Stockholders' Equity - Summary of Outstanding Common Stock Warrants (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 19, 2018
Class of Warrant or Right [Line Items]
Number of Common Shares	3,570,651	13,071,883	5,323,110
Common Stock Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares		7,904	7,904
Weighted Average Exercise Price per Share		$ 388.94	$ 388.94
Expiration Date	2024-11
2018 PIPE Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares			34,241
Weighted Average Exercise Price per Share			$ 30	$ 30
Expiration Date	2023-12
March 2022 Common Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares	1,255,346	1,929,066	4,000,000
Weighted Average Exercise Price per Share	$ 4.5	$ 4.5	$ 4.5
Expiration Date	2027-03
March 2022 Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares			1,280,965
Weighted Average Exercise Price per Share			$ 0.15
Expiration Date	2027-03
May 2023 Tranche A Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares		2,758,281
Weighted Average Exercise Price per Share		$ 0.01
Expiration Date	2026-11
May 2023 Tranche B Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares	2,065,305	6,750,000
Weighted Average Exercise Price per Share	$ 2.5	$ 2.5
Expiration Date	2026-11
May 2023 Tranche B Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares		451,632
Weighted Average Exercise Price per Share		$ 0.01
Expiration Date	2026-11
October 2023 Pre-funded Warrants [Member]
Class of Warrant or Right [Line Items]
Number of Common Shares	250,000	1,175,000
Weighted Average Exercise Price per Share	$ 0.01	$ 0.01