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Revenue Recognition - Summary of balances and activities in our contract asset account (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2023 USD ($)
Reclassification | $ 71,307 | [1]
Balance at End of Period | 71,307 |
CpG 1018 |  |
Balance at Beginning of Period | 71,965 | [2]
Additions (1) | 14,396 | [2]
Subtractions (2) | (13,175) | [2]
Reclassification | (71,307) | [1],[2]
Balance at End of Period | $ 1,879 | [2]
[1] | The Clover contract asset was reclassified to long term assets to reflect the timing of expected long term demand for CpG 1018 adjuvant for Clover Product. See Note 6 for further discussion.
[2] | The $1.9 million of contract asset is derived from our agreement with the DoD.

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