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Trade Receivables | 6 Months Ended
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Jun. 30, 2022
Receivables [Abstract] |
Trade Receivables | Trade Receivables Product Sales Receivables from product sales are recorded for amounts due to the Company related to sales of ORLADEYO and RAPIVAB. At June 30, 2022 and December 31, 2021, receivables related to sales of ORLADEYO were $39,587 and $27,384, respectively. At June 30, 2022 and December 31, 2021, receivables related to sales of RAPIVAB were $61 and $49, respectively. No reserve or allowance amounts were recorded as of June 30, 2022 and December 31, 2021, respectively. Collaborations Receivables from collaborations were as follows (in thousands):
| June 30, 2022
| Billed |  | Unbilled |  | Total
U.S. Department of Health and Human Services | $ | — |  |  | $ | 1,303 |  |  | $ | 1,303 |
Royalty receivables from partners | 540 |  |  | — |  |  | 540 |
Total receivables | $ | 540 |  |  | $ | 1,303 |  |  | $ | 1,843 |
| December 31, 2021
| Billed |  | Unbilled |  | Total
U.S. Department of Health and Human Services | $ | 5 |  |  | $ | 1,670 |  |  | $ | 1,675 |
Royalty receivables from partners | 305 |  |  | — |  |  | 305 |
Total receivables | $ | 310 |  |  | $ | 1,670 |  |  | $ | 1,980 |
As of both June 30, 2022 and December 31, 2021, the Company maintained a reserve of $701 related to royalties associated with Green Cross.

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