Annual report pursuant to Section 13 and 15(d)

Accrued Expenses - Schedule of Accrued Expenses (Details)

v3.20.4
Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Payables And Accruals [Abstract]      
Compensation and related benefits $ 2,602 $ 1,163  
Accrued warranty (Note 7) 242 338 $ 112
Accrued services 1,504 1,141  
Accrued expenses $ 4,348 $ 2,642