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Refundable Deposit from Customers for Systems Leasing | 12 Months Ended
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Dec. 31, 2017
Refundable Deposit from Customers for Systems Leasing [Abstract] |
REFUNDABLE DEPOSIT FROM CUSTOMERS FOR SYSTEMS LEASING | 13. REFUNDABLE DEPOSIT FROM CUSTOMERS FOR SYSTEMS LEASING As of December 31, 2017 and 2016, the balance of refundable deposit from customers for systems leasing for Pucheng and Shengqiu was $1,086,591 and $1,023,497, respectively.

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- Definition The entire disclosure for refundable deposit from customers for systems leasing. + References No definition available. + Details
Name: | creg_RefundableDepositFromCustomersForSystemsLeasingTextBlock
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_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration