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Common Stock (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Class of Stock [Line Items]    
Common stock authorized (in shares) 200,000,000 200,000,000
Common stock par value (in dollars per share) $ 0.001 $ 0.001
Dividends declared cash $ 0 $ 0
Common stock reserved for future issuance (in shares) 7,509,288 6,733,868
Shares available for future grant under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 2,161,317 1,314,502
Outstanding options under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 2,036,844 2,208,341
Outstanding options under the 2023 Inducement Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 380,424 380,424
Outstanding restricted stock units under the 2021 Equity Incentive Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 2,252,671 2,430,803
Common stock available for Employee Stock Purchase Plan    
Class of Stock [Line Items]    
Common stock reserved for future issuance (in shares) 678,032 399,798