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Common Stock - Summary of Reserved Shares of Common Stock for Future Issuance (Details)	Sep. 30, 2020 shares
Class Of Stock [Line Items]
Total shares reserved	4,195,291
Options Available for Future Grants
Class Of Stock [Line Items]
Total shares reserved	2,420,840
2019 Equity Incentive Plan and 2015 Stock Plan | Options Issued and Outstanding
Class Of Stock [Line Items]
Total shares reserved	1,517,965
2019 Equity Incentive Plan | Restricted Stock Units Issued and Outstanding
Class Of Stock [Line Items]
Total shares reserved	56,500
2019 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Total shares reserved	199,986

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+ References

No definition available.

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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=120391452&loc=d3e13212-122682

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