XML 81 R51.htm IDEA: XBRL DOCUMENT
v2.4.0.6

NONCONTROLLING INTEREST (Narrative) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2012 Erdos Tch Energy Saving Development Co Ltd [Member] USD ($) | Dec. 31, 2012 Erdos Tch Energy Saving Development Co Ltd [Member] CNY | Dec. 31, 2012 Erdos Tch Energy Saving Development Co Ltd [Member] After Modification [Member] | Dec. 31, 2012 Xian Tch Energy Tech Co Ltd [Member] USD ($) | Dec. 31, 2012 Xian Tch Energy Tech Co Ltd [Member] CNY | Dec. 31, 2012 Xian Tch Energy Tech Co Ltd [Member] After Modification [Member]
Noncontrolling Interest [Line Items] |  |  |  |  |  |
Equity interest percentage | 7.00% | 7.00% |  |  |  |
Total registered capital | $ 17,550,000 | 120,000,000 |  |  |  |
Profit distribution percentage | 20.00% | 20.00% | 40.00% | 80.00% | 80.00% | 60.00%
Contributed in capital | $ 1,180,000 | 8,000,000 |  | $ 16,370,000 | 112,000,000 |

X
- Definition Contributed Capital. + References No definition available. + Details
Name: | creg_ContributedCapital
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage Share Of Gain Loss From Joint Venture. + References No definition available. + Details
Name: | creg_PercentageShareOfGainLossFromJointVenture
Namespace Prefix: | creg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Registered Capital. + References No definition available. + Details
Name: | creg_RegisteredCapital
Namespace Prefix: | creg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 159 -Paragraph 18 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -Subparagraph a (1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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