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INCOME TAXES (Narrative) (Details) ¥ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 14, 2008 | Dec. 31, 2018 USD ($) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax paid |  | $ 19,452,799 |  | $ 9,526,485 | $ 2,998,658
Statutory enterprise income tax rate |  | 25.00% | 25.00% | 25.00% | 25.00%
Preferential tax rate |  | 15.00% | 15.00% |  |
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 |  |
Preferential tax rate |  | 25.00% | 25.00% |  |
Chongqing Daqo New Energy Co., Ltd. [Member] |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Deferred Tax Assets, Valuation Allowance |  | $ 27,062,264 |  | $ 41,316,449 |
Preferential tax rate | 15.00% | 25.00% | 25.00% | 15.00% |

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