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LOANS PAYABLE (Bank Loan - Bank of Chongqing) (Narrative) (Details)
12 Months Ended 0 Months Ended
Dec. 31, 2014
USD ($)
Dec. 31, 2014
CNY
Apr. 11, 2014
Loan From Bank of Chongqing [Member]
USD ($)
Apr. 11, 2014
Loan From Bank of Chongqing [Member]
CNY
Dec. 31, 2014
Loan From Bank of Chongqing [Member]
USD ($)
Debt Instrument [Line Items]          
Debt Instrument, Face Amount     $ 8,130,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
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50,000,000us-gaap_DebtInstrumentFaceAmount
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Debt Instrument Maturity In Years     3 years 3 years  
Debt Instrument, Maturity Date     Apr. 10, 2017 Apr. 10, 2017  
Debt Instrument, Interest Rate, Stated Percentage     9.225%us-gaap_DebtInstrumentInterestRateStatedPercentage
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9.225%us-gaap_DebtInstrumentInterestRateStatedPercentage
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Debt Instrument, Periodic Payment, Principal     810,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
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5,000,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
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Debt Instrument Remaining loans Receivable     7,320,000creg_DebtInstrumentRemainingLoansReceivable
/ us-gaap_DebtInstrumentAxis
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45,000,000creg_DebtInstrumentRemainingLoansReceivable
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Payments of Debt Issuance Costs 405,696us-gaap_PaymentsOfDebtIssuanceCosts 2,550,000us-gaap_PaymentsOfDebtIssuanceCosts 155,280us-gaap_PaymentsOfDebtIssuanceCosts
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950,000us-gaap_PaymentsOfDebtIssuanceCosts
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Loans Payable, Noncurrent $ 8,580,000us-gaap_LongTermLoansPayable       $ 8,170,000us-gaap_LongTermLoansPayable
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