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Taxes Payable (Tables) | 9 Months Ended
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Sep. 30, 2017
Taxes Payable [Abstract] |
Schedule of taxes payable |
|  | 2017 |  |  | 2016 |
Income |  | $ | 414,871 |  |  | $ | 773,397 |
VAT |  |  | 943,912 |  |  |  | 366,230 |
Other |  |  | 145,048 |  |  |  | 63,050 |
Total |  | $ | 1,503,831 |  |  | $ | 1,202,677

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- Definition Tax Disclosure [Table Text Block] + References No definition available. + Details
Name: | creg_TaxDisclosureTableTextBlock
Namespace Prefix: | creg_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_TaxesPayableCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration