Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)					1 Months Ended	3 Months Ended		12 Months Ended	36 Months Ended
	Jul. 11, 2025 USD ($)	Jul. 11, 2024 USD ($)	Jul. 11, 2023 USD ($)	Jul. 11, 2022 USD ($)	Jul. 31, 2023 shares	Mar. 31, 2025 USD ($) Segment shares	Mar. 31, 2024 USD ($) shares	Dec. 31, 2024 USD ($)	Jul. 11, 2025 USD ($)	Mar. 31, 2021 USD ($)
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Maximum maturity period of cash and cash equivalent						three months
Maximum amortization period of compensation cost on straight line basis						3 years
Potential equivalent common stock excluded | shares						2,400,000	5,200,000
Number of operating segments | Segment						1
Asset acquisition equity interests issued or issuable number of shares issued | shares					1,414,688
Asset acquisition percentage of outstanding ordinary shares					11.26%
Allowance for expected credit losses, written off						$ 0		$ 0
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]						President and Chief Executive Officer [Member]
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description						The CODM uses consolidated operating margin (operating income divided by product revenue, net) and net income to assess financial performance and allocate resources.
Share Purchase Program [Member] | Common Stock [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Share repurchase program, authorized										$ 40,000,000
License Agreement For RUZURGI [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Minimum royalty	$ 3,000,000	$ 3,000,000	$ 3,000,000	$ 3,000,000					$ 3,000,000
Selling, General and Administrative Expenses [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Advertising Expense						$ 2,600,000	$ 3,900,000
Minimum [Member] | Furniture and Equipment [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						5 years
Minimum [Member] | Computer Equipment [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						3 years
Minimum [Member] | Leasehold Improvements [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						5 years
Maximum [Member] | Furniture and Equipment [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						7 years
Maximum [Member] | Computer Equipment [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						5 years
Maximum [Member] | Leasehold Improvements [Member]
Summary Of Basis Of Presentation And Significant Accounting Policies [Line Items]
Useful life of assets						10 years