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SEGMENT INFORMATION (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue - External | $ 86,858,401 |  | $ 232,169,579 | $ 252,814,827 |
Revenue - Intersegment |  |  |  |  |
Total revenues | 86,858,401 |  | 232,169,579 | 252,814,827 |
Cost of revenues | 124,290,384 |  | 144,946,025 | 144,651,384 |
Gross profit (loss) | (37,431,983) |  | 87,223,554 | 108,163,443 |
Polysilicon [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue - External | 73,450,807 |  | 218,915,487 | 217,921,352 |
Revenue - Intersegment | 6,067,339 |  | 1,696,573 |  |
Total revenues | 79,518,146 |  | 220,612,060 | 217,921,352 |
Cost of revenues | 110,243,043 |  | 125,962,033 | 113,910,595 |
Gross profit (loss) | (30,724,897) |  | 94,650,027 | 104,010,757 |
Wafer [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue - External | 13,407,594 |  | 13,254,092 | 34,893,475 |
Revenue - Intersegment |  |  |  |  |
Total revenues | 13,407,594 |  | 13,254,092 | 34,893,475 |
Cost of revenues | 20,114,680 |  | 20,680,565 | 30,740,789 |
Gross profit (loss) | (6,707,086) |  | (7,426,473) | 4,152,686 |
Elimination [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenue - External |  |  |  |  |
Revenue - Intersegment | (6,067,339) |  | (1,696,573) |  |
Total revenues | (6,067,339) |  | (1,696,573) |  |
Cost of revenues | (6,067,339) |  | (1,696,573) |  |
Gross profit (loss) |  |  |  |  |
Customer A [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues | 21,749,284 |  | 28,219,079 | 33,763,866 |
Customer B [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues |  | [1] | 27,214,590 | 30,273,322 |
Customer D [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues |  | [1] | 33,140,475 |  | [1]
Customer G [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total revenues |  | [1] | $ 28,570,338 |  | [1]
[1] | Represents less than 10%

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- Definition The aggregate cost of goods produced and sold and services rendered during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 + Details
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Definition Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount of revenue from transactions with other operating segments of the same entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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