Percentage of national base interest rate

No definition available.

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

- 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

- 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 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: 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

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- 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

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=creg_IndustrialBankLoanFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=creg_IndustrialBankLoanFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=creg_MinimumQuarterlyPaymentYearOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=creg_MinimumQuarterlyPaymentYearTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=creg_MinimumQuarterlyPaymentYearThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

LOANS PAYABLE (Bank Loans - Industrial Bank) (Narrative) (Details) ¥ in Thousands			9 Months Ended
	Oct. 09, 2013 USD ($)	Nov. 08, 2011 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2015 CNY (¥)	Oct. 09, 2013 CNY (¥)	Nov. 08, 2011 CNY (¥)
Debt Instrument [Line Items]
Minimum quarterly payment \| ¥				¥ 10,000
Industrial Bank Loan Four [Member]
Debt Instrument [Line Items]
Bank loans payable issued		$ 21,040,000				¥ 130,000
Rate as percentage of national base interest rate used to reset floating interest rate		115.00%
Debt instrument, basis spread on variable rate		7.36%
Industrial Bank Loan Five [Member]
Debt Instrument [Line Items]
Bank loans payable issued	$ 16,400,000	$ 11,790,000			¥ 100,000
Rate as percentage of national base interest rate used to reset floating interest rate	120.00%
Minimum quarterly payment			$ 1,618,463
2014 [Member]
Debt Instrument [Line Items]
Minimum quarterly payment			615,067	3,750
2015 [Member]
Debt Instrument [Line Items]
Minimum quarterly payment			1,025,111	6,250
2016 [Member]
Debt Instrument [Line Items]
Minimum quarterly payment			$ 1,230,133	¥ 7,500