Income Taxes - Reconciliation of Federal Statutory Income Tax Rate and Effective Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%
Change in valuation allowance	13.00%	(19.00%)
State income taxes, net of federal benefit	2.00%	1.00%
Stock option cancellation impact	(38.00%)
Impact of state tax rate change	3.00%
Stock compensation and other permanent items	(1.00%)	(1.00%)
Other		(2.00%)