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BORROWINGS (Short-Term Borrowings) (Details) - USD ($) | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Short-term Debt [Line Items] |  |  |
Short-term bank borrowings | $ 34,135,224 | $ 43,807,350 |
Interest rate on short-term bank borrowings | 5.00% | 5.10% | 5.00%
Daqo Group and its related parties [Member] |  |  |
Short-term Debt [Line Items] |  |  |
Short-term bank borrowings | $ 29,076,000 | $ 43,807,350 |
Certificate of deposit [Member] |  |  |
Short-term Debt [Line Items] |  |  |
Short-term bank borrowings | $ 5,059,224 | $ 0 |

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