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Stock-based Compensation - Expense Related to Stock Options and Stock Awards (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense related to stock options	$ 3,346	$ 2,624
Research and development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense related to stock options	988	873
Selling, general and administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense related to stock options	$ 2,358	$ 1,751

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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