Debt instrument, maturity in years

No definition available.

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

- Definition

he first percentage of repayment of principal under the trust plan.

+ References

No definition available.

+ Details

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

- Definition

The third percentage of repayment of principal under the trust plan.

+ References

No definition available.

+ Details

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

- Definition

The second percentage of repayment of principal under the trust plan.

+ References

No definition available.

+ Details

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

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal 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 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

+ Details

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

- 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

- Details

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

- Definition

The amount of cash paid during the current period for interest that is capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

+ Details

Name:	us-gaap_InterestPaidCapitalized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

LOANS PAYABLE (Trust Loan - Zhongrong International Trust - Xuzhou Zhongtai and Tangshan Rongfeng) (Narrative) (Details)	12 Months Ended				12 Months Ended
	Dec. 31, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd One [Member] USD ($)	Dec. 31, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd One [Member] Zhongtai [Member] USD ($)	Feb. 17, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd One [Member] Zhongtai [Member] USD ($)	Feb. 17, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd One [Member] Zhongtai [Member] CNY	Dec. 31, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd Two [Member] Rongfeng [Member] USD ($)	Feb. 17, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd Two [Member] Rongfeng [Member] USD ($)	Feb. 17, 2014 Trust Loan Agreement With Zhongrong International Trust Co Ltd Two [Member] Rongfeng [Member] CNY
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 24,500,000	150,000,000		$ 22,100,000	135,000,000
Long-term Debt, Gross		24,450,000			21,920,000
Debt Instrument Repayment Of Principal Percentage One		30.00%			30.00%
Debt Instrument Repayment Of Principal Percentage Two		30.00%			30.00%
Debt Instrument Repayment Of Principal Percentage Three		40.00%			40.00%
Interest Paid, Capitalized	$ 3,000,000
Debt Instrument Maturity In Years	4 years