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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
	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			$ 4,880,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember	30,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember			$ 21,040,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember	130,000,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFourMember	$ 16,400,000us-gaap_DebtInstrumentFaceAmount / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember	100,000,000us-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					488,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember	3,000,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanThreeMember					1,618,463us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember	10,000,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember	615,067us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearOneMember	3,750,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearOneMember	1,025,111us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearTwoMember	6,250,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearTwoMember	1,230,133us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearThreeMember	7,500,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal / us-gaap_DebtInstrumentAxis = creg_MinimumQuarterlyPaymentYearFourMember
Loan outstanding balance	12,870,000us-gaap_LoansPayableFairValueDisclosure
Loans outstanding, current	4,290,000us-gaap_LoansPayableCurrent										4,900,000us-gaap_LoansPayableCurrent / us-gaap_DebtInstrumentAxis = creg_IndustrialBankLoanFiveMember
Long-term loans	$ 8,580,000us-gaap_LongTermLoansPayable

X

- Definition

Debt instrument, maturity in years

+ References

No definition available.

+ Details

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Namespace Prefix:	creg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of national base interest rate

+ References

No definition available.

+ Details

Name:	creg_PercentageOfNationalBaseInterestRate
Namespace Prefix:	creg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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

Name:	us-gaap_DebtInstrumentPeriodicPaymentPrincipal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- 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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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