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Accounts Payable and Accrued Expenses - Accrued expenses and other current liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Accounts Payable and Accrued Expenses    
Professional and consulting fees $ 58 $ 87
Other 13 6
Accrued expenses and other current liabilities, Total $ 71 $ 93