Other Long-Term Liabilities - Summary of Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Other Long-Term Liabilities
Lease obligation, long-term portion (see Note 6)	$ 1,016	$ 1,124
Conditional economic incentive grants	250	250
Other	402	80
Total other long-term liabilities	$ 1,668	$ 1,454