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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]    
Clinical trial expenses $ 1,630 $ 1,630
Insurance premiums 109 123
Professional services 91 121
Other 125 95
Total prepaid expenses and other current assets $ 1,955 $ 1,969