Nature of Business	12 Months Ended
Nature of Business	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business Ocugen, Inc., together with its wholly owned subsidiaries ("Ocugen" or the "Company"), is a biotechnology company focused on discovering, developing, and commercializing novel gene and cell therapies, biologics and vaccines that improve health and offer hope for patients across the globe. The Company is headquartered in Malvern, Pennsylvania, and manages its business as one operating segment. Refer to Note 17 for additional information. Going Concern The Company has incurred recurring net losses since inception and has funded its operations to date through the sale of common stock, warrants to purchase common stock, the issuance of convertible notes and debt, and grant proceeds. The Company incurred net losses of approximately $67.8 million and $54.1 million for the years ended December 31, 2025 and 2024, respectively. As of December 31, 2025, the Company had an accumulated deficit of $408.1 million and cash totaling $18.6 million. This amount will not be sufficient to fund the Company's operations over the next 12 months after the date that the consolidated financial statements are issued. While the Company intends to continue its research, development, and commercialization efforts for its product candidates, it will require significant additional funding. If the Company is unable to obtain additional funding in the future and/or its research, development, and commercialization efforts require higher than anticipated capital, there will be a negative impact on the financial viability of the Company. The Company will continue to explore options to fund its operations through public and private placements of equity and/or debt, payments from potential strategic research and development arrangements, sales of assets, licensing and/or collaboration arrangements with pharmaceutical companies or other institutions, funding from the government, or funding from other third parties. Such financing and funding may not be available at all, or on terms that are favorable to the Company. While management believes that it has a plan to fund operations, its plan may not be successfully implemented. If the Company cannot obtain the necessary funding, it will need to delay, scale back, or eliminate some or all of its research and development programs and commercialization efforts; consider other various strategic alternatives, including a merger or sale; or cease operations. In August 2025, the Company successfully completed a registered direct offering, generating $18.5 million in net proceeds from the sale of its common stock. In January 2026, the Company raised an additional $20.8 million in net proceeds through a underwritten registered direct offering of common shares. Although these capital infusions have strengthened the Company’s liquidity, management maintains that, according to the current operational strategies and forecasts, further funding will be necessary to fulfill obligations and continue operating for at least the next twelve months after the consolidated financial statements are issued. As a result of these factors, together with the anticipated continued spending that will be necessary to continue to research, develop, and commercialize the Company’s product candidates, there is substantial doubt about the Company’s ability to continue as a going concern within one year after the date that these consolidated financial statements are issued. The consolidated financial statements do not contain any adjustments that might result from the resolution of any of the above uncertainties.