Quarterly report pursuant to Section 13 or 15(d)

Revenue - Additional Information (Details)

v3.21.2
Revenue - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Revenue Concentration [Abstract]        
Revenue $ 10,989 $ 9,941 $ 21,819 $ 22,167
Shipping costs        
Revenue Concentration [Abstract]        
Revenue $ 400 $ 300 $ 900 $ 700