Summary of Significant Accounting Policies | Note 2. Summary of Significant Accounting Policies Basis of Presentation The accompanying unaudited interim condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”) for interim financial reporting. Accordingly, they do not include all of the information and disclosures required by U.S. GAAP for complete financial statements as certain footnotes or other financial information that are normally required by U.S. GAAP can be condensed or omitted. These condensed consolidated statements are unaudited and, in the opinion of management, include all adjustments (consisting of normal recurring adjustments and accruals) necessary to fairly present the results of the interim periods. The results of operations and cash flows for the three and nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the fiscal year ended December 31, 2022 or any other future period. As further described in Note 1, in September 2022, the Company entered into the Rocket Merger Agreement. However, as the Mergers have not yet been completed, the Company has prepared these financial statements as if the Company will remain an independent reporting company, and accordingly, these financial statements do not include any of the potential accounting impacts that may result from the completion of the Rocket Merger Agreement. Reverse Recapitalization The SPAC Business Combination was accounted for as a reverse recapitalization in accordance with U.S. GAAP (the “Reverse Recapitalization”). Under this method of accounting, the Company is treated as the “acquired” company and Old Renovacor is treated as the acquirer for financial reporting purposes. As a result, the consolidated assets, liabilities and results of operations prior to the SPAC Business Combination are those of Old Renovacor. Additionally, the shares and corresponding capital amounts and losses per share, prior to the SPAC Business Combination, have been retroactively restated based on shares reflecting the applicable exchange ratio resulting from the Common Per Share Merger Consideration and/or the Preferred Per Share Merger Consideration (each as defined by the SPAC Merger Agreement). Emerging Growth Company Status The Company is an "emerging growth company", as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). Under the JOBS Act, the Company may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the independent registered public accounting firm attestation requirements of Section 404 of the Sarbanes-Oxley Act, reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved. Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that a company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s financial statement with another public company which is neither an emerging growth company nor an emerging growth company which has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, expense, and related disclosures. The Company bases estimates and assumptions on historical experience when available and on various factors that it believes to be reasonable under the circumstances. The Company evaluates its estimates and assumptions on an ongoing basis. Estimates relied upon in preparing these financial statements relate to, but are not limited to, the fair value of financial instruments, stock-based compensation assumptions and accrued expenses (including accrued and prepaid clinical costs). Actual results may differ from these estimates under different assumptions or conditions. Financial Instruments The fair value of the Company’s financial instruments is determined and disclosed in accordance with the three-tier fair value hierarchy specified in Note 4, Fair Value Measurements . The Company is required to disclose the estimated fair values of its financial instruments. As of September 30, 2022 and December 31, 2021, the Company’s financial instruments consisted of cash equivalents, receivables, a note payable, and warrant and share earnout liabilities. As of September 30, 2022, the Company did not have any other derivatives, hedging instruments or other similar financial instruments. Concentration of Credit Risk Financial instruments that subject the Company to significant concentrations of credit risk consist primarily of cash primarily held at one financial institution, which, at times, may exceed federally insured limits, and cash equivalents consisting of investments in money market funds managed by a variety of financial institutions. The Company's credit risk is managed by investing in only highly rated money market instruments. As a result, no significant additional credit risk is believed by management to be inherent in the Company’s assets and the Company has not experienced any losses in such accounts and believes it is not exposed to any significant risk on such accounts . Cash and Cash Equivalents The Company considers all highly liquid investments with maturities of 90 days or less when purchased to be “cash equivalents.” Cash and cash equivalents at September 30, 2022 consisted of cash and money market funds. Property and Equipment, net Property and equipment is carried at acquisition cost less accumulated depreciation and amortization, subject to review for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable in accordance with ASC 360-10-35, Impairment or Disposal of Long-Lived Assets. The cost of normal, recurring, or periodic repairs and maintenance activities related to property and equipment, if any, are expensed as incurred. The cost for planned major maintenance activities, including the related acquisition or construction of assets, is capitalized if the repair will result in future economic benefits. Depreciation and amortization are computed using the straight-line method based on the estimated useful lives of the related assets. Equipment and other long-lived assets are depreciated over three to five years . Leasehold improvements are amortized over the remaining lease term or the related useful life, if shorter. When an asset is disposed of, the associated cost and accumulated depreciation or amortization is removed from the related accounts on the Company's balance sheet with any resulting gain or loss included in the Company's condensed consolidated statement of operations . Operating Lease Right-of-use Assets and Lease Liabilities The Company accounts for leases under ASC 842, Leases ("ASC 842"). The Company determines if an arrangement is or contains a lease at inception, which is the date on which the terms of the contract are agreed to, and the agreement creates enforceable rights and obligations. Under ASC 842, a contract is or contains a lease when (i) explicitly or implicitly identified assets have been deployed in the contract and (ii) the customer obtains substantially all of the economic benefits from the use of that underlying asset and directs how and for what purpose the asset is used during the term of the contract. The Company also considers whether its service arrangements include the right to control the use of an asset. Operating leases are included in “Operating lease right-of-use assets” within the Company’s balance sheets and represent the Company’s right to use an underlying asset for the lease term. The Company’s related obligation to make lease payments are included in “Operating lease liability” and “Operating lease liability, net of current portion” within the Company’s balance sheets. Operating lease right-of-use (“ROU”) assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As none of the Company’s leases provide an implicit rate, the Company uses its incremental borrowing rates, which are the rates incurred to borrow on a collateralized basis over a similar term, an amount equal to the lease payments in a similar economic environment. Lease expense for lease payments is recognized on a straight-line basis over the lease term. The ROU assets are tested for impairment according to ASC 360, Property, Plant, and Equipment (“ASC 360”). Leases with an initial term of 12 months or less are not recorded on the balance sheet and are recognized as lease expense on a straight-line basis over the lease term. As of September 30, 2022, the Company’s operating lease ROU assets and corresponding short-term and long-term lease liabilities primarily relate to its Cambridge, Massachusetts facility operating lease, as more fully described in Note 8. Other Current Liability In September 2022, the Company entered into a short-term financing arrangement with a third-party vendor to finance insurance premiums. The aggregate amount financed under this agreement was $ 1.0 million. As of September 30, 2022, the balance of $ 1.0 million, which is included in “Other current liability’ in the Company’s balance sheets, is scheduled to be paid in monthly installments through May 2023. Warrant Liability The Company accounts for stock warrants as either equity instruments, liabilities or derivative liabilities in accordance with ASC Topic 480, Distinguishing Liabilities from Equity ("ASC 480") and/or ASC Topic 815, Derivatives and Hedging ("ASC 815"), depending on the specific terms of the warrant agreement. Liability-classified warrants are recorded at their estimated fair values at each reporting period until they are exercised, terminated, reclassified or otherwise settled. Changes in the estimated fair value of liability-classified warrants are recorded in Change in Fair Value of Warrant Liability in the Company’s condensed consolidated statements of operations. Equity-classified warrants are recorded within additional paid-in capital at the time of issuance and not subject to remeasurement. Share Earnout Liability The Company accounts for share earnout arrangements that represent equity-linked instruments as either liabilities or equity instruments in accordance with ASC 815, unless such arrangements are within the scope of ASC Topic 718, Compensation–Stock Compensation ("ASC 718"), depending on the specific terms of the contract. Contracts classified as liabilities are recorded at their estimated fair values at each reporting period until they are no longer outstanding. Changes in the estimated fair value of liability-classified share earnout arrangements are recorded in Change in Fair Value of Share Earnout Liability in the Company’s condensed consolidated statements of operations. Research and Development Expense The Company expenses research and development expenses as incurred. The Company’s research and development expenses consist primarily of personnel-related expenses such as salaries, stock-based compensation, and benefits, and external costs of outside vendors engaged to conduct preclinical development activities, including