Date which lease or group of leases is set to expire, in YYYY-MM format.

No definition available.

Name:	creg_LeaseExpirationDate
Namespace Prefix:	creg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of expense for employee benefit and equity-based compensation.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Cash payments to lessor's for use of assets under operating leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (g)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

+ Details

Name:	us-gaap_PaymentsForRent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LeaseContractualTermAxis=creg_LeaseCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Lease (Details)					1 Months Ended		6 Months Ended
Lease (Details)	May 06, 2024 USD ($) shares	May 06, 2024 CNY (¥) shares	May 06, 2022 USD ($) shares	May 06, 2022 CNY (¥) shares	Nov. 20, 2017 USD ($)	Nov. 20, 2017 CNY (¥)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 CNY (¥)
Commitments [Line Items]
Monthly rental payment					$ 5,600	¥ 36,536	$ 5,600	¥ 36,536
Expiration date							November 2020	November 2020
Monthly salary	$ (2,500)	¥ 18,000	$ (2,500)	¥ 18,000
Common stock annually	5,000	5,000	5,000	5,000
Lease Commitment [Member]
Commitments [Line Items]
Monthly rental payment							$ 5,600	¥ 36,536