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Other Receivables (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Other Receivables [Abstract]
Advance to third party	$ 6,920	$ 7,179
Advance to employees	$ 46,952	19,579
Advance to suppliers		$ 2,583

X

- Definition

Amount of advance to employees.

+ References

No definition available.

+ Details

Name:	creg_AdvanceToEmployees
Namespace Prefix:	creg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Advance to suppliers.

+ References

No definition available.

+ Details

Name:	creg_AdvanceToSuppliers
Namespace Prefix:	creg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

It represent the value of third party advance.

+ References

No definition available.

+ Details

Name:	creg_AdvanceToThirdParty
Namespace Prefix:	creg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

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