Share-Based Payments - Summary of Share-Based Payments Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	$ (1,345)	$ (976)	$ (4,800)	$ (3,416)
Research and Development expenses [Member] | Stock Options [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	(376)	(337)	(1,272)	(1,002)
Research and Development expenses [Member] | Restricted Stock Units [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	(85)	(201)	(614)	(594)
Sales and Marketing expenses [Member] | Stock Options [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	(25)	30	(78)	(3)
Sales and Marketing expenses [Member] | Restricted Stock Units [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	(8)	20	(25)	4
General and Administrative expenses [Member] | Stock Options [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	(747)	(423)	(2,473)	1,599
General and Administrative expenses [Member] | Restricted Stock Units [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based payments	$ (106)	$ (66)	$ (337)	$ (223)