Marketable Securities - Summary of Amortized Cost and Estimated Fair Values of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost, Current marketable securities	$ 5,953	$ 7,938
Gross Unrealized Holding Gains, Current marketable securities		4
Gross Unrealized Holding Losses, Current marketable securities	(1)
Carrying Value, Current marketable securities	5,952	7,942
Cash Equivalents
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	6,075	8,448
Carrying Value	6,075	8,448
Money Market Funds \| Cash Equivalents
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	4,079	8,448
Carrying Value	4,079	8,448
U.S Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost, Current marketable securities	5,953	7,938
Gross Unrealized Holding Gains, Current marketable securities		4
Gross Unrealized Holding Losses, Current marketable securities	(1)
Carrying Value, Current marketable securities	5,952	$ 7,942
U.S Treasury Securities \| Cash Equivalents
Schedule Of Available For Sale Securities [Line Items]
Amortized Cost	1,996
Carrying Value	$ 1,996

Available for sale debt securities accumulated gross unrealized gain before tax current.

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