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Collaboration and Licensing Agreements (Tables) | 9 Months Ended
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Sep. 30, 2022
Collaboration and Licensing Agreements |
Schedule of Changes in Deferred Revenue | The following tables present changes in our current and non-current deferred revenue balances during the reporting period. The September 30, 2022 deferred revenue balance is attributable entirely to the 2017 KKC Agreement, while the current September 30, 2021 deferred revenue balance is attributable to the 2019 KKC Agreement and the non-current September 30, 2021 deferred revenue balance is attributable to the 2017 KKC Agreement (in thousands):
Deferred revenue - current | 2022 |  | 2021
Balance at January 1, | $ | — |  |  | $ | 4,177 |
Increases due to amounts reclassified from non-current, to be recognized in the next twelve months | 3,961 |  |  |
Increases to amounts invoiced, for which cash has not yet been received | 42 |  |  | — |
Decreases due to revenue recognized in the period for which cash has been received | — |  |  | (3,650) |
Balance at September 30, | $ | 4,003 |  |  | $ | 527 |
Deferred revenue - non-current | 2022 |  | 2021
Balance at January 1, | $ | 4,727 |  |  | $ | — |
Increases due to cash received during the period | 7,694 |  |  | 2,947 |
Increases to amounts invoiced, for which cash has not yet been received | 100 |  |  | — |
Decreases due to amounts reclassified as current, to be recognized in the next twelve months | (3,961) |  |  | — |
Balance at September 30, | $ | 8,560 |  |  | $ | 2,947 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130551-203045 + Details
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