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Stockholder's Equity - Schedule of Common Stock Reserved for Future Issuance (Detail) - shares	Jun. 30, 2023	Dec. 31, 2022
Class Of Stock [Line Items]
Common stock reserved	9,187,093	8,152,093
Common stock reserved	1,310,487
Common stock reserved	47,132,970	50,174,938
Stock Options Issued and Outstanding [Member]
Class Of Stock [Line Items]
Common stock reserved	9,187,093	8,152,093
Stock Options Reserved for 2020 Incentive Award Plan [Member]
Class Of Stock [Line Items]
Common stock reserved	1,310,487	478,109
Unvested Restricted Stock Units Outstanding [Member]
Class Of Stock [Line Items]
Common stock reserved	660,031	550,236
Common Stock Reserved for Employee Stock Purchase Plan [Member]
Class Of Stock [Line Items]
Common stock reserved	1,401,331	994,257
2022 Employment Inducement Award Plan [Member]
Class Of Stock [Line Items]
Common stock reserved	1,413,400	1,610,600
Pre-Funded Warrants [Member]
Class Of Stock [Line Items]
Common stock reserved	22,113,649	24,696,206
Common Warrants [Member]
Class Of Stock [Line Items]
Common stock reserved	8,427,508	8,427,508
2021 ATM Program [Member]
Class Of Stock [Line Items]
Common stock reserved	2,619,471	5,265,929

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Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of options outstanding, including both vested and non-vested options.

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