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STATUTORY RESERVES (Narrative) (Details) (Statutory Surplus Reserve Fund [Member]) | 6 Months Ended
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Jun. 30, 2014
Subsidiary or Equity Method Investee [Line Items] |
Percentage of income transferred to retained earnings appropriated for legal reserve | 10.00%
Statutory surplus reserve fund percentage | 50.00%
Maximum [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Percentage Of Income Transferred To Common Welfare Fund For Legal Reserve | 10.00%
Minimum [Member] |
Subsidiary or Equity Method Investee [Line Items] |
Percentage of total remaining reserve | 25.00%
Percentage Of Income Transferred To Common Welfare Fund For Legal Reserve | 5.00%

X
- Definition Percentage of income transferred to common welfare fund for legal reserve. + References No definition available. + Details
Name: | creg_PercentageOfIncomeTransferredToCommonWelfareFundForLegalReserve
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Income Transferred To Retained Earnings Appropriated For Legal Reserve. + References No definition available. + Details
Name: | creg_PercentageOfIncomeTransferredToRetainedEarningsAppropriatedForLegalReserve
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Total Remaining Reserve. + References No definition available. + Details
Name: | creg_PercentageOfTotalRemainingReserve
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Statutory Surplus Reserve Fund Percentage. + References No definition available. + Details
Name: | creg_StatutorySurplusReserveFundPercentage
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration