Quarterly report pursuant to Section 13 or 15(d)

Income taxes (Details)

v3.21.1
Income taxes (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Tax Disclosure [Abstract]    
Income tax expense $ 0 $ 0
Effective tax rate 0.00% 0.00%
Accrued interest and penalties related to uncertain tax positions $ 0