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Selected Balance Sheet Information - Schedule of Prepaid expenses and other current assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Selected Balance Sheet Information        
Prepaid clinical research organizations $ 2,293     $ 458
Prepaid manufacturing expenses 418      
Prepaid insurance 637     803
Receivable from prior owner 144      
Prepaid consulting, subscriptions and other expenses 155     272
VAT receivable 87      
Total $ 3,734 $ 2,241 $ 2,622 $ 1,533