Government Grant - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2019	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Government Grant [Member]
Grant revenue		$ 0	$ 100,000	$ 200,000
Accounts Receivable, Related Parties		$ 0	$ 0		$ 28,000
U.S. Food and Drug Administration [Member]
Grant Received	$ 1,000,000.0
Grant Term	2 years