The Company	9 Months Ended
The Company	Sep. 30, 2021
Accounting Policies [Abstract]
The Company	Note 1: The Company Incorporated in 2002 under the laws of France, DBV Technologies S.A. (“DBV Technologies,” or the “Company”, or the “group”) is a clinical-stage specialty biopharmaceutical company focused on changing the field of immunotherapy by developing a novel technology platform called Viaskin ™ . The Company’s therapeutic approach is based on epicutaneous immunotherapy, or EPIT ™ , a proprietary method of delivering biologically active compounds to the immune system through intact skin using Viaskin ™ . Basis of Presentation The condensed consolidated financial statements of the Company and its wholly-owned subsidiaries are unaudited and have been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”) and are presented in U.S. dollars. The amounts are presented in thousands unless otherwise indicated. All significant intercompany accounts and transactions between the Company and its subsidiaries have been eliminated on consolidation. The unaudited condensed consolidated financial statements presented in this Quarterly Report should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K filed with the SEC on March 17, 2021 (the “Annual Report”). The condensed consolidated statement of financial position at December 31, 2020 was derived from the audited consolidated financial statements but does not include all disclosures required by U.S. GAAP. The Company’s critical accounting policies are detailed in the Annual Report. The Company’s critical accounting policies have not changed materially since December 31, 2020. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted from these interim financial statements. However, these condensed consolidated financial statements include all adjustments, consisting only of normal recurring adjustments, which are, in the opinion of management, necessary to fairly state the results of the interim period. These interim financial results are not necessarily indicative of results to be expected for the full fiscal year ending December 31, 2021, or any other future period. Use of estimates The preparation of the Company’s condensed consolidated financial statements requires the use of estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amount of income and expenses during the period. The Company bases its estimates and assumptions on historical experience and other factors that it believes to be reasonable under the circumstances. The Company evaluates its estimates and assumptions on an ongoing basis. The actual results may differ from these estimates. On an on-going basis, management evaluates it s estimates, primarily those related to: (1) evaluation of costs and measure of progress of the development activities conducted as part of the collaboration agreement with Nestlé Health Science, (2) research tax credits, (3) assumptions used in the valuation of right-of-use assets—operating lease, (4) impairment of right-of-use assets related to leases and property, plant and equipment, (5) recoverability of the Company’s net deferred tax assets and related valuation allowance, (6) assumptions used in the valuation model to determine the fair value and vesting conditions of share-based compensation plan, and (7) estimate of contingencies. Going concern Since its inception, the Company has primarily funded its operations with equity financings, and, to a lesser extent, public assistance aimed at supporting innovation and payments associated with research tax credits ( Crédit d’Impôt Recherche ). The Company does not generate product revenue and continues to prepare for the potential launch of its first product in the United States and in the European Union, if approved. Following receipt of a Complete Response Letter (“CRL”) from the U.S. Food and Drug Administration (“FDA”) in connection with its BLA for Viaskin ™ Peanut, in August 2020, the Company scaled down its other clinical programs and pre-clinical spend to focus on Viaskin ™ Peanut. The Company also initiated a global restructuring plan in June 2020 to provide operational latitude to progress the clinical development and regulatory review of Viaskin ™ Peanut in the United States and European Union. Based on the Company’s plans to address the guidance received from the FDA in January 2021 and additional feedback received in October 2021 regarding the protocol for STAMP (Safety, Tolerability and Adhesion of Modified Patches), and its expected cost savings from implementation of the global restructuring plan, the Company expects that its balance of cash and cash equivalents of $98.2 million as of September 30, 2021 will be sufficient to fund its operations into the third quarter of 2022. As of the date of the filing, the Company’s available cash is not projected to be sufficient to support its operating plan for the next 12 months. As such, there is substantial doubt regarding the Company’s ability to continue as a going concern. The Company intends to seek additional capital as it prepares for the launch of Viaskin Peanut, if approved, and continues other research and development efforts. The Company may seek to finance its future cash needs through a combination of public or private equity or debt financings, collaborations, license and development agreements and other forms of non-dilutive financings. The Company cannot guarantee that it will be able to obtain the necessary financing to meet its needs or to obtain funds at attractive terms and conditions, including as a result of disruptions to the global financial markets due to the ongoing COVID-19 pandemic. The ongoing COVID-19 pandemic has already caused extreme volatility and disruptions in the capital and credit markets. A severe or prolonged economic downturn could result in a variety of risks to the Company, including reduced ability to raise additional capital when needed or on acceptable terms, if at all. If the Company is not successful in its financing objectives, the Company could have to scale back its operations, notably by delaying or reducing the scope of its research and development efforts, or obtain financing through arrangements with collaborators or others that may require the Company to relinquish rights to its product candidates that the Company might otherwise seek to develop or commercialize independently. These interim financial statements have been prepared assuming the Company will continue as a going concern. The going concern assumption contemplates the realization of assets and satisfaction of liabilities in the normal course of business. However, substantial doubt about the Company’s ability to continue as a going concern exists. Accounting Pronouncements adopted in 2021 Effective January 1, 2021, the Company adopted ASU 2019-12, Income Taxes (Topic 740)—Simplifying the Accounting for Income Taxes, which is intended to simplify accounting for income taxes. It removes certain exceptions to the general principles in Topic 740 and amends existing guidance to improve consistent application. The adoption of ASU 2019-12 did not have a material impact on the Company’s financial position or results of operations. Accounting Pronouncements issued not yet adopted In June 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-13—Financial Instruments—Credit losses, which replaces the incurred loss impairment methodology for financial instruments in current U.S. GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The FASB has issued ASU 2019-10 which has resulted in the postponement of the effective date of the new guidance for eligible smaller reporting companies to the fiscal year beginning January 1, 2023. The guidance must be adopted using a modified-retrospective approach and a prospective transition approach is required for debt securities for which an other-than-temporary impairment had been recognized before the effective date. The Company is currently evaluating the impact of the guidance on its Consolidated Financial Statements. The Company does not expect this new standard will have a material impact on its consolidated financial statements. Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s Consolidated Financial Statements upon adoption.