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Stockholders' Equity - Shares Reserved for Future Issuance (Details) - shares	Dec. 31, 2024	Dec. 31, 2023
Reserved for Future Issuance
Number of shares reserved for future issuance	29,301,162	23,387,610
Reserve under the 2015 Stock Incentive Plan and the 2022 Inducement Stock Incentive Plan
Reserved for Future Issuance
Number of shares reserved for future issuance	8,849,170	5,334,301
Warrants for the purchase of common stock
Reserved for Future Issuance
Number of shares reserved for future issuance	8,367,373	9,271,689
Options outstanding to purchase common stock
Reserved for Future Issuance
Number of shares reserved for future issuance	6,850,889	3,553,969
Series X Preferred Stock
Reserved for Future Issuance
Number of shares reserved for future issuance	5,184,591	5,184,591
Reserved for the employee stock purchase plan
Reserved for Future Issuance
Number of shares reserved for future issuance	49,139	43,060

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