Stockholders' Equity (Deficit) - Schedule of options (Detail) - Options - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number
Beginning balance (in shares)	6,425,000	4,594,688
Granted (in shares)	1,932,500	2,585,000
Exercised (in shares)	0	(15,000)
Forfeited (in shares)	(114,063)	(739,688)
Ending balance (in shares)	8,243,437	6,425,000	4,594,688
Vested and expected to vest (in shares)	4,620,822
Weighted Average Exercise Price
Beginning balance (in usd per share)	$ 2.69	$ 2.09
Granted	1.48	3.45
Exercised (in usd per share)	0	0.80
Forfeited (in usd per share)	2.00	2.41
Ending balance (in usd per share)	2.41	$ 2.69	$ 2.09
Vested and expected to vest (in usd per share)	$ 2.44
Weighted-Average Remaining Contractual Term (in Years)
Weighted Average Remaining Contractual Life (Years)	4 years 11 months 23 days	5 years 7 months 17 days	6 years 2 months 15 days
Weighted-average remaining contractual life, granted (in Years)	6 years 2 months 8 days	6 years 3 months
Weighted average remaining contractual life, vested and exercisable (in Years)	4 years 8 months 12 days
Weighted-Average Fair Value [Abstract]
Beginning balance weighted-average fair value (in usd per share)	$ 4.26	$ 3.72
Options, weighted average grant date fair value (in usd per share)	1.10	3.34
Ending balance, weighted-average fair value (in usd per share)	3.58	$ 4.26	$ 3.72
Vested and expected to vest, exercisable, weighted average grant date fair value (in usd per share)	$ 3.20