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RELATED PARTY TRANSACTIONS AND BALANCES (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Sep. 28, 2012
Related Party Transaction [Line Items] |  |  |  |
Sales | $ 13,442,273 | $ 11,194,197 | $ 11,894,944 |
Related party balances: |  |  |  |
Amounts due from related parties | 8,997,439 | 1,528,712 |  |
Amounts due to related parties | 6,769,898 | 26,829,605 |  |
Daqo Group [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due to related parties | 6,075 | 15,076,133 |  |
Purchases of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | 8,186,294 | 5,655,016 | 3,863,858 |
Purchases of Raw Materials [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | 17,651 | 129,219 | 32,755 |
Rental Expenses [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense | 1,014,556 | 1,021,891 | 1,050,661 |
Rental Expenses [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense | 37,756 | 27,997 |  |
Proceeds From Interest Free Loans [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  |  | 15,043,550 |
Repayment of Interest Free Loans [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 2,696,513 | 10,974,807 | 20,217,257 |
Income (Loss) from Disposal of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  |  | 6,458 |
Repayment of Interest Bearing Loan [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 15,495,451 | 15,059,000 |  |
Interest Expenses Related Party [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense | 440,368 | 850,380 |  |
Interest Expenses Related Party [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense | 440,368 | 850,380 |  |
Proceeds From Related Parties Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 63,172,079 | 126,400,842 | 245,957,818 |
Repayment Of Related Parties Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 83,754,652 | 148,463,137 | 276,575,346 |
Zhengjiang Daqo Solar Co. Ltd [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Sales | 13,442,273 | 11,194,197 | 11,111,239 |
Related party balances: |  |  |  |
Amounts due from related parties | $ 8,585,337 | 1,449,824 |  |
Zhengjiang Daqo Solar Co. Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Daqo Solar Co Ltd [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Sales |  |  | 783,705 |
Daqo Solar Co Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Daqo Solar Co Ltd [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | $ 40,089,689 | 60,300,896 | 127,060,826 |
Daqo Solar Co Ltd [Member] | Repayment of Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 40,388,195 | 68,766,506 | 151,990,672 |
Xinjiang Daqo Investment Co., Ltd [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due to related parties | $ 84,541 | 79,197 |  |
Xinjiang Daqo Investment Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Xinjiang Daqo Investment Co., Ltd [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | $ 14,356,000 | 56,270,085 | 72,946,700 |
Xinjiang Daqo Investment Co., Ltd [Member] | Repayment of Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 14,356,000 | 38,715,449 | 73,252,506 |
Daqo New Material [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due to related parties | $ 6,014,190 | 8,323,271 |  |
Daqo New Material [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Daqo New Material [Member] | Purchases of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | $ 7,390,693 |  |  |
Daqo New Material [Member] | Rental Expenses [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense | 976,800 | 993,894 | 1,050,661 |
Daqo New Material [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 6,029,877 | 9,607,344 | 11,082,241 |
Daqo New Material [Member] | Repayment of Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions | 10,818,493 | 12,262,592 | 11,285,114 |
Chongqing Daqo Tailai [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due to related parties | $ 494,954 | 2,107,488 |  |
Chongqing Daqo Tailai [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Chongqing Daqo Tailai [Member] | Purchases of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | $ 715,361 | 3,534,248 | 375,528 |
Chongqing Daqo Tailai [Member] | Purchases of Raw Materials [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases |  |  | 9,938 |
Chongqing Daqo Tailai [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  | 222,517 | 6,367,640 |
Chongqing Daqo Tailai [Member] | Repayment of Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  | 2,684,783 | 6,367,640 |
Chongqing Daqo Tailai [Member] | Income (Loss) from Disposal of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  |  | 6,458 |
Daqo Transformer [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Jiangsu Daqo [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Nanjing Daqo Electric [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Zhenjiang Klockner-Moeller Electrical Systems Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Nanjing Daqo [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  | 100.00%
Nanjing Daqo [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  |  | 13,456,861 |
Nanjing Daqo [Member] | Repayment of Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Other transactions |  |  | 13,456,861 |
Other Subsidiaries of Daqo Group [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due from related parties | 412,102 | 78,888 |  |
Amounts due to related parties | 1,364 | 221,441 |  |
Other Subsidiaries of Daqo Group [Member] | Purchases of Fixed Assets [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | 80,240 | 2,120,768 | 3,488,330 |
Other Subsidiaries of Daqo Group [Member] | Purchases of Raw Materials [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Purchases | 17,651 | 129,219 | 22,817 |
Other Subsidiaries of Daqo Group [Member] | Proceeds From Interest Free Loans [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Expense |  |  | $ 5,296 |
Nanjing Intelligent Apparatus Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Nanjing Intelligent Software Co., Ltd. [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Shanghai Sailfar Electric Technology Co., Ltd. [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Jiangsu Daquan High Voltage Switchgear Co Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 75.00% |  |  |
Jiangsu Daqo Kai-fan Electric Co Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Zhenjiang Electric Equipment Co Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Nanjing Daqo Transformer [Member] |  |  |  |
Related party balances: |  |  |  |
Amounts due to related parties | $ 168,774 | $ 1,022,075 |  |
Jiangsu Daqo ETE Electronic Systerm Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 75.00% |  |  |
Jiangsu Daquan Kai-fan Switchgear Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |
Nanjing Yidian Huichuang information technology Co., Ltd [Member] | Daqo Group [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Equity interest held | 100.00% |  |  |

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