Summary of Significant Accounting Policies - Net Loss per Share (Details) - shares |
3 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
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| Anti-dilutive securities | ||
| Total shares excluded from diluted net loss per share applicable to common stockholders | 5,695,219 | 3,753,025 |
| Stock options | ||
| Anti-dilutive securities | ||
| Total shares excluded from diluted net loss per share applicable to common stockholders | 4,616,395 | 3,753,025 |
| Unvested Restricted Stock | ||
| Anti-dilutive securities | ||
| Total shares excluded from diluted net loss per share applicable to common stockholders | 1,078,824 | |
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- 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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