Common Stock - Summary of Outstanding Warrants (Detail)	6 Months Ended
Common Stock - Summary of Outstanding Warrants (Detail)	Jun. 30, 2026 $ / shares shares
Pre-Funded Warrants Issued in August 2020 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable \| shares	142,857
Exercise price per Share \| $ / shares	$ 0.001
Warrants Issued in November 2022 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable \| shares	4,093,141
Exercise price per Share \| $ / shares	$ 4.500
Expiration Date	2029-11
Warrants Issued in June 2025 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable \| shares	16,298,166
Exercise price per Share \| $ / shares	$ 3.000
Expiration Date	2030-06
Warrants Issued in April 2026 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable \| shares	49,518,569
Exercise price per Share \| $ / shares	$ 3.51
Pre-Funded Warrants Issued in April 2026 [Member]
Class of Warrant or Right [Line Items]
Total Outstanding and Exercisable \| shares	100,500
Exercise price per Share \| $ / shares	$ 0.001