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Product Revenue, Net (Tables) | 9 Months Ended
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Sep. 30, 2022
Revenue from Contract with Customer [Abstract] |
Schedule of Chargebacks, Discounts and Reserve Balances | The activities and ending reserve balances for each significant category of discounts and allowances, which constitute variable consideration, were as follows (in thousands):
| Discounts and Chargebacks |  | Rebates |  | Other Fees, Copay and Returns |  | Total
Balance as of December 31, 2021 | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Activity related to 2022 sales | 358 |  |  | 1,158 |  |  | 1,115 |  |  | 2,631 |
Credits/deductions issued | (250) |  |  | (438) |  |  | (576) |  |  | (1,264) |
Balance as of September 30, 2022 | $ | 108 |  |  | $ | 720 |  |  | $ | 539 |  |  | $ | 1,367 |

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