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Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Payables and Accruals [Abstract]    
Accrued research and development expenses $ 1,249 $ 786
Accrued employee bonus compensation 498 1,628
Other accrued expenses 1,543 1,313
Accrued severance 28 688
Accrued co-pay rebates 760 595
Accrued other rebates 697 618
Total accrued expenses $ 4,775 $ 5,628