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Transactions with BioXcel LLC (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2023
Transactions with BioXcel |  |  |  |  |  |
Research and development |  | $ 8,032 | $ 26,973 | $ 19,433 | $ 54,773 |
Selling, general and administrative |  | 9,450 | 25,872 | 22,715 | 49,467 |
Total operating expenses |  | 18,400 | 52,871 | 43,145 | 104,274 |
BioXcel LLC |  |  |  |  |  |
Transactions with BioXcel |  |  |  |  |  |
Monthly agreement option fees | $ 18 |  |  |  |  |
Maximum milestone (as as percent) | 3.00% |  |  |  |  |
BioXcel LLC | Development milestones |  |  |  |  |  |
Transactions with BioXcel |  |  |  |  |  |
Potential milestone payments | $ 10,000 |  |  |  |  |
BioXcel LLC | Sales milestones |  |  |  |  |  |
Transactions with BioXcel |  |  |  |  |  |
Potential milestone payments | $ 30,000 |  |  |  |  |
Related Party |  |  |  |  |  |
Transactions with BioXcel |  |  |  |  |  |
Other current liabilities |  | 107 |  | 107 |  | $ 107
Related Party | BioXcel LLC |  |  |  |  |  |
Transactions with BioXcel |  |  |  |  |  |
Research and development |  | 292 | 414 | 478 | 629 |
Selling, general and administrative |  | 90 | 60 | 138 | 86 |
Total operating expenses |  | 382 | $ 474 | 616 | $ 715 |
Other current liabilities |  | $ 0 |  | $ 0 |  |

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