INVESTMENTS (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Investments rollforward
Opening balance	$ 1,885	$ 3,131	$ 3,131
Additions/transfers during the period		264
Unrealized (loss) on securities held		827
Fair Value end of the period	875	4,222	1,885
Proceeds from sale of investments	112
Cost of purchase of marketable equity securities	1,200		1,300
Marketable equity securities
Investments rollforward
Opening balance	1,885	2,718	2,718
Additions/transfers during the period		264
Net (loss) on securities sold	(16)
Disposals/transfers during period	(112)
Unrealized (loss) on securities held	(882)	605
Fair Value end of the period	875	3,587	1,885
Proceeds from sale of investments	$ 100	0
Warrants
Investments rollforward
Opening balance		413	$ 413
Unrealized (loss) on securities held		222
Fair Value end of the period		$ 635