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Stockholders' Equity - Reserved for Future Issuance (Details) - shares | Dec. 31, 2022 | Dec. 31, 2021 | Apr. 16, 2019
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Common stock reserved for future issuance |  |  |
Stock options outstanding (in shares) | 882,892 | 933,051 |
Total (in shares) | 5,040,383 |  |
2019 Equity Incentive Plan |  |  |
Common stock reserved for future issuance |  |  |
Stock options outstanding (in shares) | 882,892 |  |
Shares authorized for future issuance (in shares) | 2,594,587 |  | 2,400,000
2019 Employee Stock Purchase Plan |  |  |
Common stock reserved for future issuance |  |  |
Shares authorized for future issuance (in shares) | 907,850 |  |
Restricted Stock Units |  |  |
Common stock reserved for future issuance |  |  |
Stock units outstanding (in shares) | 271,951 | 235,696 |
Restricted Stock Units | 2019 Equity Incentive Plan |  |  |
Common stock reserved for future issuance |  |  |
Stock units outstanding (in shares) | 271,951 |  |
Performance Stock Units |  |  |
Common stock reserved for future issuance |  |  |
Stock units outstanding (in shares) | 383,103 | 358,401 |
Performance Stock Units | 2019 Equity Incentive Plan |  |  |
Common stock reserved for future issuance |  |  |
Stock units outstanding (in shares) | 383,103 |  |

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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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