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INCOME TAXES - NOL (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Net operating losses |  |  |
Total net operating losses | $ 2,000 | $ 2,100 | $ 4,200
Annual NOL carryforward available for use | 71,000 |  |
Federal |  |  |
Net operating losses |  |  |
Total net operating losses | 900 | 1,000 |
NOL write-down | 48,500 |  |
Foreign |  |  |
Net operating losses |  |  |
Total net operating losses | 200 | 100 |
State |  |  |
Net operating losses |  |  |
Total net operating losses | 900 | $ 1,000 |
NOL write-down | $ 17,500 |  |

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