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Schedule of Accounts Receivable, Net (Detail) - USD ($) | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Accounts Receivable [Line Items] |  |
Total accounts receivable, net | $ 23,493,000 | $ 4,739,000
Allowance for doubtful accounts | 0 |
Commercial product sales |  |
Accounts Receivable [Line Items] |  |
Accounts receivable, gross | 22,971,000 | 7,939,000
Wholesaler distribution fees and prompt pay discounts | (2,863,000) | (1,696,000)
Reserve for returns | (3,135,000) | (2,797,000)
Total accounts receivable, net | 16,973,000 | 3,446,000
Collaborations and services |  |
Accounts Receivable [Line Items] |  |
Accounts receivable, gross | 6,520,000 | 2,060,000
Total accounts receivable, net | $ 6,520,000 | 1,293,000
Allowance for doubtful accounts |  | $ (767,000)

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