Liquidity - Additional Information (Detail) - USD ($)			1 Months Ended	3 Months Ended				6 Months Ended		12 Months Ended
	May 09, 2024	Oct. 02, 2023	Mar. 31, 2022	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022	May 19, 2024	Dec. 31, 2023
Cash And Cash Equivalents [Line Items]
Net loss				$ (21,854,000)	$ (21,398,000)	$ (8,475,000)	$ (8,356,000)	$ (43,252,000)	$ (16,831,000)
Accumulated deficit				(319,662,000)				(319,662,000)				$ (276,410,000)
Cash and cash equivalents				57,024,000				57,024,000				$ 169,681,000
Marketable securities current				209,099,000				209,099,000
Long-term marketable securities				28,482,000				28,482,000
Net cash used in operating activities								(30,179,000)	(12,294,000)
Proceeds from sale of common stock, net of costs								148,955,000	$ 7,099,000
Securities Purchase Agreement [Member]
Cash And Cash Equivalents [Line Items]
Sale and issuance of warrants								10,000,000
Proceeds from warrant exercise								35,600,000
Exercisable warrants maximum aggregate exercise price				$ 14,400,000				14,400,000
Jefferies LLC
Cash And Cash Equivalents [Line Items]
Aggregrate Offering Price											$ 150,000,000
Underwritten Public Offering [Member]
Cash And Cash Equivalents [Line Items]
Issuance of common stock (shares)	3,450,000	3,450,000	2,666,667
Proceeds from offering after deducting underwriting discount and other estimated offering expenses	$ 158,700,000	$ 69,000,000	$ 13,800,000
Underwriter discount and other offering expenses	$ 9,700,000
Price per unit	$ 46.00	$ 20.00	$ 3.75
Proceeds from warrant exercise								$ 0
Underwritten Public Offering [Member] | Securities Purchase Agreement [Member] | Maximum [Member]
Cash And Cash Equivalents [Line Items]
Proceeds from sale of common stock, net of costs										$ 60,000,000