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v3.21.2

Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Revenue |  |  |  |  |  |
Revenue, contract liabilities | $ 0 |  |  | $ 3,400 |  |
Revenues | 153 | $ 668 |  | 4,317 | $ 3,633 |
Contract assets | 0 |  |  | 0 |  | $ 0
Contract liability | 601 |  |  | 601 |  | $ 3,386
Product development and licensing agreements |  |  |  |  |  |
Revenue |  |  |  |  |  |
Revenues |  | 12 |  | 29 | 2,297 |
Contracts and grants |  |  |  |  |  |
Revenue |  |  |  |  |  |
Revenues | 153 | 656 |  | 4,288 | 1,336 |
Rockefeller | Product development and licensing agreements |  |  |  |  |  |
Revenue |  |  |  |  |  |
Revenue, contract liabilities |  |  | $ 1,800 |  |  |
Rockefeller University and Duke University | Contracts and grants |  |  |  |  |  |
Revenue |  |  |  |  |  |
Revenues | 100 | 300 |  | 4,000 | 900 |
National Institute of Health |  |  |  |  |  |
Revenue |  |  |  |  |  |
Revenues | $ 0 | $ 300 |  | $ 300 | $ 300 |

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