricted Cash | Restricted Cash Restricted cash consists of deposits related to the Company’s corporate credit card. As of March 31, 2024 and December 31, 2023, the Company had $0.1 million r estricted cash, respectively, which was included in ‘Other current assets’ in the accompanying condensed balance sheets.
Inventory | Inventory Inventory consists primarily of material supplies, which are consumed in the performance of testing services and charged to ‘Direct costs and expenses’. Inventory is stated at cost and reported within ‘Other current assets’ in the condensed balance s heets and was $1.4 million for both periods ended March 31, 2024 and December 31, 2023, respectively. The Company recorded a reserve for excess inventory of $0.1 million for both periods ended March 31, 2024 and December 31, 2023, respectively. During the three months ended March 31, 2024 and 2023, the Company recorded an insignificant amount, respectively, to the condensed statement of operations for excess and obsolete inventory.
Other Assets | Other Assets The Company has a $5.0 million cash refundable deposit to secure the performance of the Company’s obligations associated with the operating lease agreement with Centennial Valley Properties I, LLC and subsequently assigned to CVP I Owner LLC (see Note 7 – Leases). As of March 31, 2024 and December 31, 2023, the $5.0 million refundable deposit is reported within 'Other long-term assets' in the condensed balance sheets.
Fair Value of Financial Instruments | Fair Value of Financial Instruments U.S. GAAP for fair value establishes a hierarchy that prioritizes fair value measurements based on the types of inputs used for the various valuation techniques (market approach, income approach and cost approach). We utilize a combination of market and income approaches to value our financial instruments. Our financial assets and liabilities are measured using inputs from the three levels of the fair value hierarchy. Fair value measurements are categorized within the fair value hierarchy based upon the lowest level of the most significant inputs used to determine fair value. The three levels of the hierarchy and the related inputs are as follows:
Level |  | Inputs
1 |  | Unadjusted quoted prices in active markets for identical assets and liabilities.
2 |  | Unadjusted quoted prices in active markets for similar assets and liabilities;
|  | Unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active; or
|  | Inputs other than quoted prices that are observable for the asset or liability.
3 |  | Unobservable inputs for the asset or liability.
The carrying amounts of certain financial instruments including cash and cash equivalents, accounts receivable, prepaid expenses and other current assets, other long-term assets, accounts payable and accrued liabilities approximate fair value due to their relatively short maturities. See Note 4 — Fair Value for further discussion related to estimated fair value measurements.
Recent Issued Accounting Standards | Standards being evaluated In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting: Improvements to Reportable Segment Disclosures (ASC Topic 280). This ASU requires all public entities to provide additional disclosures about the entity's reportable segments and more detailed information about a reportable segment's expenses. This guidance became effective for the Company beginning January 1, 2024. The Company is currently evaluating this guidance and assessing the overall impact on its financial statements. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. This ASU improves the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the rate reconciliation and income taxes paid by jurisdiction. This guidance will become effective for the Company beginning January 1, 2025, with early adoption permitted. The Company is currently evaluating this guidance and assessing the overall impact on its financial statements.

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