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INVESTMENTS AND CONVERTIBLE NOTE RECEIVABLE - Stock split and carrying value (Details) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2020 $ / shares shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($)	Dec. 22, 2019 $ / shares	Dec. 03, 2019 USD ($)	Aug. 08, 2018 $ / shares shares
Marketable Securities [Line Items]
Exercise price \| $ / shares				$ 1.11
Investments		$ 6,536	$ 8,403
Convertible note		5,876	5,589
Preferred stock
Marketable Securities [Line Items]
Investments		5,173	4,865
Investment in Panacea
Marketable Securities [Line Items]
Investments		$ 7			$ 13,297
Investment in Panacea \| Warrant
Marketable Securities [Line Items]
Exercise price \| $ / shares		$ 2.344
Investments		$ 1,124	2,865
Investment in Panacea \| Preferred stock
Marketable Securities [Line Items]
Investments		5,173
Aurora Cannabis Inc [Member]
Marketable Securities [Line Items]
Reverse stock split, ratio	12
Aurora Cannabis Inc [Member] \| Warrant
Marketable Securities [Line Items]
Shares represented by warrants \| shares	81,164					973,971
Exercise price \| $ / shares	$ 112.44					$ 9.37
Investments		$ 239	$ 673