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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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Prepaid Expenses and Other Current Assets [Abstract] |  |
Research and development tax credit receivable | $ 974 | $ 2,933
Prepayments and VAT receivable | 433 | 792
Other current assets | 300 | 341
Prepaid expenses and other current assets | $ 1,707 | $ 4,066

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