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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Legal and other professional services $ 3,204 $ 3,128
Compensation expense 1,897 3,584
Research and development projects 1,532 981
Other accrued liabilities 152 333
Accrued liabilities $ 6,785 $ 8,026