Share-Based Compensation - Share based compensation expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation expense	$ 468	$ 1,615
Research and development
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation expense	68	712
General and administrative
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation expense	$ 400	$ 903

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details