LEASES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Operating lease, right-of-use asset	$ 886	$ 1,106
Operating lease, liability	886
Lease reassessment right of use assets and lease liabilities	67
Right of use assets and lease liabilities	$ 135	$ 1,362
Minimum
Operating Leased Assets [Line Items]
Lessee, discount rate	4.00%
Operating​ lease ​remaining ​lease ​term	2 years
Maximum
Operating Leased Assets [Line Items]
Lessee, discount rate	6.00%
Operating​ lease ​remaining ​lease ​term	3 years