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Collaboration and Licensing Agreements (Tables) | 12 Months Ended
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Dec. 31, 2023
Collaboration and Licensing Agreements [Abstract] |
Schedule of Deferred Revenue Balances | The following tables present changes in our current and non-current deferred revenue balances during the reporting period, which are all attributable to the 2017 Kyowa Kirin Agreement (in thousands):
| 2023 |  | 2022
| Current |  | Non-Current |  | Current |  | Non-Current
Balance at January 1, | $ | 4,211 |  | $ | 9,025 |  | $ | — |  | $ | 4,727
Amounts invoiced as prepayments for product supply | 1,547 |  | 5,629 |  | 250 |  | 8,259
Decrease for revenue recognized for product supply | (4,586) |  | — |  | — |  | —
Reclassify amounts to be recognized in the next twelve months | 6,010 |  | (6,010) |  | 3,961 |  | (3,961)
Balance at December 31, | $ | 7,182 |  | $ | 8,644 |  | $ | 4,211 |  | $ | 9,025

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 + Details
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