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Prepaids and other current assets - Schedule of Prepaids and Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 30, 2024 | Dec. 31, 2023
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Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid consulting agreement | $ 732 | $ 3
Prepaid insurance | 2 | 72
Prepaid other | 65 | 0
Total prepaid expenses and other current assets | $ 799 | $ 75

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