LEASES - Lessee Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Aug. 12, 2020	Dec. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset	$ 1,929		$ 1,863
Operating lease liability	1,917		1,868	$ 3,100
Finance lease, ROU asset	3,018		0
Finance lease, lease liability	$ 3,053		$ 0
Percentage of operating leases which are real estate leases	66.00%
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Operating lease right-of-use asset				$ 3,100
Annadale
Lessee, Lease, Description [Line Items]
Finance lease, ROU asset		$ 3,100
Finance lease, lease liability		$ 3,100
Finance lease term (in years)		35 years
Real Estate
Lessee, Lease, Description [Line Items]
Operating lease liability	$ 1,300
Equipment
Lessee, Lease, Description [Line Items]
Operating lease liability	$ 600
Minimum | Real Estate
Lessee, Lease, Description [Line Items]
Term of operating lease (in years)	3 years
Minimum | Property, Plant and Equipment
Lessee, Lease, Description [Line Items]
Term of operating lease (in years)	2 years
Maximum | Real Estate
Lessee, Lease, Description [Line Items]
Term of operating lease (in years)	15 years
Maximum | Property, Plant and Equipment
Lessee, Lease, Description [Line Items]
Term of operating lease (in years)	5 years