Quarterly report pursuant to Section 13 or 15(d)

Components of Accrued Liabilities (Detail)

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Components of Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Payables And Accruals [Abstract]      
Payroll and benefits $ 1,465 $ 1,726  
Warranty accrual, current portion 911 865 $ 807
Lease liability 140 323  
Accrued professional services 443 330  
Taxes 31 242  
Accrued insurance premium 374 546  
Other 715 712  
Total accrued liabilities $ 4,079 $ 4,744