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Schedule of Accounts Receivable, Net (Detail) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Accounts Receivable [Line Items]    
Total accounts receivable, net $ 16,801,000 $ 4,739,000
Allowance for credit losses 0  
Commercial product sales    
Accounts Receivable [Line Items]    
Accounts receivable, gross 19,359,000 7,939,000
Wholesaler distribution fees and prompt pay discounts (2,536,000) (1,696,000)
Reserve for returns (4,108,000) (2,797,000)
Total accounts receivable, net 12,715,000 3,446,000
Collaborations and services    
Accounts Receivable [Line Items]    
Accounts receivable, gross 4,086,000 2,060,000
Total accounts receivable, net $ 4,086,000 1,293,000
Allowance for credit losses   $ (767,000)