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SUPPLEMENTAL BALANCE SHEET DISCLOSURES - Prepaid expenses and other current assets (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
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SUPPLEMENTAL BALANCE SHEET DISCLOSURES |  |
Prepaid expenses | $ 454 | $ 689
Inventory related | 313 | 333
Deferred offering costs | 7 | 140
Total prepaid expenses and other current assets | $ 774 | $ 1,162

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