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INVESTMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2020 | Jun. 30, 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 |  |  | 1,752 |
Fair Value end of the period |  |  | 5,147 | 1,885
Proceeds from sale of investments |  | 305 |  |
Cost of purchase of marketable equity securities |  |  |  | 1,300
Marketable equity securities receivable | $ 900 | 900 |  |
Marketable equity securities |  |  |  |
Investments rollforward |  |  |  |
Opening balance |  | 1,885 | 2,718 | 2,718
Additions/transfers during the period |  |  | 264 |
Net (loss) on securities sold | (600) | (619) |  |
Disposals/transfers during period |  | (1,266) |  |
Unrealized (loss) on securities held |  |  | 1,372 |
Fair Value end of the period |  |  | 4,354 | 1,885
Proceeds from sale of investments | $ 1,200 | $ 1,300 |  |
Warrants |  |  |  |
Investments rollforward |  |  |  |
Opening balance |  |  | 413 | $ 413
Unrealized (loss) on securities held |  |  | 380 |
Fair Value end of the period |  |  | $ 793 |

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