Stock Plans - Schedule of Fair Value Assumptions (Detail) - Stock Options [Member]	6 Months Ended
	Jun. 30, 2023
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 years
Expected volatility	91.00%
Risk-free interest rate	3.60%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term (in years)	6 years 9 months 18 days
Expected volatility	100.00%
Risk-free interest rate	3.90%