XML 86 R65.htm IDEA: XBRL DOCUMENT
v3.21.1

Commitments (Details) |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
May 08, 2020 USD ($) shares | May 08, 2020 CNY (¥) shares | Oct. 10, 2019 | Apr. 15, 2019 | Nov. 20, 2017 USD ($) | Nov. 20, 2017 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Commitments (Details) [Line Items] |  |  |  |  |  |  |  |
Lease agreement, description |  |  |  |  | lease for its office with a term from December 1, 2017 through November 30, 2020. | lease for its office with a term from December 1, 2017 through November 30, 2020. |  |
Monthly rental payment |  |  |  |  | $ 5,600 | ¥ 36,536 |  |
Rental expense |  |  |  |  |  |  | $ 19,674 |
Common stock annually (in Shares) | shares | 5,000 | 5,000 |  |  |  |  |  |
Description of engagement agreement |  |  | the Company entered an investment banking engagement agreement with an investment banker firm to engage them as the exclusive lead underwriter for a registered securities offering of up to $20 million. The Company shall pay to the investment banker an equity retainer fee of 15,000 shares (post-reverse stock split) of the restricted Common Stock of the Company (10,000 shares was issued within 10 business days of signing the agreement, and remaining 5,000 shares will be paid upon completion of the offering). The agreement expired in March 2021. | The Shares were sold to the Purchasers at a negotiated purchase price of $0.80 per share, for gross proceeds to the Company of $1,887,417, before deducting $200,000 in placement agent fees and other estimated offering expenses payable by the Company. |  |  |  |
New Lease Contract [Member] |  |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |  |
Lease agreement, description |  |  |  |  | The Company entered a new lease contract for the same location for a period from January 1, 2021 through December 31, 2023 | The Company entered a new lease contract for the same location for a period from January 1, 2021 through December 31, 2023 |  |
Monthly rental payment |  |  |  |  | $ 5,600 | ¥ 36,536 |  |
Chief Financial Officer [Member] |  |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |  |
Monthly salary | $ 2,300 | ¥ 16,000 |  |  |  |  |  |
Beijing Office [Member] |  |  |  |  |  |  |  |
Commitments (Details) [Line Items] |  |  |  |  |  |  |  |
Rental expense |  |  |  |  |  |  | $ 61,508 | $ 86,874

X
- References No definition available. + Details
Name: | creg_CommitmentsDetailsLineItems
Namespace Prefix: | creg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expense for employee benefit and equity-based compensation. + References No definition available. + Details
Name: | us-gaap_EmployeeBenefitsAndShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Description of lessee's operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseDescription
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash payments to lessor's for use of assets under operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForRent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Description of stock transaction which may include details of the offering (IPO, private placement), a description of the stock sold, percentage of subsidiary's or equity investee's stock sold, a description of the investors and whether the stock was issued in a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 + Details
Name: | us-gaap_SaleOfStockDescriptionOfTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=creg_NewLeaseContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_ChiefFinancialOfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=creg_BeijingOfficeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |