Quarterly report pursuant to Section 13 or 15(d)

Revenue - Additional Information (Details)

v3.21.1
Revenue - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Revenue Concentration [Abstract]      
Unredeemed loyalty program rewards $ 300   $ 400
Revenue 10,830 $ 12,226  
Shipping costs      
Revenue Concentration [Abstract]      
Revenue $ 500 $ 400