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ACCRUED LIABILITIES AND OTHER PAYABLES (Details) (USD $) | Dec. 31, 2014 | Dec. 31, 2013
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Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | $ 3,250,744 creg_AccruedExpensesAndOtherCurrentLiabilities | $ 1,517,191 creg_AccruedExpensesAndOtherCurrentLiabilities
Employee training, labor union expenditure and social insurance [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | 693,969 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_OtherEmployeeBenefitsAccrualsMember | 521,373 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_OtherEmployeeBenefitsAccrualsMember
Consulting, auditing, and legal expenses [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | 537,973 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_LegalAndConsultingServicesMember | 403,860 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_LegalAndConsultingServicesMember
Accrued payroll and welfare [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | 304,512 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_PayrollAndEmployeeBenefitsMember | 318,871 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_PayrollAndEmployeeBenefitsMember
Accrued system maintenance expense [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | 0 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_MaintenanceAndSupportMember | 49,205 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_MaintenanceAndSupportMember
Accrued interest expense [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | 1,439,770 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_AccruedInterestExpenseMember | 71,902 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_AccruedInterestExpenseMember
Other [Member] |  |
Accounts Payable and Accrued Liabilities [Line Items] |  |
Accrued liabilities and other payables | $ 274,520 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_OtherAccruedExpenseMember | $ 151,980 creg_AccruedExpensesAndOtherCurrentLiabilities / us-gaap_InformationByFinancialStatementLineItemAxis = creg_OtherAccruedExpenseMember

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