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Warrants	12 Months Ended
Warrants	Dec. 31, 2022
Warrants and Rights Note Disclosure [Abstract]
Warrants	Warrants Canada Warrants In July 2021, the Company entered into a consulting agreement with regard to the Company's Canadian operations (the "Canada Consulting Agreement"). Compensation under the Canada Consulting Agreement included the issuance of warrants to purchase up to 0.2 million shares of the Company's common stock (the "Canada Warrants") and cash payments of up to $3.0 million, both dependent upon the achievement of certain milestones related to COVAXIN. The Canada Warrants were issued on July 15, 2021, have an exercise price of $6.36 per share, and were accounted for in accordance with ASC 718. The Canada Consulting Agreement terminates on July 15, 2023 and the Canada Warrants terminate on July 15, 2031, unless earlier terminated in accordance with their terms. As of December 31, 2022 and 2021, all of the Canada Warrants were outstanding and unvested. OpCo Warrants Beginning in 2016, OpCo issued warrants to purchase the Company's common stock (the "OpCo Warrants"). As of December 31, 2022 and 2021, 0.6 million OpCo Warrants were outstanding. As of December 31, 2022, the outstanding OpCo Warrants had a weighted-average exercise price of $6.23 per share and expire between 2026 and 2027.