Quarterly report pursuant to Section 13 or 15(d)

Revenue - Summary of Company's Revenue Based on Nature of Products and Services (Detail)

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Revenue - Summary of Company's Revenue Based on Nature of Products and Services (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of Revenue [Line Items]        
Revenue $ 24,045 $ 15,639 $ 64,584 $ 47,514
Hardware [Member]        
Disaggregation of Revenue [Line Items]        
Revenue 17,469 11,044 46,039 33,515
Consumables [Member]        
Disaggregation of Revenue [Line Items]        
Revenue 4,899 3,540 14,295 11,123
Services [Member]        
Disaggregation of Revenue [Line Items]        
Revenue $ 1,677 $ 1,055 $ 4,250 $ 2,876