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Transactions with BioXcel LLC (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Transactions with BioXcel
Due to related parties	$ 380		$ 422
BioXcel LLC
Transactions with BioXcel
Service charges	241	$ 376
Due to related parties	273
BioXcel LLC | Research and development expense
Transactions with BioXcel
Service charges	215	306
BioXcel LLC | Selling, general and administrative
Transactions with BioXcel
Service charges	$ 26	$ 70

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