Stockholders Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended			3 Months Ended	6 Months Ended
	Feb. 28, 2023	Aug. 31, 2020	Nov. 30, 2019	Mar. 31, 2023	Jun. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation related to unvested stock options					$ 13.1
Weighted-average stock option recognize period					2 years 9 months 18 days
Common stock, shares authorized					200,000,000	200,000,000	200,000,000
Common stock, par value					$ 0.0001		$ 0.0001
Number of common shares sold	750,000
Shares Issued, Price Per Share	$ 6.75
Pre Funded Warrant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Pre-funded warrants to purchase shares of common stock	4,064,814
Warrant price (per share)	$ 6.7499
Underwritten Offering [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares sold	750,000
Shares Issued, Price Per Share	$ 6.75
Sale of stock consideration	$ 30.3
Underwritten Offering [Member] | Pre Funded Warrant [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Pre-funded warrants to purchase shares of common stock	4,064,814
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted					698,000
Stock vesting period			1 year
Total unrecognized compensation related to nonvested restricted stock units					$ 10.3
Restricted Stock Units (RSUs) [Member] | Executive Officers [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Shares, Granted		250,000	300,000	698,000
Restricted Stock Units (RSUs) [Member] | One Year Anniversary [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of stock subject to vesting (as a percent)		50.00%
Restricted Stock Units (RSUs) [Member] | New Drug Application [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of stock subject to vesting (as a percent)		50.00%		50.00%
Restricted Stock Units (RSUs) [Member] | YCANTH [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of stock subject to vesting (as a percent)				50.00%