Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Payables And Accruals [Abstract]
Personnel costs	$ 3,057	$ 7,321
Clinical trial costs	2,016	753
Professional fees	482	712
Sales chargebacks, rebates and other revenue reserves	4,054	2,974
Commissions due to DEXYCU commercial partner	1,573	1,518
Other	1,147	1,144
Accrued expenses	$ 12,329	$ 14,422