Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares |
Mar. 31, 2020 |
Dec. 31, 2019 |
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Temporary Equity [Line Items] | ||
Reserved common stock | 8,693,572 | 7,357,234 |
Common Stock | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 5,145,635 | 3,872,664 |
Common Stock Awards Issued And Outstanding | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 767,016 | 335,799 |
2004 and 2018 Equity Incentive Plan | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 2,144,785 | 2,750,416 |
2018 Employee Stock Purchase Plan | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 483,066 | 326,542 |
Warrants to Purchase Common Stock | ||
Temporary Equity [Line Items] | ||
Reserved common stock | 153,070 | 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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