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Warrants and Options - Summary of Warrants Issued to Purchase Common Stock (Detail) - $ / shares	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023	Dec. 31, 2022
Class Of Warrant Or Right [Line Items]
Exercised during the period	(75,000)	(482,647)	0
Outstanding	259,817	341,957	342,570
March 2023 Pre-Funded Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2023-03	2023-03
Term	perpetual	perpetual
Exercise Price Per Share	$ 0	$ 0
Exercised during the period	(75,000)	(425,834)	0
Outstanding	0	75,000	0
December 2022 Service and Performance Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2022-12	2022-12
Term	5 years	5 years
Exercise Price Per Share	$ 11.2	$ 11.2
Exercised during the period	0	0	0
Outstanding	1,000	1,000	1,000
October 2022 Service and Performance Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2022-10	2022-10
Term	5 years	5 years
Exercise Price Per Share	$ 16	$ 16
Exercised during the period	0	0	0
Outstanding	1,000	1,000	1,000
August 2022 Pre-Funded Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2022-08	2022-08
Term	perpetual	perpetual
Exercise Price Per Share	$ 0
Exercised during the period	0	(56,813)	0
Outstanding	0	0	56,813
January 2021 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2021-01	2021-01
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 159.6	$ 159.6
Exercised during the period	0	0	0
Outstanding	9,846	9,846	9,846
January 2021 Service and Performance Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date		2021-01
Term		2 years
Exercise Price Per Share		$ 123.2
Exercised during the period		0	0
Outstanding		0	188
December 2020 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-12	2020-12
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 9	$ 9
Exercised during the period	0	0	0
Outstanding	16,367	16,367	16,367
December 2020 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-12	2020-12
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 120	$ 120
Exercised during the period	0	0	0
Outstanding	49,100	49,100	49,100
December 2020 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-12	2020-12
Term	5 years	5 years
Exercise Price Per Share	$ 152.8	$ 152.8
Exercised during the period	0	0	0
Outstanding	3,274	3,274	3,274
July 2020 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-07	2020-07
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 9	$ 9
Exercised during the period	0	0	0
Outstanding	16,036	16,036	16,036
July 2020 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-07	2020-07
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 198.8	$ 198.8
Exercised during the period	0	0	0
Outstanding	802	802	802
May 2020 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-05	2020-05
Term	5 years	5 years
Exercise Price Per Share	$ 9	$ 9
Exercised during the period	0	0	0
Outstanding	9,946	9,946	9,946
May 2020 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-05	2020-05
Term	5 years	5 years
Exercise Price Per Share	$ 191.2	$ 191.2
Exercised during the period	0	0	0
Outstanding	24,863	24,863	24,863
May 2020 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2020-05	2020-05
Term	5 years	5 years
Exercise Price Per Share	$ 245.2	$ 245.2
Exercised during the period	0	0	0
Outstanding	1,741	1,741	1,741
March 2020 Service and Performance Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date		2020-03
Term		3 years
Exercise Price Per Share		$ 100
Exercised during the period		0	0
Outstanding			459
September 2019 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-09	2019-09
Term	5 years	5 years
Exercise Price Per Share	$ 379.2	$ 379.2
Exercised during the period	0	0	0
Outstanding	0	1,649	1,649
June 2019 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-06	2019-06
Term	5 years	5 years
Exercise Price Per Share	$ 251.6	$ 251.6
Exercised during the period	0	0	0
Outstanding	0	1,862	1,862
April 2019 Service and Performance Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-04	2019-04
Term	5 years	5 years
Exercise Price Per Share	$ 247.2	$ 247.2
Exercised during the period	0	0	0
Outstanding	0	3,629	3,629
June 2018 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date		2018-06
Term		5 years
Exercise Price Per Share		$ 502.8
Exercised during the period		0	0
Outstanding			1,741
March 2018 Placement Agent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date		2018-03
Term		5 years
Exercise Price Per Share		$ 1,662.4
Exercised during the period		0	0
Outstanding			376
January 2021 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2021-01	2021-01
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 125.2	$ 125.2
Exercised during the period	0	0	0
Outstanding	90,629	90,629	90,629
January 2021 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2021-01	2021-01
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 9	$ 9
Exercised during the period	0	0	0
Outstanding	7,831	7,831	7,831
September 2019 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-09	2019-09
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 300.8	$ 300.8
Exercised during the period	0	0	0
Outstanding	6,594	6,594	6,594
September 2019 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-09	2019-09
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 9	$ 9
Exercised during the period	0	0	0
Outstanding	9,892	9,892	9,892
June 2019 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date	2019-06	2019-06
Term	5 years 6 months	5 years 6 months
Exercise Price Per Share	$ 200	$ 200
Exercised during the period	0	0	0
Outstanding	10,896	10,896	10,896
March 2018 Warrants [Member]
Class Of Warrant Or Right [Line Items]
Issuance Date		2018-03
Term		5 years
Exercise Price Per Share		$ 429.2
Exercised during the period		0	0
Outstanding			16,036

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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