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ORGANIZATION AND PRINCIPAL ACTIVITIES (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 31, 2015 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Related Party Transaction [Line Items] |  |  |  |
Proceeds from non-controlling interest |  |  |  | $ 2,516,457
Xinjiang Daqo Investment [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest acquired (as a percent) | 1.00% |  |  |
Daqo Group [Member] | Xinjiang Daqo [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Ownership percentage | 100.00% |  |  |
Proceeds from non-controlling interest | $ 2,500,000 |  |  |

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