Balance Sheet Information - Summary of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Payables And Accruals [Abstract]
Inventory receipts	$ 2,704	$ 4,302
Paid time off	1,452	1,284
Payroll and other employee benefits	1,284	2,266
Deferred revenues	625	538
Employee stock purchase plan	503	253
Operating leases	$ 495	$ 475
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Total	Total
Income and sales taxes	$ 433	$ 415
Professional fees and contractors	360	233
Warranties	253	257	$ 295	$ 285
Customer refunds for estimated returns	232	248
Real estate taxes	195	156
Finance leases	53	62
Restructuring	0	368
Other	364	260
Total	$ 8,953	$ 11,117