Stockholders' Equity - Shares Reserved for Future Issuance (Details) - shares	Dec. 31, 2023	Dec. 31, 2022
Reserved for Future Issuance
Number of shares reserved for future issuance	23,387,610	10,076,610
Warrants for the purchase of common stock
Reserved for Future Issuance
Number of shares reserved for future issuance	9,271,689	1,530,176
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	5,334,301	1,013,520
Series X Preferred Stock
Reserved for Future Issuance
Number of shares reserved for future issuance	5,184,591	5,242,501
Options outstanding to purchase common stock
Reserved for Future Issuance
Number of shares reserved for future issuance	3,553,969	2,253,431
Shares reserved for the employee stock purchase plan
Reserved for Future Issuance
Number of shares reserved for future issuance	43,060	36,982