Annual report pursuant to Section 13 and 15(d)

Leases - Cash Flow and Supplemental Information (Details)

v3.20.4
Leases - Cash Flow and Supplemental Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Leases [Abstract]      
Operating cash flows used in operating leases $ 232 $ 114 $ 151
Operating cash flows used in short-term leases $ 35 $ 68 $ 72