Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Schedule Of Significant Accounting Policies [Line Items]
Accumulated other comprehensive income to foreign currency translation	$ 900,000	$ 800,000
Allowance for credit loss	0	0
Impairment of inventory	500,000	1,400,000
Impairment of intangible assets	$ 0	$ 20,699,000
Pre Funded Warrants to purchase common stock	3,272,727
DEXYCU [Member]
Schedule Of Significant Accounting Policies [Line Items]
Impairment of intangible assets	$ 20,700,000
Minimum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Accounts receivable standard payment terms	30 days
Estimated useful lives of assets	3 years
Maximum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Accounts receivable standard payment terms	60 days
Estimated useful lives of assets	5 years
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Alimera Sciences, Inc. [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk	67.80%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | ASD Specialty Healthcare LLC [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		57.10%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | McKesson Specialty Care Distribution LLC [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		30.20%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Ocumension Therapeutics [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk	15.70%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Alimera Sciences, Inc. [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk	73.20%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | ASD Specialty Healthcare LLC [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		51.10%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | McKesson Specialty Care Distribution LLC [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk		39.50%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Besse Medical [Member]
Schedule Of Significant Accounting Policies [Line Items]
Percentage of concentration risk	17.20%