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Summary of Significant Accounting Policies - Net Loss Per Share (Details) - shares | 9 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022
Antidilutive common stock equivalents excluded from computation of diluted net loss per share |  |
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) | 8,837,897 | 9,010,625
Series X Preferred Stock |  |
Antidilutive common stock equivalents excluded from computation of diluted net loss per share |  |
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) | 5,184,591 | 5,242,501
Stock options |  |
Antidilutive common stock equivalents excluded from computation of diluted net loss per share |  |
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) | 3,321,448 | 2,237,948
Common stock warrants |  |
Antidilutive common stock equivalents excluded from computation of diluted net loss per share |  |
Anti-dilutive securities excluded from the calculation of diluted net loss per share (in shares) | 331,858 | 1,530,176

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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