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INVESTMENTS ACCOUNTED FOR AT FAIR VALUE (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments accounted for at fair value | $ 1,107 |
Percentage of fair value investment | 16.50% |
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Investments accounted for at fair value | $ 1,107 | $ 903

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