LEASES - Schedule of Lease, Cost (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
 [1]
Lease, Cost [Abstract]    
Operating lease expense $ 385 $ 267
Variable lease expense 17 0
Sublease income $ (250) $ (103)
[1] Rent expense and sublease income as reported under ASC Topic 840.