Leases - Additional Information (Details) - USD ($)
$ in Thousands
|3 Months Ended|
Mar. 31, 2022
Mar. 31, 2021
|operating lease expense||$ 52||$ 52|
Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.
Reference 1: http://www.xbrl.org/2003/role/exampleRef