Quarterly report pursuant to Section 13 or 15(d)

Commitments - Lease Cost (Detail)

v3.21.2
Commitments - Lease Cost (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disclosure of Lease of Cost [Abstract]        
OperatingLeaseCost $ 154 $ 154 $ 307 $ 307
VariableLeaseCost 35 24 65 46
LeaseCost $ 189 $ 178 $ 372 $ 353