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Net loss per share
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Net loss per share Net loss per shareThe Company excluded the following potentially dilutive shares from diluted net loss per share as the effect would have been anti-dilutive for all periods presented:
 Three Months Ended
September 30,
Nine Months Ended
September 30,
 2023202220232022
Outstanding stock options895,066 1,883,179 895,066 1,883,179 
Restricted stock units5,750 90,850 5,750 90,850 
Shares issuable under 2020 ESPP1,492 12,384 1,492 12,384 
 902,308 1,986,413 902,308 1,986,413