Share-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Millions			1 Months Ended						9 Months Ended		12 Months Ended
	Aug. 17, 2021 shares	Jun. 28, 2017 shares	Sep. 30, 2024 shares	Dec. 31, 2023 USD ($) $ / shares shares	Sep. 30, 2023 shares	Jul. 31, 2023 shares	Dec. 31, 2022 $ / shares shares	Jun. 30, 2020 shares	Oct. 05, 2023 shares	Sep. 30, 2022 shares	Dec. 31, 2023 USD ($) Installments $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2019 shares	Mar. 11, 2019 shares	Oct. 18, 2017 shares	Oct. 17, 2017 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance				14,845,127							14,845,127
Common stock reserved for issuance				5,239,058							5,239,058
Share based compensation options granted											46,413
Common stock, shares/units issued				52,999,680			52,456,195				52,999,680	52,456,195
Common Stock, Par or Stated Value Per Share | $ / shares				$ 0.001			$ 0.001				$ 0.001	$ 0.001
Compensation expense recognized | $											$ 0.1
Aggregate intrinsic value of stock options exercised | $												$ 0.1
Stock option exercised											0
Employee Stock Option
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant-date fair value of awards granted | $ / shares											$ 1.29	$ 7.94
Total unrecognized compensation cost related to unvested share-based awards | $				$ 4.5							$ 4.5
Weighted average period											1 year 7 months 2 days
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period											3 years 14 days
Unrecognized compensation expense | $											$ 10.3
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Equal Monthly Installments | Installments											4
Share-based Compensation Arrangement by Share-based Payment Award, Right to Receive Share, Number											1
Share based compensation options granted											4,907,199
Common Stock, Par or Stated Value Per Share | $ / shares				$ 0.001							$ 0.001
Vested and released											329,008
Weighted average grant-date fair value of awards granted | $ / shares											$ 1.72
Performance-Based Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares in addition to stock option										140,000
Vested and released					70,001
Subsequent Event [Member] | Performance-Based Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vested and released			69,999
2017 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance		1,785,416													2,696,401	1,785,416
Number of shares to be incremented													607,324
Percentage of outstanding shares of common stock to be incremented													4.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized									2,500,000	2,000,000
Share based compensation options granted											46,413
Common stock, shares/units issued				4,882,868							4,882,868
Stock option exercised											0
2017 Plan [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price per share of stock options as a percentage of fair market value of share of common stock		100.00%
2017 Plan [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options vesting period		10 years
2019 Inducement Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized				500,000		250,000	875,000	700,000
Common stock reserved for issuance														331,500
Common stock, shares/units issued				356,190							356,190
Two Thousands And Seventeen Stock Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	3,170,254