Leases - Schedule of Classification of ROU Assets and Lease liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
ASSETS
Operating right-of-use assets	$ 2,206	$ 2,289
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other noncurrent assets	Other noncurrent assets
Finance right-of-use assets	$ 128	$ 148
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other noncurrent assets	Other noncurrent assets
Total leased assets	$ 2,334	$ 2,437
Current
Operating leases	$ 495	$ 475
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Finance leases	$ 53	$ 62
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Noncurrent
Operating leases	$ 3,463	$ 3,600
Operating Lease, Liability Noncurrent Statement Of Financial Position [Extensible Enumeration]	Long-term liabilities	Long-term liabilities
Finance leases	$ 81	$ 92
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term liabilities	Long-term liabilities
Total lease liabilities	$ 4,092	$ 4,229