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Government Grant Funding and Potential Repayment Commitments Under Recoverable Cash Advance Grants (RCAs) - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Dec. 03, 2019
Jul. 20, 2017
Mar. 31, 2022
Sep. 30, 2021
Dec. 31, 2021
Mar. 31, 2021
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Research and development expenses     $ 1,500,000      
Percentage of royalty on revenue     30.00%   0.12%  
Grant repayable     $ 6,042,000     $ 6,164,000
Accrued Expenses and Other Current Liabilities            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Grant repayable     $ 143,000      
RCA-1            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Recoverable cash advance   $ 21,000,000.0        
Percentage of royalty on revenue     0.33%      
Grant repayable     $ 5,173,000     5,278,000
RCA-2            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Recoverable cash advance $ 4,800,000          
Percentage of royalty on revenue     0.15%      
Grant repayable     $ 869,000     $ 886,000
Royalty accruals     900,000      
RCA-1 and RCA-2            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Percentage of repayment amount received under grant       30.00%    
Research And Development And Future Sales            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Grant repayable     $ 0      
Minimum            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Percentage of grant reimburse of actual qualifying expenditures     55.00%      
Minimum | RCA-1 and RCA-2            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Term of repayment amount received under grant       2023    
Maximum            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Percentage of grant reimburse of actual qualifying expenditures     100.00%      
Maximum | RCA-1 and RCA-2            
Research And Development Arrangement Contract To Perform For Others [Line Items]            
Term of repayment amount received under grant       2042