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Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses and Other Liabilities (Detail) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Accrued Liabilities and Other Liabilities [Abstract]    
Accrued compensation and related expenses $ 1,061 $ 1,411
Accrued severance   104
Accrued clinical 472 454
Accrued professional services 125 167
Accrued other 13 83
Total accrued expenses and other liabilities $ 1,671 $ 2,219