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LOANS PAYABLE (Bank Long Term Loans - Industrial Bank) (Narrative) (Details) |  | 1 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended
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Dec. 31, 2014 USD ($) | Mar. 31, 2011 Industrial Bank Loan Two [Member] | Mar. 31, 2011 Industrial Bank Loan Three [Member] USD ($) | Mar. 31, 2011 Industrial Bank Loan Three [Member] CNY | Dec. 31, 2014 Industrial Bank Loan Three [Member] USD ($) | Dec. 31, 2014 Industrial Bank Loan Three [Member] CNY | Nov. 08, 2011 Industrial Bank Loan Four [Member] USD ($) | Nov. 08, 2011 Industrial Bank Loan Four [Member] CNY | Oct. 09, 2013 Industrial Bank Loan Five [Member] USD ($) | Oct. 09, 2013 Industrial Bank Loan Five [Member] CNY | Dec. 31, 2014 Industrial Bank Loan Five [Member] USD ($) | Dec. 31, 2014 Industrial Bank Loan Five [Member] CNY | Dec. 31, 2014 2014 [Member] USD ($) | Dec. 31, 2014 2014 [Member] CNY | Dec. 31, 2014 2015 [Member] USD ($) | Dec. 31, 2014 2015 [Member] CNY | Dec. 31, 2014 2016 [Member] USD ($) | Dec. 31, 2014 2017 [Member] CNY
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bank loans payable issued |  |  | $ 4,880,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember | 30,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember |  |  | $ 21,040,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember | 130,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember | $ 16,400,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember | 100,000,000 us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember |  |  |  |  |  |  |  |
Debt instrument maturity term |  |  | 3 years | 3 years |  |  | 4 years | 4 years | 4 years | 4 years |  |  |  |  |  |  |  |
Rate as percentage of national base interest rate used to reset floating interest rate |  | 115.00%creg_PercentageOfNationalBaseInterestRate / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanTwoMember |  |  |  |  | 115.00%creg_PercentageOfNationalBaseInterestRate / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember | 115.00%creg_PercentageOfNationalBaseInterestRate / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember | 120.00%creg_PercentageOfNationalBaseInterestRate / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember | 120.00%creg_PercentageOfNationalBaseInterestRate / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  | 7.07%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanTwoMember |  |  |  |  | 7.36%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember | 7.36%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember |  |  |  |  |  |  |  |  |  |
Minimum quarterly payment |  |  |  |  | 488,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember | 3,000,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember |  |  |  |  | 1,618,463 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember | 10,000,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember | 615,067 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearOneMember | 3,750,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearOneMember | 1,025,111 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearTwoMember | 6,250,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearTwoMember | 1,230,133 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearThreeMember | 7,500,000 us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearFourMember
Loan outstanding balance | 12,870,000 us-gaap_LoansPayableFairValueDisclosure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans outstanding, current | 4,290,000 us-gaap_LoansPayableCurrent |  |  |  |  |  |  |  |  |  | 4,900,000 us-gaap_LoansPayableCurrent / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember |  |  |  |  |  |  |
Long-term loans | $ 8,580,000 us-gaap_LongTermLoansPayable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Debt instrument, maturity in years + References No definition available. + Details
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- Definition Percentage of national base interest rate + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400 + Details
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- Details
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- Definition Amount of the required periodic payments applied to principal. + 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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- Definition Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Fair value portion of contractual obligation to pay money on demand or on fixed or determinable dates. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + 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) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 + Details
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