Stockholders' Equity - Registered Direct Offerings - Additional Information (Detail) - USD ($)					1 Months Ended		3 Months Ended				9 Months Ended		12 Months Ended
	Jul. 21, 2023	Jul. 19, 2023	Feb. 08, 2023	Feb. 03, 2023	Nov. 30, 2023	Sep. 30, 2023	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Nov. 11, 2024	Jun. 30, 2024	Jul. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants to purchase common stock							600,000				600,000
Issuance cost for warrants									$ (427,000)			$ (1,627,000)
Warrants exercise price							$ 0.66				$ 0.66
Common warrants liabilities							$ 3,137,000				$ 3,137,000		$ 1,224,000
Pre-funded warrants liabilities			$ 1,700,000				0				0		0
Common warrants exercised						1,400,000
Loss (gain) on change in fair value of warrant liability							117,000		$ (7,016,000)		1,913,000	(8,601,000)
Proceeds from sale of common stock, net of commissions											648,000	$ 658,000
Monte-Carlo [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common warrants liabilities			$ 10,300,000				726,000				726,000		312,000
Black-Scholes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Re-valued common warrants	$ 5,800,000						$ 2,400,000				$ 2,400,000		$ 912,000
Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants to purchase common stock				2,000,000
Warrant [Member] | Monte-Carlo [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price			$ 5.81				$ 1.34				$ 1.34		$ 0.59
Pre-Funded Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of warrants to purchase common stock				300,000	300,000
Pre-Funded Warrants [Member] | Black-Scholes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price			$ 5.81
February 2023 Financing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Description of Transaction											On February 3, 2023, the Company entered into a securities purchase agreement with two institutional investors
Date of agreement											Feb. 03, 2023
Number of warrants to purchase common stock						924,000	600,000		924,000		600,000	924,000	600,000
Gross proceeds from purchase agreement				$ 1,200,000
Gross proceeds from sale of common stock				$ 8,800,000
Warrants exercise price							$ 0.51				$ 0.51		$ 0.51
Class of Warrant Reduced as a Result of Anti Dilutive provision of Common Stock				$ 4.89
Class of warrant reduced as a result of sale of common stock in the open market				$ 0.51
Loss on issuance of warrants			$ 10,000,000
Common warrants exercised						1,400,000
Gain on exercise of warrant													$ 3,400,000
Loss on issuance of common warrants			2,000,000
Issuance of shares													2,800,000
February 2023 Financing [Member] | Monte-Carlo [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common warrants liabilities			10,300,000
Pre-funded warrants liabilities							$ 726,000				$ 726,000
Increase in common warrants													$ 414,000
February 2023 Financing [Member] | Black-Scholes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-funded warrants liabilities			$ 1,700,000
February 2023 Financing [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock number of shares issued in transaction				1,700,000
Common stock price				$ 0.0001
Number of warrants to purchase common stock				300,000
February 2023 Financing [Member] | Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price				$ 5
Number of warrants to purchase common stock				2,000,000
Warrants exercise price				$ 5
Warrants exercisable term				5 years
February 2023 Financing [Member] | Pre-Funded Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price				$ 4.99999
Number of warrants to purchase common stock					300,000		0				0		0
Warrants exercise price				$ 0.00001
Common warrants exercised					300,000
Gain on exercise of warrant					$ 561,000
Issuance of shares					$ 186,000
Loss (gain) on change in fair value of warrant liability							$ 12,000		$ (5,500,000)		$ 414,000	$ (7,100,000)
February 2023 Financing [Member] | Pre Funded Warrant And Common Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of ownership on outstanding common stock immediately after exercise				4.99%
Percentage of ownership on outstanding common stock at election of holder				9.99%
July 2023 Financing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Description of Transaction											On July 19, 2023, the Company entered into a securities purchase agreement with several institutional investors
Date of agreement		Jul. 21, 2023									Jul. 19, 2023
Common stock price	$ 3.05
Gross proceeds from purchase agreement		$ 13,900,000
Gross proceeds from sale of common stock		$ 1,100,000
Warrants exercise price													$ 4.89		$ 4.89
Common warrants liabilities	$ 9,100,000
Issuance of shares													$ 673,000
Fair value of common stock and common warrant issued	$ 1,100,000
Amount Allocated to Common Warrant													$ 427,000
Loss (gain) on change in fair value of warrant liability							$ (105,000)				$ (1,500,000)
Sale of common stock during period	2,991,027
Class of warrant or right issued							0				0		0
July 2023 Financing [Member] | Black-Scholes [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common warrants liabilities													$ 912,000			$ 5,800,000
Pre-funded warrants liabilities							$ 2,400,000				$ 2,400,000
Increase in common warrants													$ 1,500,000
July 2023 Financing [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of stock number of shares issued in transaction		2,991,027
Common stock price		$ 0.0001
July 2023 Financing [Member] | Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock price		$ 5.015
Number of warrants to purchase common stock		2,991,027					2,991,027				2,991,027		2,991,027
Warrants exercise price		$ 4.89
Warrants exercisable term		5 years
July 2023 Financing [Member] | Pre Funded Warrant And Common Warrant [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of ownership on outstanding common stock immediately after exercise		4.99%
Percentage of ownership on outstanding common stock at election of holder		9.99%
2024 Registration Statement [Member] | Maximum [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available-for-sale Securities														$ 250,000,000
2024 Registration Statement With Baby Shelf Rules [Member] | Maximum [Member] | Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Available-for-sale Securities														$ 15,800,000
2021 Sales Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of shares								$ 13,000		$ 13,000
2021 Sales Agreement [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of common stock during period								702,000		118,000
2021 Registration Statement and 2021 Sales Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from sale of common stock, net of commissions											$ 648,000
Sale of common stock during period											702,090
Common stock weighted average price											$ 0.94