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Common Stock - Shares Reserved for Future Issuance (Details)
Sep. 30, 2022
shares
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 4,232,534
Outstanding stock options  
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 3,799,573
2021 Employee stock Purchase Plan | Outstanding stock options  
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 162,630
2014 Equity Incentive Plan | Common stock options available for future grant:  
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 43,311
2017 Inducement Equity Incentive Plan | Common stock options available for future grant:  
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 46,250
2019 Omnibus Equity Incentive Plan | Common stock options available for future grant:  
Class of Stock [Line Items]  
Total common shares reserved for future issuance (in shares) 180,770