LEASES - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
LEASES
Fixed/base rent	$ 1,159	$ 1,200
Variable payments	402	154
Amortization of leased assets	39	40
Interest on lease liabilities	43	32
Total lease costs	$ 1,643	$ 1,426