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Commercial Services and Loan Agreements with Eversana - Additional Information (Detail) - Eversana Agreement [Member] - USD ($)
Jan. 21, 2020
Sep. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Commercial Services And Loan Agreements [Line Items]        
Unreimbursed commercialization cost   $ 21,400,000    
Agreement termination date Jun. 19, 2025      
Revolving Credit Facility [Member]        
Commercial Services And Loan Agreements [Line Items]        
Line of credit $ 5,000,000      
Line of credit facility, Interest rate 10.00%      
Borrowings     $ 3,000,000 $ 2,000,000
Gimoti [Member] | Minimum [Member]        
Commercial Services And Loan Agreements [Line Items]        
Percentage Of Product Profits 80.00%