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Stock Option Plan - Common Stock Reserved For Future Issuance (Details) | Dec. 31, 2019 shares
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common stock reserved for future issuance (in shares) | 3,240,811
Warrants to purchase common stock |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common stock reserved for future issuance (in shares) | 461,273
Common stock option grants issued and outstanding |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common stock reserved for future issuance (in shares) | 1,375,542
Common shares available for grant under the stock option plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common stock reserved for future issuance (in shares) | 1,283,996
Employee Stock Purchase Plan |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Common stock reserved for future issuance (in shares) | 120,000

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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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