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Property and Equipment and Construction in Progress (Tables) | 9 Months Ended
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Sep. 30, 2020
Property, Plant and Equipment [Abstract] |
Schedule of construction in progress |
|  | 2020 |  |  | 2019 |
Xuzhou Tian’an |  | $ | - |  |  | $ | 37,759,277 |
Less: assets impairment allowance |  |  | - |  |  |  | (13,935,075 | )
Total |  | $ | - |  |  | $ | 23,824,202 |

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- Definition Tabular represents the amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service. + References No definition available. + Details
Name: | creg_ScheduleOfConstructionInProgressTableTextBlock
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_PropertyPlantAndEquipmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration