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Subsequent Events - Additional Information (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2021
Aug. 06, 2021
Subsequent Event [Line Items]    
Description of payment terms The term loan amortization date is April 1, 2022; provided, however, if the Company raises $50M in funding on or prior to March 31, 2022, the term loan first payment date shall automatically be extended to September 1, 2022. Further, if the Company raised $50M on or prior to March 31, 2022 and an additional $50M on or prior to August 31, 2022, the term loan amortization shall automatically be extended to September 1, 2023. The term loan maturity date is March 1, 2023; provided, however, if Company achieves the funding milestones, the term loan maturity date shall automatically be extended to August 1, 2025. There is a final payment due of 5.75%.  
Forecast [Member] | Term Loan [Member]    
Subsequent Event [Line Items]    
Initial term loan   $ 25.0
Additonal tranche facility   $ 25.0