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SUPPLEMENTAL BALANCE SHEET DISCLOSURES - Prepaid expenses and other current assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Supplemental Balance Sheet Disclosures    
Prepaid expenses $ 588 $ 817
Inventory related 330 399
Total prepaid expenses and other current assets $ 918 $ 1,216