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Selected Balance Sheet Information - Schedule of Prepaid expenses and other current assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Selected Balance Sheet Information    
Prepaid manufacturing expenses $ 475 $ 491
Prepaid consulting, subscriptions and other expenses 271 180
Prepaid insurance 233 496
Prepaid clinical research organizations 213 1,119
VAT receivable 171 128
Total $ 1,363 $ 2,414