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FAIR VALUE ACCOUNTING (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Assets: |  |
Long term debt | $ 49,200 |
Recurring |  |
Assets: |  |
Investments | 3,131 | $ 7,971
Assets | 3,131 | 7,971
Recurring | Level 1 |  |
Assets: |  |
Investments | 2,718 | 6,404
Assets | 2,718 | 6,404
Recurring | Level 2 |  |
Assets: |  |
Investments | 413 | 1,567
Assets | $ 413 | $ 1,567

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