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INCOME TAXES (Narrative) (Details) ¥ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax paid | $ 9,526,485 |  | $ 2,998,658 | $ 2,726,825 |
Deferred Tax Assets, Valuation Allowance | $ 41,316,449 |  | $ 38,729,208 | $ 42,362,849 | $ 50,109,751
Statutory enterprise income tax rate | 25.00% | 25.00% | 25.00% | 25.00% |
State Administration of Taxation, China [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Statutory enterprise income tax rate | 25.00% | 25.00% |  |  |
Preferential tax rate | 15.00% | 15.00% | 15.00% | 15.00% |
PRC State Council, income tax rate | 10.00% | 10.00% |  |  |
Xinjiang Daqo New Energy Co., Ltd. [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax paid | ¥ |  | ¥ 0.1 |  |  |
Chongqing Daqo New Energy Co., Ltd. [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Net operating losses carried forward | $ 84,700,000 |  |  |  |
Deferred Tax Assets, Valuation Allowance | $ 41,316,449 |  | $ 38,729,208 |  |

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