Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Domestic and Foreign Components of Net Loss (Details)

v3.20.4
Income Taxes - Schedule of Domestic and Foreign Components of Net Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]                      
Net loss $ (10,941) $ (11,289) $ (9,500) $ (10,012) $ (9,579) $ (9,148) $ (8,718) $ (7,642) $ (41,742) $ (35,087) $ (23,167)
Domestic                      
Operating Loss Carryforwards [Line Items]                      
Net loss                 (41,599) (34,181) (23,047)
Foreign                      
Operating Loss Carryforwards [Line Items]                      
Net loss                 $ (143) $ (906) $ (120)