manufacturing of preclinical and clinical drug supply. The Company accrues for expenses related to development activities performed by third parties based on an evaluation of services received and efforts expended pursuant to the terms of the contractual arrangements. There may be instances in which payments made to the Company’s vendors will exceed the level of services provided and result in a prepayment of expenses. In accruing service fees, the Company estimates the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, the Company will adjust the accrual or prepaid expense accordingly . Stock-Based Compensation The Company expenses stock-based compensation to employees and non-employees over the requisite service period, generally the vesting period, based on the estimated grant-date fair value of the awards. The Company accounts for forfeitures as they occur. Stock-based awards with graded-vesting schedules are recognized on a straight-line basis over the requisite service period for each separately vesting portion of the award. The Company estimates the fair value of stock option grants using the Black-Scholes option pricing model, and the assumptions used in calculating the fair value of stock-based awards represent management’s best estimates and involve inherent uncertainties and the application of management’s judgment. All stock-based compensation costs are recorded in general and administrative or research and development costs in the condensed consolidated statements of operations based upon the underlying individual’s role at the Company. Income Taxes In accordance with ASC 270, Interim Reporting , and ASC 740, Income Taxes , the Company is required at the end of each interim period to determine the best estimate of its annual effective tax rate and then apply that rate in providing for income taxes on a current year-to-date (interim period) basis. For the three and nine months ended September 30, 2022 and 2021, the Company recorded no tax expense or benefit due to the expected current year loss and its historical losses. The Company has no t recorded its net deferred tax asset as of either September 30, 2022 or December 31, 2021 because it maintained a full valuation allowance against all deferred tax assets as of these dates as management has determined that it is not more likely than not that the Company will realize these future tax benefits. As of September 30, 2022 and December 31, 2021, the Company had no uncertain tax positions. Net Loss per Share of Common Stock Basic and diluted net loss per share of common stock is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during each period, which includes shares of common stock underlying the Pre-funded Warrant (as defined herein), as such warrant is exercisable, in whole or in part, for nominal cash consideration with no expiration date. Shares of common stock outstanding but subject to forfeiture and cancellation by the Company (e.g., Sponsor Earnout Shares, as defined in the SPAC Merger Agreement) are excluded from the weighted-average shares until the period in which such shares are no longer subject to forfeiture. The diluted net loss per share calculation gives effect to, if any, the potential exercise or conversion of securities, such as stock options, Public Warrants and Private Placement Warrants, and Sponsor Earnout Shares and Old Renovacor Earnout Shares (each as defined herein), which would result in the issuance of incremental shares of common stock, unless their effect would be anti-dilutive. See Note 13 for additional details. New Accounting Pronouncements From time to time, new accounting pronouncements are issued by the FASB and rules are issued by the SEC that the Company has or will adopt as of a specified date. Unless otherwise noted, management does not believe that any other recently issued accounting pronouncements issued by the FASB or guidance issued by the SEC had, or is expected to have, a material impact on the Company’s present or future consolidated financial statements. Accounting Pronouncements Recently Adopted In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) ("ASU 2016-02"). ASU 2016-02 (amended by ASU 2019-10 and ASU 2020-05) is effective for non-public entities and emerging growth companies for fiscal years beginning after December 15, 2021 and interim periods within fiscal years beginning after December 15, 2022. The new standard establishes a ROU model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the statement of operations. A modified retrospective transition approach is required at the beginning of the earliest comparative per iod presented in the financial statements, with certain practical expedients available. The Company adopted this standard effective January 1, 2022 . The adoption did no t have a material impact on the Company’s consolidated condensed financial statements as of the adoption date. However, in the second quarter of 2022, the Company entered into two real estate leases which resulted in the recognition of the required right-of use asset and corresponding lease liability for such lease obligations. See Note 8 for additional details. Should the Company enter into new or amend its current leases in the future, the carrying values of the Company's right-of use assets and lease liabilities could be materially impacted. |