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Significant Accounting Policies - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Aug. 19, 2022
Jan. 14, 2022
Oct. 12, 2021
Mar. 19, 2021
Jan. 25, 2021
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Oct. 04, 2021
Schedule Of Significant Accounting Policies [Line Items]                        
Upfront nonrefundable payment         $ 1,000,000.0              
Loan in principal amount         $ 4,000,000.0              
Issuance and bore interest rate         6.00%              
Reimbursement payment       $ 14,000,000.0                
Collaboration agreement amount       25,000,000.0                
Development payments       10,000,000.0                
Deferred collaboration funding           $ 10,600,000     $ 10,600,000      
Deferred collaboration funding, current           10,598,201     10,598,201   $ 15,825,938  
Cash in excess of FDIC insured limit           6,100,000     6,100,000   12,500,000  
Preclinical or clinical study expense included in accounts payable and accrued expenses.           1,000,000.0     1,000,000.0   200,000  
Income tax expense (benefit)           0 $ 0   0 $ 0    
Uncertain tax positions, accruals           0 0   0 0    
Accruals for interest or penalties related to income tax matters           $ 0 $ 0   $ 0 $ 0    
ASU No. 2020-06                        
Schedule Of Significant Accounting Policies [Line Items]                        
Change in accounting principle, accounting standards update, adopted           true     true      
Change in accounting principle, accounting standards update, adoption date           Mar. 31, 2021     Mar. 31, 2021      
ASU No. 2021-10                        
Schedule Of Significant Accounting Policies [Line Items]                        
Change in accounting principle, accounting standards update, adopted           true     true      
Change in accounting principle, accounting standards update, adoption date           Dec. 31, 2021     Dec. 31, 2021      
Change in accounting principle, accounting standards update, immaterial effect           true     true      
ASU No. 2021-04                        
Schedule Of Significant Accounting Policies [Line Items]                        
Change in accounting principle, accounting standards update, adopted           true     true      
Change in accounting principle, accounting standards update, adoption date           Mar. 31, 2022     Mar. 31, 2022      
Change in accounting principle, accounting standards update, immaterial effect           true     true      
Maximum                        
Schedule Of Significant Accounting Policies [Line Items]                        
Cash, FDIC insured amount           $ 250,000     $ 250,000      
Bridge Loan                        
Schedule Of Significant Accounting Policies [Line Items]                        
Minimum cash balance required by the loan covenants $ 1,500,000                      
Bridge Loan | 20 Days Following Liquidity Trigger Date                        
Schedule Of Significant Accounting Policies [Line Items]                        
Minimum cash balance required by the loan covenants 4,000,000.0                      
Bridge Loan | 40 Days Following Liquidity Trigger Date                        
Schedule Of Significant Accounting Policies [Line Items]                        
Minimum cash balance required by the loan covenants $ 6,500,000                      
Bridge Loan | Minimum | 20 Days Following Liquidity Trigger Date                        
Schedule Of Significant Accounting Policies [Line Items]                        
Number of days required for cash balance 20 days                      
Bridge Loan | Minimum | 40 Days Following Liquidity Trigger Date                        
Schedule Of Significant Accounting Policies [Line Items]                        
Number of days required for cash balance 40 days                      
Relief                        
Schedule Of Significant Accounting Policies [Line Items]                        
Non-cash reduction recognized in secured loan                 4,000,000.0      
Collaboration Agreement | Second Development Payment                        
Schedule Of Significant Accounting Policies [Line Items]                        
Deferred collaboration funding           10,600,000     10,600,000      
Deferred collaboration funding, current           10,600,000     10,600,000      
Deferred collaboration funding, cash received           $ 35,000,000.0     35,000,000.0      
Revenue recognized                     $ 1,300,000  
Offset to research and development expenses                 12,900,000      
Offset to general and administrative expenses                 $ 10,300,000      
Collaboration Agreement | Relief                        
Schedule Of Significant Accounting Policies [Line Items]                        
Cash payment received       10,000,000.0       $ 10,000,000.0        
Reimbursement payment       14,000,000.0 $ 14,000,000.0              
Repayment of outstanding balance of prior loan and interest       4,000,000.0 $ 4,000,000.0              
Development and commercial launch costs       $ 20,000,000.0                
Net profit split ratio based on territory       60.00% 60.00%              
Percentage of royalty net sales received       15.00% 15.00%              
Milestone payment to be received       $ 6,000,000.0 $ 6,000,000.0              
Potential proceeds from development payments subject to new drug application                       $ 10,000,000.0
Proceeds from first tranche of development payments subject to new drug application     $ 5,000,000.0                  
Percentage of development and commercialization services       60.00%                
Percentage of payment net profit territory       60.00%                
Upfront non-refundable payment received         1,000,000.0              
Collaboration Agreement | Relief | Maximum                        
Schedule Of Significant Accounting Policies [Line Items]                        
Development and commercial launch costs         20,000,000.0              
Development payments       $ 20,000,000.0                
Collaboration Agreement | Relief | Second Development Payment                        
Schedule Of Significant Accounting Policies [Line Items]                        
Potential proceeds from development payments subject to new drug application                       $ 10,000,000.0
Proceeds from first tranche of development payments subject to new drug application     5,000,000.0                  
Waiver and Agreement | Relief | Second Development Payment                        
Schedule Of Significant Accounting Policies [Line Items]                        
Proceeds from first tranche of development payments subject to new drug application   $ 5,000,000.0 $ 5,000,000.0                  
Proposed Collaboration and License Agreement                        
Schedule Of Significant Accounting Policies [Line Items]                        
Upfront non-refundable payment received       $ 1,000,000.0                
Proposed Collaboration and License Agreement | Relief                        
Schedule Of Significant Accounting Policies [Line Items]                        
Upfront non-refundable payment received         $ 1,000,000.0