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ACQUISITIONS AND DIVESTITURES 3 (NARRATIVE) (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2015 | Dec. 31, 2015
Business Acquisition [Line Items] |  |  |  |
Investments in non-marketable equity investments |  | $ 2,119,000 |  |
CafeX [Member] |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity Method Investment, Ownership Percentage |  | 17.80% |  | 17.20%
Investments in non-marketable equity investments | $ 1 |  | $ 9,000,000 |
Bridge Loan | $ 2,100,000 |  |  |
Bridge loan stated interest rate | 12.00% |  |  |

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