Stockholders' (Deficit) Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares |
Jun. 30, 2019 |
Dec. 31, 2018 |
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Temporary Equity [Line Items] | ||
Reserved common stock | 7,540,249 | 6,250,381 |
Common Stock | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 3,903,653 | 3,111,718 |
Common Stock Awards Issued And Outstanding | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 458,190 | 311,240 |
2004 and 2018 Equity Incentive Plan | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 2,717,022 | 2,525,610 |
2018 Employee Stock Purchase Plan | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 389,571 | 230,000 |
Warrants to Purchase Common Stock | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 71,813 | 71,813 |
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- Definition Aggregate number of common shares reserved for future issuance. 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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