Other Payables and Accruals (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Other Payables And Accruals [Abstract]

Summary of Other Payables And Accruals

	As of December 31,
	2021		2022
	US$		US$
Payables in respect of research and development expenses		4,248		5,435
Accrued salaries and bonuses		2,485		2,475
Accrued other expenses		2,265		1,662
Accrued share issue costs		644		—
Deposit received for a potential out-licensing drug patent (note)		1,000		1,000
Others		759		1,103
		11,401		11,675