GOODWILL AND INTANGIBLE ASSETS - INTANGIBLE ASSETS, OTHER THAN GOODWILL (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Total intangible assets, Gross Carrying Amount	$ 3,240	$ 3,240
Total intangible assets, Net Carrying Amount	1,400	1,624
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	2,240	2,240
Amortizable intangible assets, Accumulated Amortization	(1,840)	(1,616)
Amortizable intangible assets, Net Carrying Amount	400	624
Marketing Agreement with a related party
Indefinite-lived Intangible Assets [Line Items]
Nonamortizable intangible assets	1,000	1,000
Licenses
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	1,000	1,000
Amortizable intangible assets, Accumulated Amortization	(600)	(500)
Amortizable intangible assets, Net Carrying Amount	400	500
Trade names
Finite-Lived Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amount	1,240	1,240
Amortizable intangible assets, Accumulated Amortization	(1,240)	(1,116)
Amortizable intangible assets, Net Carrying Amount	$ 0	$ 124