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BORROWINGS (Long-Term Borrowings) (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Jul. 19, 2017 | Jun. 30, 2014
Debt Instrument [Line Items] |  |  |  |  |
Long-term bank borrowings | $ 144,487,400 |  |  |  |
Huaxia Bank [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing amount of credit facility | $ 115,300,000 |  |  | $ 3,100,000 |
Fixed interest rate |  |  |  | 16.00% |
Weighted average interest rate | 5.50% |  |  |  |
Proceeds from Lines of Credit | $ 3,100,000 |  |  |  |
Bank of China [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing amount of credit facility |  |  | $ 115,300,000 |  |
Amount repaid | 35,400,000 | $ 35,400,000 | 44,600,000 |  |
Amount of collateral |  |  |  |  | $ 61,300,000
Long-term bank borrowings | 64.6 | 35,400,000 | $ 70,700,000 |  |
Chongqing Rural Commercial Bank [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing amount of credit facility | $ 96,100,000 |  |  |  |
Interest rate spread over rate issued by People's Bank of China | 20.00% |  |  |  |
Amount repaid | $ 18,400,000 | 13,100,000 |  |  |
Fixed interest rate | 5.90% |  | 5.90% |  |
Line of Credit Facility, Maximum Amount Outstanding During Period |  | $ 54,900,000 | $ 96,100,000 |  |
Proceeds from Lines of Credit | $ 21,900,000 |  |  |  |
Chongqing Rural Commercial Bank [Member] | Facility One [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing amount of credit facility | $ 76,800,000 |  |  |  |
Bank Facilities [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Weighted average interest rate | 5.90% | 5.80% | 44.60% |  |
Long-term bank borrowings | $ 144,487,400 | $ 162,347,163 |  |  |
Bank Facilities [Member] | Huaxia Bank [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term bank borrowings | 3,074,200 | 0 |  |  |
Bank Facilities [Member] | Bank of China [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term bank borrowings | 0 | 33,118,850 |  |  |
Bank Facilities [Member] | Chongqing Rural Commercial Bank [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term bank borrowings | $ 141,413,200 | $ 129,228,313 |  |  |

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- Definition Amount of assets pledged to secure a debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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