Other Long-Term Liabilities - Summary of Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Other Long-Term Liabilities
Research and development incentive credit	$ 3,796	$ 3,599
Lease obligation, long-term portion (see Note 4)	303	672
Conditional economic incentive grants	160	250
Other	46	60
Total other long-term liabilities	$ 4,305	$ 4,581